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  #11  
Old 07-07-2022, 09:30 AM
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Ez2cDave Ez2cDave is offline
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Quote:
Originally Posted by Bill
Toy aeroplanes? You design toy aeroplanes?


Bill


That quote is from "The Flight of the Phoenix", isn't it ?

Great movie !

Dave F.

https://www.youtube.com/watch?v=8iQW_FQpdvc
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  #12  
Old 07-07-2022, 01:41 PM
Bob Austin Bob Austin is offline
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Saw this over at Space.com and it reminded me of this discussion


Mars sailplane prototype soars during early-stage tethered flight test in Arizona




https://www.space.com/mars-sailplan...ars-flight-test
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  #13  
Old 07-08-2022, 02:08 AM
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Quote:
Originally Posted by Ez2cDave
That quote is from "The Flight of the Phoenix", isn't it ?

Great movie !

Dave F.

https://www.youtube.com/watch?v=8iQW_FQpdvc
Yes, it's the 1965 original (in which Paul Mantz lost his life, making "one last, low pass" in the Phoenix, to get a better sequence of it on film [it ground-looped]--this is solemnly mentioned at the end of the movie). Also:

*That* was great acting--from all three of them--in that scene! Their body language, their looks of growing doubt and fear that they were going to try to escape in a radio-control model airplane designer's creation, capped by pilot Frank Towns' (Jimmy Stewart) horrified and dejected comment to navigator Lew Moran (Richard Attenborough), after Heinrich Dorfmann (Hardy Krüger) walked out: "He's crazy, Lew...he builds toy airplanes." There's a lot more to realistic acting than saying one's lines believably (although they were all old pros at that too, of course), and:

As David Gerrold--who wrote the screenplay for the 1967 original Star Trek episode "The Trouble with Tribbles"--wrote in his book "The World of Star Trek" (Star Trek, like "The Flight of the Phoenix," is a drama)--not verbatim, but this is close: "Drama requires no props, special locations, or special costumes. All you need is a blank stage, with two characters who are in strong opposition, and that is drama. Period." AS WELL:

*Here* (see: https://www.youtube.com/results?sea...+of+the+Phoenix ) is the entire movie. A bit of unnerving trivia about the Fairchild C-82 Packet (and its similar-looking successor, the Fairchild C-119 Flying Boxcar [links to both are here: https://en.wikipedia.org/wiki/Fairchild_C-82_Packet & https://en.wikipedia.org/wiki/Fairc...9_Flying_Boxcar ]): they were unable--except perhaps if empty of any payload, and with minimal fuel--to remain airborne if one of the two engines failed, or if one propeller stripped its gears (my father knew people who'd flown both, and he wished that retrofitting both otherwise-excellent aircraft with more powerful turboprops would be done, to eliminate their underpowered flaw), and:

When I was quite young, several of these aircraft occasionally flew over Miami--including our neighborhood--at low altitude, spraying DDT, to kill an insect that ruined the guava fruit. When we heard the spray planes coming, we stood outside and never took our eyes off them until they left, because if one lost an engine (or a propeller) over us, we'd have had a fiery crash--and tons of liquid DDT--perhaps on our block or even house! (There was no nearby open place for them to make a dead-stick landing in an emergency.)
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Last edited by blackshire : 07-08-2022 at 03:27 AM.
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  #14  
Old 07-08-2022, 02:42 AM
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Quote:
Originally Posted by Bob Austin
Saw this over at Space.com and it reminded me of this discussion


Mars sailplane prototype soars during early-stage tethered flight test in Arizona




https://www.space.com/mars-sailplan...ars-flight-test
Thank you, Bob, for posting the article link and the picture of this straight-winged, tailless Mars sailplane design! One design factor--not the only one--that attracts NASA to the tailless configuration, as there have been other tailless Mars aircraft proposals (this also applies to deployable/un-foldable boost-gliders and boost-sailplanes) is a smaller number of unfolding parts, which increases deployment reliability. Now:

In order to explore Mars (or Venus, Titan, etc.) a sailplane or a motor glider has to be folded up to fit inside a regular aeroshell-type heat shield. After the high-temperature portion of the atmospheric entry process, the aeroshell's parachute would deploy from its aft cover, and its forward heat shield would be jettisoned soon afterward (just as with landers and rovers). After decelerating to an appropriately safe airspeed, the folded-up aircraft would be deployed from the parachute-supported aft aeroshell cover, on a reeled-out cable (again, like the larger rovers, but without a skycrane rocket stage [that component not being needed for these "aero-rovers"]). Then:

At that point, the aircraft would unfold and its joints would lock together, at the end of its cable. When this process was completed, a squib would fire, separating the aircraft from the cable--with its nose pointing downward. It would then pull up gently into level flight, leaving the aeroshell aft cover, under its parachute, to land separately on the planet's (or the satellite's) surface; in fact, it could be equipped with its own instrumentation and radio equipment, to serve as a simple lander--and as a fixed weather station, which would be helpful to the aircraft--in its own right. The fewer unfolding-and-locking joints the aero-rover (they're also called aerobots, in the planetary science literature) aircraft has--which favors tailless designs, which also take up less space inside an aeroshell--the more likely it is that all of the fewer joints will unfold and lock successfully (ditto for such rocket-boosted gliders).
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http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
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  #15  
Old 09-11-2022, 10:21 PM
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Something from the past!
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  #16  
Old 09-12-2022, 11:40 AM
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Quote:
Originally Posted by Chris_Timm
Something from the past!
Yes, I remember that (West) German Project 621 (Dornier Do 122) recoverable sounding rocket design of the early 1960s (see: https://www.google.com/search?q=Wes...chrome&ie=UTF-8 ). It was to have been a reusable--up to six times--liquid propellant sounding rocket. It made successful air-dropped glide tests at the Italian sounding rocket range (and missile range) at Salto di Quirra, on the Island of Sardinia (see: https://www.google.com/search?q=sal...sclient=gws-wiz ); during the ESRO years, many Skylark sounding rockets were launched from there.
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
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  #17  
Old 09-12-2022, 12:51 PM
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Quote:
Originally Posted by Chris_Timm
Something from the past!


YANDEX translation of the photo caption . . .

Dave F.
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  #18  
Old 09-12-2022, 01:12 PM
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Quote:
Originally Posted by Ez2cDave
YANDEX translation of the photo caption . . .

Dave F.
Interesting--does YANDEX do the translation directly, via OCR (Optical Character Reading)?
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
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  #19  
Old 09-12-2022, 01:22 PM
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Everything I could find on the DORNIER Do 122 ( aka - PROJECT 621 ).

Dave F.
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  #20  
Old 09-12-2022, 01:23 PM
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The rest . . .

Dave F.
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