Al Jackson is back this morning with an essay examining another old friend, the 1950 film Destination Moon. Talk about fond memories! I first encountered the movie at a birthday party for a bunch of unruly 4th graders, finding the birthday boy absorbed in watching the spaceship Luna enroute to the Moon in an upstairs room while the party went on below. I stayed right there until his mother came up to scold him and bring us both back down to eat cake, dying to know what happened. Since then I’ve enjoyed the film numerous times, especially appreciating the Woody Woodpecker teaching sequence and the ingenious solution to the crew’s problems getting everyone back home. A veteran of the Apollo days and a science fiction fan with encyclopedic knowledge of the field, Dr. Jackson gives us a look at how the film was made and illuminates Robert Heinlein’s connections to the project. Time to pull out my DVD for another look.

by Albert A Jackson

I was two weeks away from age 7 in October 1947 when Chuck Yeager flew the Bell X-1 at Mach 1 over Rogers Dry Lake in California. That really seized my mind; I read what I could about rockets and jets. I built a StromBecker wooden model of the X-1. I finally got a spaceflight book in early 1951, when I was 10: Rockets, Jets, Guided Missiles and Space Ships, by Jack Coggins and Fletcher Pratt. Quite a treasure! I did not see a copy of Bonestell and Ley’s 1949 book Conquest of Space, which would have been a bit overwhelming when I was 10, until about 20 years later.

I remember seeing an article in LIFE magazine, (April 24th 1950), for a movie called Destination Moon [1]. Later there were ads for the film that really caught my eye. There was a movie about a rocket going to the Moon with people in spacesuits. There were even radio ads that I heard. Alas, I was 10 in the fall of 1950, and my family was 2 years away from taking me and brother and sister to downtown theaters. Destination Moon may have come to a neighborhood theater in the spring of 1951 but I did not see the film until the fall of that year at a kiddie matinee. The wait was worth it, for it was a moment of transport.

Origins

Destination Moon, or something like it, probably would have been made in the late 40s or early 50s; it pretty much owes its origin to Frau im Mond, the 1929 Fritz Lang film about a trip to the Moon. Willy Ley, who had worked as an uncredited technical adviser on that Fritz Lang film, came to know Lang well. (The technical adviser on Frau im Mond was Hermann Oberth, who Ley knew. Even though Oberth studied in Munich he was from a small town and hated Weimar Berlin. Ley had to shepherd him around and act as a liaison for Lang.) Lang moved to Los Angeles after the Nazis came to power. After the end of World War II, Robert Heinlein moved back to Los Angeles. During this time Willy Ley, who Heinlein knew, would come to LA to visit Lang.

With the end of World War II, Heinlein began to develop a close interest in rockets and atomic power. He made it a personal campaign at the end of 1945 and beginning of 1946 to get the Navy interested in rockets [2, 3]. The advent of the large rocket, the V2, was on Lang’s mind too; he talked to Ley about making another movie about a spaceship to the Moon. Ley put Lang in touch with Heinlein. Lang invited the Heinleins for dinner often in 1946 and 1947. During those years. Lang and Heinlein talked about a lot of things, Heinlein was reluctant to start writing young adult novels, but Lang convinced Heinlein it would be an excellent way to connect with an audience that had an appetite for space flight. So Heinlein wrote Rocket Ship Galileo, which turned out to be a commercial success. Finally, in March of 1948 [2, 3], Lang had Heinlein huddle with him over making a film. At first Heinlein suggested Rocket Ship Galileo, but he and Lang decided they needed a more adult narrative. During this time, Lang spent a lot of time trying to convince a studio to finance a film about a trip to the Moon. None would have it. Heinlein had earlier taken on a Hollywood agent, Lou Schor, because of the need to handle possible radio adaptations of his works. When Heinlein suggested that he and Lang use his Hollywood agent, Lang had a problem with this. This led, by mid-1948, to Heinlein and Lang parting ways, though they remained friends [2, 3].

Screenplay and George Pal

Heinlein now had a ‘Hollywood bug’, likely because he had just come out of a rough financial period. Lou Schor put him in touch with screen writer Alford (Rip) Van Ronkel [2, 3]. After a week of talking, Van Ronkel suggested Heinlein write a treatment of the story. Heinlein did this, and within a few weeks handed van Ronkel a 97 page story narrative called ‘Operation: Moon’ on July 21 1948 [3]. Heinlein may have had an extensive outline in hand from his work with Fritz Lang. Using his novel Rocket Ship Galileo, Heinlein took only the narrative about an atomic powered rocket, a trip to the Moon and a crew of four, now adults (the Nazis on the Moon in the novel were removed). Some of Heinlein’s “The Man Who Sold the Moon” also diffused into the treatment. Within a few weeks, van Ronkel wrote the first draft of the screenplay for the film. Shortly thereafter, Schor arranged for Van Ronkel to be at a cocktail party where he introduced him to George Pal; there he told Pal about the screenplay. At this time Pal wanted to move from his animated “Puppetoons” into full-up film features. Also, Pal’s home studio had lost its financing. Pal was intrigued and had Heinlein and Van Ronkel come to his office for a pitch meeting [2, 3]. They struck a deal; Pal took the project to Paramount, but that studio said no [4].

Heinlein and his wife Virginia moved to Colorado Springs in the fall of 1948. Pal was striking out when it came to finding a studio when the former head of RKO, Peter Rathvon, formed his own production company, Eagle-Lion, and showed interest. He made a deal with Pal for two films, although he considered Destination Moon too speculative, so arranged things so that if it had losses, Pal would make a ‘Christmas Film’ called “The Great Rupert” to cover Destination Moon‘s shortfall at the box office. It turned out the other way around! [2, 3]

It took until May of 1949 for Pal to swing this deal. In April 1949 Heinlein finally got paid for the screen story and the rights to Rocket Ship Galileo (even though very little of the novel was to be used). Heinlein also contracted to be the technical adviser (1) for the movie. He insisted that Chesley Bonestell be hired to work on the film [3]. Heinlein and Virginia moved, temporarily, back to LA. There, he worked with the production design crew and director Irving Pichel. He found Pichel to be bright, understanding and in agreement about the story. This was good because Rathvon convinced Pal to take on another screen writer, James O’Hanlon, who rewrote the script even to the point of making it a musical, or at least inserting a musical number! (2) Thankfully almost all of O’Hanlon’s revisions were torn up by Pichel. Shooting was delayed from summer of 1949 to November so that The Great Rupert could be completed, which Pichel also directed. Principal photography on Destination Moon began on the 14th of November, 1949, and ran until roughly the 16th of December.

Image: Robert Heinlein with director Irving Pichel

Heinlein and Bonestell worked out many designs for the film. The space ship, called Luna, was initially submitted by Bonestell, and was the Lunar ship (2) in Conquest of Space by Ley and Bonestell [6], except that Bonestell (maybe consulting with Heinlein) did away with the aft V2-like fins and modified the wings. (2) Art director Ernst Fegté changed the design, keeping the central ogive and moving the wings back, the wings and a strut became part of the ‘landing gear’.

Luna is a beautiful ship and is functional enough. Bonestell made a model of the landing site, the crater Harpalus, and then a 14 foot matte lunar surface painting for the set. Pal’s production crew spent 2 months building the on-set ‘surface’. Heinlein and Bonestell were appalled when they saw it! It looked like a dried lake bed, impossible on the Moon. Pal and cinematographer Lionel Lindon decided that on a relatively small set they needed to increase the depth of field , so the added ‘cracks’. Heinlein went along with this, but Bonestell was never happy with it. Luna’s cockpit had to be designed four times in a back and forth between Heinlein and Bonestell and production design. Amazingly the cockpit was a rotating set [10], quite a feat for 1949, on a budget, (roughly 18 years before Kubrick used one, in a spaceflight movie, Kubrick and Clarke’s 2001: A Space Odyssey).

Image: At left is the ship from Conquest of Space; at right is Bonestell’s design for Destination Moon.

The Movie

The movie starts in a block house with stock footage of a V2 launch. This is the only time we see a control room, one that looks pretty good, if simplified. Heinlein was in one when he went to a V2 launch at White Sands, New Mexico in 1946 [3]. There is a ‘motor’ failure, which is a bit kludgy since Dr. Charles Cargraves ‘engine’ is supposed to be a nuclear reactor. There is talk about sabotage but it’s all kind of vague. A technician, Joe Sweeney, is about to run outside but Cargraves (3) stops him.

General Thayer later visits Jim Barnes, owner of an aircraft company, and tells him he suspects the rocket was sabotaged. Thayer wants Barnes to help Cargraves. He also speculates that the next rocket Cargraves builds will have an improved engine powered by atomic energy and could travel to the Moon. Jim is skeptical, but Thayer convinces him that the combined resources of American industry could put a rocket on the Moon within a year.

We have now been introduced to the crew that goes to the Moon: John Archer as Jim Barnes, Warner Anderson as Dr. Charles Cargraves, Tom Powers as General Thayer and Dick Wesson as Joe Sweeney. Pal, as some references say, looked for a cast of actors who were unknown but is not clear why it was B-list wooden Indians (4)! It is not Z- level movie acting but certainly near low B level. Dick Wesson is the comic-relief, an old Hollywood cliché, and it seems Heinlein went along with this. Wesson’s character plays the part of an ‘everyman’ to whom some of the scientific facts can be explained.

At a formal gathering, Jim tries to interest a consortium of industrial leaders in the project, and he shows them a Woody Woodpecker cartoon that explains how space travel could become a scientific reality. Besides teaching some basic physics, the cartoon has mission detail never mentioned elsewhere in the film, namely that when Luna returns to Earth there is some areo-breaking and a landing by parachute [1], with fins down but no full retro rocket landing.

Image: Woody Woodpecker explains rocket flight, and recovery methods on Earth.

General Thayer tells the group it is vital to global security that America be the first country to reach the Moon, warning that a foreign power could use the Moon as a missile base and thus gain control of the earth. Shades of the cold war! The industrialists fall all over themselves to finance the project. No mention is made of just which foreign power he is talking about.

When Luna is finished, Cargraves receives word that the government has denied his request to test it at the construction site, citing concerns about radioactive fallout. (Actually as I will note later, and though Heinlein would not have known it, this would have been an extremely dangerous launch.) Growing public opposition to the project leads Jim to suspect they have been targeted by a subversive propaganda campaign, and he decides to launch the rocket without waiting for permission. The crew is Cargraves, Barnes, Thayer and replacement radio man Sweeney. There is a stressful launch. High-g tests were being done by the Aeronautical Systems Center in 1948. I don’t know if there were photographs of the effects — it was not hard to extrapolate that a 5 g launch would distort the face — but this was a bit overdone in the film, and I’m not sure why Heinlein decided on 5 gs. It is notable that there are no ground control scenes, though indirectly we see what looks like a control center. We see the initial liftoff but not even a portion of the ascent. That could have been due to budget constraints. Almost all the ascent is depicted inside the ‘cockpit’.

Image: Cockpit during ascent. Couches and control panels to the right in the rotating cockpit set.

Once they are in transit to the Moon, the men don magnetic boots, which allow them to walk around in the zero g environment. Zero g had been accounted for in Frau im Mond (though in that film it never appears on screen). Destination Moon seems to be the first ‘full up’ portrayal of freefall. Those magnetic boots were a bit clunky but served their purpose.

Image: Zero g in Destination Moon.

There is a failure of the radar antenna, forcing the crew to put on spacesuits and go outside the ship to repair it. The suits are derived from pressure suits Heinlein had seen at the labs at the Philadelphia Naval Shipyard where he worked in WWII. Science fiction writer L. Sprague de Camp, also there, had been involved with this. The suits have a remarkable resemblance to some from 1943 (2a). I also think this is a better airlock in a film about space flight because the one in Frau im Mond is kind of confusing. This airlock is nicely functional.

Cargraves, of all people, loses magnetic contact with the ship and goes adrift in space (it would have been hard to train for this zero-g extravehicular activity on the ground!). He has to be rescued. The outside point of view shots are very nicely done, with some good stop-motion work with miniatures, one of Pal’s specialties. Heinlein noted that the star background was the best they could do in 1949 [10], but it looks good enough.

The ship eventually approaches the Moon, and having to account for rough terrain, they do some translating (shades of Apollo 11!) before finally touching down, though they have used more propellant than expected. This sequence starts with a beautiful outside shot of Luna rotating to a tail-down attitude with the lunar surface below. Attitude control seems to be by ‘gyro’ alone, as it seems no one thought of attitude jets. An auto-pilot is mentioned several times and seems to be in command many times. I am pretty sure all these technicalities are due to Heinlein (2a).

Cargraves and Barnes emerge from the ship to climb down a long row of retractable ladder rungs; there is some good stop-motion work here. The duo claim the Moon in the name of the United States. “By the grace of God and in the name of the United States of America… I take possession of this planet on behalf of, and for the benefit of…all mankind.” The technicalities of just how one would enforce that claim are left hanging in the vacuum.

Image: On the Lunar surface with the ‘cracks’ Bonestell hated. The full sized bottom of Luna.

The crew members conduct scientific tests, with General Thayer discovering there may be deposits of uranium on the Moon. There is some 1/6th-g action in a traverse. I am not sure but this may have been the only low-g demonstration on the Moon in a movie until recent times. Some of this was done with suited midgets on wires using forced perspective on a small lunar landscape set.

Barnes communicates by radio with Dr. Hastings at ‘mission control’ back home (we never see ‘mission control’, or Hastings, the astrodynamics guy back on Earth). Hastings confirms that their difficulties during landing used up too much of their reaction mass. Not clear why it was Barnes talking with Hastings, since Cargraves would have had more technical knowledge.

The earlier extravehicular activity (EVA), during transit, was just a minor mishap; now have a real problem to solve. Hastings instructs them to lighten the ship, and the men strip off nearly 3,000 pounds by removing metal fixtures and discarding all non-essential equipment. When Hastings tells them they must eliminate another 110 pounds, Thayer, Cargraves and Branes each volunteer to stay behind. They are about to draw lots when Sweeney sneaks out of the ship. He urges the others to leave, but Jim devises a way for them to discard the radio and the last spacesuit, thus reaching their weight goal. The ship takes off successfully, and the four men joyfully begin their journey back to Earth. Those high-g couches must have smarted without their cushions! Unlike the Earth launch more of the ascent is shown, and it is not so ‘sparky’, with better exhaust effect. One supposes they got back without having to do an EVA! Earth recovery required only a very small reaction mass (5). (The shooting script, maybe added by O’Hanlon, had scenes of domestic life with Cargraves and his wife at home. These may have been shot and then cut for the final movie).

Image: Lunar descent and ascent in the film.

Luna and Technology

It is quite striking that the spaceship in Destination Moon is single stage to the Moon and back. Heinlein had used this in his ‘kind of Tom Swiftian’ novel Rocket Ship Galileo, and it was one of the few technologies he brought over to Destination Moon from that novel. If one listens carefully when General Thayer is talking to Barnes, he mentions two numbers: an exhaust velocity of 30,000 ft/sec and a thrust of 3,000,000 pounds [1]. Exhaust velocity of 30,000 ft. per second is 9144 meters per second. Heinlein would have known that to do a single stage to the Moon, the delta V budget is 15 to 16 km/sec. Playing with the rocket equation, if one picks a mass ratio of 5 and calculates the exhaust speed, one gets about 9000 m/sec. It also implies an Isp of about 1000. No ordinary chemical fuel has a specific impulse like that. A number of guys at Los Alamos had realized that Isp was attainable with atomic energy. The first mention of an atomic rocket motor, before 1945, may have been Stan Ulam. Many technical reports came in 1945-1948 [14, 15, 16, and 17].

Heinlein knew Robert Cornog, who was at Los Alamos and would have known the skinny on nuclear rocket propulsion. Cornog had probably seen reports by Theodore von Karman and Hsue-Shen Tsien (1945) [17]), as well as Robert Serber (1946) [14], and Cornog wrote a report of his own (1945) [15]. Shepherd and Cleaver were the first to describe nuclear rockets in the open literature in 1948 [16]. Heinlein knew Cornog well and helped him keep a clearance after the war. The same calculation by Willy Ley (early 1949 [6]) is, in a roundabout way, in Conquest of Space.

The reactor in Destination Moon is never described, but it is not the rather funky Thorium one in Rocket Ship Galileo. The word ‘reactor’ is never used; it is usually ‘pile’, and the reactor seems to be a solid core. The reaction mass in the Destination Moon propulsion system is water, which would be very easy and safe to handle. The problem is that one can’t get an Isp of 1000 using water with a solid core nuclear engine. One can — I doubt Heinlein knew this — do it with a liquid core nuclear reactor (5), attaining an Isp of 1000 seconds.

Piecing together clues from the dialog in the screenplay, Heinlein’s novelette and his article in Astounding [10], some people have figured out the size and mass of Luna (5). The ship is 150 ft tall, with a ‘wet’ mass of about 250 metric tons and a dry mass of about 50 metric tons. Luna is a very good extrapolation fix-up from Rocket Ship Galileo, and not a sort of ‘hobby’ ship as in the novel. It is more planned, and put together by a SpaceX-like company without government money.

One element in the film where the government was right — Heinlein would not have known this — is that a liquid core nuclear rocket (5) has a radioactive plume coming off the reactor system which would be a cloud of death. The system would have been extremely hazardous if used in the atmosphere. The order sent to the launch site, which Barnes ignores, was thus correct. Liquid core atomic rocket engines were not proposed until 1953.

Guidance, navigation and control goes under the heading ‘automatic pilot’ in the movie, since we don’t really know, as far as I can tell, what date the flight is made (it looks like 1950). Heinlein makes the extrapolation that the electronics for doing this exists in the story. Note that Werner von Braun worked up The Mars Project in 1948 with the same kind of vacuum tube GNC systems, with no details given.

There is the use of ‘gyro’ attitude control, common to other writers about space flight at the time. Reaction jet attitude control was known in the engineering community but didn’t seem to get into science fiction. Gyro control was a favorite of von Braun also.

When it came to spacesuits (2a), Heinlein had experience with the issue during WWII at the Aeronautical Materials Lab at the Philadelphia Naval Shipyard, where he was a supervisor. L Sprague de Camp was recruited by Heinlein and was studying high altitude pressure suits. The spacesuits in Destination Moon were based on these [24]. I can only recall one movie before Destination Moon, Frau im Mond, that had spacesuits, and they were not really needed there.

Image: Pressure suits in the film on the left; on the right, a design being tested in Philadelphia in 1945.

Summary

Destination Moon is the product mainly of Robert Heinlein (6), facilitated by producer George Pal and film director Irving Pichel. Heinlein, when talking about a possible film with Friz Lang, started a reformulation of Rocket Ship Galileo into a more mature narrative. The Nazis (6) are jettisoned, and his ‘treatment’ seems reflected in the novelette he wrote of the same name [13]. After things did not work out with Lang, he wrote a treatment of his conversations with Lang and incorporated some of ‘The Man who Sold the Moon” within it. The ‘screenplay’ is online. It is all dialog, with no scene headings, action or transitions, which is odd, but probably this is just one of several script forms for the movie.

It is not clear what Pal wanted in the screenplay, but he was committed to a sort of docudrama. That’s what made the film an almost Popular Mechanics movie, so to speak. Pichel seemed to go out of his way to give Pal what he wanted. There was outside interference — the owner and CEO at Eagle-Lion, Peter Rathvon, imposed screenwriter James O’Hanlon, who inserted goofy stuff like musical numbers! (7). Pichel threw away all of O’Hanlon’s ‘script-doctoring’; there seems no record of what Pal thought of this, but he sure did not discipline Pichel. (Nor do we know what Rathvon thought of the final film which he was so nervous about).

Heinlein and Ginny returned to LA for film production in June of 1949 and remained until February of 1950. It is not clear if Heinlein advised on any of the post-production work, which was not completed until April 1, 1950. The finished film, if one could see a pristine version, looks great in Technicolor. The budget of almost $600,000 was not generous but sufficient, with hard work, to produce good special effects and production design. Heinlein was paid for the option of Rocket Ship Galileo and paid a portion for the screenplay; also, he was hired as technical consultant. I could not find what he got paid but it was enough for him and Ginny to get a start on a house in Colorado Springs [3].

Heinlein and Ginny returned to Colorado Springs in February, 1950. Patterson states the advertising and promotion of the film had a budget of $1.2 million, which is twice as much as production cost [3]. (I also found a promotion budget of $500,000 for the film [19].) Heinlein did publicity work in LA before he left, even a TV interview show with Pal and Bonestell [20]. Magazine and radio ads were everywhere and created a buzz for the movie [2, 3].

The film premiered in New York on June 27th, 1950. It seems that John W. Campbell was there, but it is not clear if Willy Ley or any of the New York Futurians attended. Bosley Crowther’s review in the New York Times was favorable, finding the film a visual treat; he was not much taken with the narrative drama. Other film reviews of the time were favorable, seemingly because of its novelty. Destination Moon made $5 million on its first run, which is almost a 3-multiplier (or a 5-multiplier if the advertising budget was 500,000), very good by modern standards.

Alas, much of profit was eaten up by coverage of the losses from The Great Rupert. The film would have made more but Eagle-Lion ran into distribution problems due to distribution control by the major studios [19]. Eagle-Lion entered into litigation for several years. Neither Peter Rathvon nor James O’Hanlon’s reaction to the film seems to be on record anywhere. Patterson’s biography does not make clear when Heinlein saw the film. He had to wait two years to get royalties for the first run, a little over $4000, and four more years before he got a small final payment [3].

Destination Moon is a bit of a quirk in film history. The public interest in science and technology was impacted by World War II, the atomic bomb, ballistic missiles, supersonic flight, radar, and the Cold War. Hollywood in 1948 was still in a mode that considered spaceflight crazy Buck Roger’s stuff. It took an independent studio and maverick producer and a science fiction grand master to get the film made.

In a way, Destination Moon was a sort of culmination of John W Campbell’s ambition to move away from pulp SF to something more sophisticated. The film is about as far away from Brass Bras and Bug Eyed Monsters as one can get. Destination Moon‘s success did not usher in a great era of space flight movies. Its competitor in 1950, Rocket Ship X-M, was actually a more interesting story although with silly engineering physics and a pulp-fiction Mars story. Pal followed with a film based on the second rate SF novel When Worlds Collide, and we got the totally goofy, pulpish Flight to Mars in 1951.

There were some weak efforts after 1951. Heinlein had a possible TV series called The World Beyond, but the pilot was released as a poorly financed movie called Project Moon Base. Pal’s 1955 Conquest of Space was the last serious space flight movie of the 1950’s. Alas, even though technically pretty good, James O’Hanlon seemed to get his revenge with a sappy story for the film. Then followed a torrent of schlock SF, awful films most of which were not even up to bad pulp standards! (8)

Destination Moon is a unique film. It took 18 years before there was a film with the same factual rigor, and probably more — that was 2001: A Space Odyssey. Destination Moon was influential; I know it impacted my life. When I was 11, I had no idea who Robert Heinlein (9) was. A year later I was reading his young adult novels. Almost simultaneously, in 1952, the Colliers series on spaceflight came out, then the Disney TV series. I could not imagine, at the time, that I was headed toward participating in Apollo and the first lunar landing. Looking back I am still a bit amazed.

Notes

1. At one point Heinlein suggested a backup technical adviser, Jack Parsons. That was odd; Parsons only real knowledge was rocket propellants. At that time, there were three guys from CalTech who Parsons knew and they were young and significant experts in spaceflight: Frank Malina, Martin Summerfeld and Hsue-Shen Tsien. Apparently Heinlein met Tsien but not Malina or Sommerfeld. They were all in LA at the time. Malina was an SF fan and expert in the new field of spaceflight, but apparently Heinlein never met him.

Chesley Bonestell did some technical advising on the film.

It is not clear if Pal agreed with Rathvon’s interference. Pal had wanted a documentary-style film and he had it in hand. Adding O’Hanlon meant some money when to him.

Heinlein wrote Willy Ley asking technical questions. Ley was not happy about this. He wrote back an angry letter asking to be paid for consulting. At the time Ley was strapped for money; I also wonder if he was a bit upset that he had been a facilitator of the whole course of events, since Conquest of Space seemed to be an input to the movie too. Heinlein tried to smooth things over but Ley remained unhappy [5]. In the 1954 edition of Rockets, Missiles, and Space Travel, Ley has a footnote about Destination Moon, saying he liked the film and praising its technical information [7].

Heinlein also consulted astrophysicist Fred Zwicky at CalTech and Robert S Richardson, an astronomer at Palomar Observatory and an SF author. Richardson did some detailed astrodynamics for Heinlein for Destination Moon.

2. Luna shows up in at least one or two more films, but Bonestell’s modified Conquest of Space ship is copied an uncountable number of times in movies [8, 9]. It shows up next in the 1951 Flight to Mars, and in modified versions on Tom Corbett Space Cadet and other TV shows.

2a. The spacesuits were suggested by Heinlein [3]. Like Luna, they were copied in other movies and TV shows many times. Color coding on uniforms and other similar clothes was not new, but the film used it to good advantage and it enhanced the Technicolor. It’s interesting that years later Kubrick used the same suit colors in 2001: A Space Odyssey, with the commander in red and the 2nd in command in yellow, with blue suits for the other crew and green for the suit in the emergency entrance [8].

Werner von Braun had, in 1948, vacuum tube guidance, navigation and control technology in the mission design for his Mars Project.

3. Cargraves is the only character carried over from Rocket Ship Galileo. The name seems to be a play on the name of Sir William Congreve, a 19th century military solid rocket pioneer.

4. Pal was looking to keep the budget down. It is not clear why he picked these actors or if Pichel could have gotten better performances. Pichel as veteran actor could have doubled as a character himself. Across town, Lippert Pictures made a film to piggyback on Destination Moon‘s publicity campaign, Rocket Ship X-M, (where M is Moon). The screenplay by Dalton Trumbo is full of scientific howlers but the story is not as awful as the 1953 Cat Women of the Moon (or other Z movies of the 50s). On a budget of $94,000, Lippert hired good actors like John Emery and Noah Beery, Jr., as well as Lloyd Bridges and Hugh O’Brian. These guys sure would have been an improvement in Destination Moon even with the same dialog.

Heinlein found out about Rocket Ship X-M through a letter from L. Ron Hubbard. Hubbard claimed to be working on that film, though as far as can be determined, he had nothing to do with it [2,3]. How Pal’s film became known to Lippert is not known, although Heinlein had informed Forest J Ackerman about Destination Moon‘s greenlighting in May of 1949. Destination Moon seems to have become known to fans in the LA area in early 1949. It is odd that Lippert even put up $94,000 when all the majors were nervous about a movie Moon-trip story.

5. Winchell Chung at the web site Atomic Rockets has the best summary, with some massaged numbers to make the dynamics of Luna work better. I think he is the first to notice that using water as the reaction mass requires a liquid core nuclear reactor [18].

6. Heinlein in his prose was an accomplished storyteller and good at writing dialog. The novelette Destination Moon has better dialog, though not polished. The basic story feels guided by Heinlein’s hand but in a very strict narrative. He wanted a no-nonsense story line and that is what results.

In the novelette Destination Moon, ‘domes’ are found, supposedly Russian. I doubt this was in any version of the screenplay. Nazis on the Moon became a pop-idea that would not die. This is what the film Iron Sky (2012) was about.

7. Pal must have had a weak spot for this; in the 1955 film Conquest of Space, O’Hanlon inserted a televised musical number by Rosemary Clooney to the space station.

8. Ley finally got some money from Pal by selling him the rights to Conquest of Space, which had no film story in it [4]. Conquest of Space seems to have had no technical adviser, although director Byron Haskin is quoted as saying he talked to Werner von Braun a lot [21]. However, there is a picture of Pal, Bonestell, Ley and director Haskins around a large table with Ley expounding on technical issues.

The movie Conquest of Space, aside from the narrative, is an odd mix of von Braun, Ley and Bonestell’s popularization of space flight by way of the Collier’s series, von Braun’s The Mars Project and the book The Exploration of Mars. An April 1954 issue of Collier’s (the last issue of the spaceflight series) had a full realization of the 1948 von Braun Mars Project. Ley and Bonestell were pressuring von Braun to make a book of this. However, von Braun wanted to redesign the expedition, taking the Mars fleet down from 10 ships to 2. The movie Conquest of Space took it down to 1. Most of the rest of the design was from the Collier’s series: The space station, the spacesuits, the orbital ferries and the Mars ship. Somehow some retrorockets got added to the Mars ship; I doubt that was von Braun’s design.
I could not find a single reference that related what Wernher von Braun thought of Destination Moon.

Except for Destination Moon and Conquest of Space, I don’t think a single spaceflight movie in the 1950s had a technical adviser.

9. Reading several essays about Destination Moon it is strange how Heinlein’s involvement is either not mentioned or touched upon only briefly. The Moon flight film would have never been made if it had not been for Ley’s introduction to Lang, after Heinlein broke with Lang, and if Heinlein had not persisted with the story and screenplay in 1948.

10. Arthur C. Clarke had mentioned atomic propulsion in 1945 [22] and had written a novel, Prelude to Space in 1947 [23], which used a nuclear powered two stage vehicle.

References

1. Destination Moon, screen play by Rip Van Ronkel, Robert Heinlein and James O’Hanlon, from a novel by Mr. Heinlein; directed by Irving Pichel; produced by George Pal and released by Eagle-Lion. (Premiere: June 29 1950).

2. Patterson, William H., Jr. 2010. Robert A. Heinlein in Dialogue With His Century: 1907-1948 Learning Curve. An Authorized Biography, Volume I.

3. Patterson, William H., Jr. 2014. Robert A. Heinlein in Dialogue With His Century: 1948-1988 The Man Who Learned Better. An Authorized Biography, Volume II.

4. Gail Morgan Hickman, The Films of George Pal, A. S. Barnes and Co., Inc., 1977.

5. Jared S. Buss, Willy Ley: Prophet of the Space Age. University Press of Florida, 2017.

6. Willy Ley and Chesley Bonestell, The Conquest of Space. New York: Viking, 1949.

7. Willy Ley, Rockets, Missiles, and Space Travel, Viking Press, 1954.

8. Jack Hagerty and Jon C. Rogers, Spaceship Handbook, ARA Press, October 1, 2001.

9. Ron Miller, The Dream Machines, Krieger Pub Co, July 1, 1993.

10. Robert Heinlein, Shooting Destination Moon, Astounding Science Fiction, July 1950.

11. Robert A. Heinlein, Rocket Ship Galileo, Scribner’s, May 1, 1947.

12. Alford Van Ronkel, Screenplay for Destination Moon,
https://www.scripts.com/script/destination_Moon_6783

13. Robert A. Heinlein, “Destination Moon,” Short Stores Magazine, September 1950.

14. Robert Serber, “The Use of Atomic Power for Rockets,” Project Rand, RAD-2, July 5 1946.

15. R. Cornog, “Rocket Computations,” NEPA-508, August 3, 1946.

16. L. R. Shepherd and A.V. Cleaver; “The Atomic Rocket 1 and 2,” Journal of the British Interplanetary Society, volume 7, no. 5 and 6, 1948.

17. H. S. Tsien; “Rockets and Other Thermal Jets Using Nuclear Energy,” Chapter 11 of The Science and Engineering of Nuclear Power, volume II, edited by Clark Goodman, Addison Wesley Press, Cambridge, MA., 1949.

18. Winchell Chung, Luna from Destination Moon, http://www.projectrho.com/public_html/rocket/

19. Bradley Schauer, “The Greatest Exploitation Special Ever: Destination Moon and Postwar Independent Distribution,” Film History An International Journal 27(1):1-28, 2014.

20. https://www.youtube.com/watch?v=wOZyoJKltKI

21. Thomas Kent Miller, Mars in the Movies: A History, McFarland, 2016.

22. Arthur C. Clarke, “Extraterrestrial Relays,” Wireless World October, 1945.

23. Arthur C. Clarke, Prelude to Space, World Editions, 1951.

24. Dennis Jenkins, ‘Dressing for altitude: U.S. aviation pressure suits – Wiley Post to space shuttle,” NASA SP; 2011-595, 2012.

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