archybean Posted March 13, 2008 Share Posted March 13, 2008 im planning on displaying an sr-71 just after it has touched down, with the drag chute attached and inflated. any ideas/suggestions on keeping its shape? id thought of hairspray... Quote Link to post Share on other sites
Rdrunner Posted March 13, 2008 Share Posted March 13, 2008 Here is an article on how to do the drag chute done by QC Tan on ARC HTH im planning on displaying an sr-71 just after it has touched down, with the drag chute attached and inflated. any ideas/suggestions on keeping its shape? id thought of hairspray... Quote Link to post Share on other sites
rjwood_uk Posted March 13, 2008 Share Posted March 13, 2008 yea iv made one following QC Tan. not for an aircraft, just to test it out. It works pretty darn well ...as you can see in his pics. a really good thing to do would be to shorten the hydrolics on the nose gear to show it "leaning" into the stop...if you get what i mean. Richard Quote Link to post Share on other sites
longmc Posted March 14, 2008 Share Posted March 14, 2008 Hey, great question! I was just thinking about that for a Phantom build! Quote Link to post Share on other sites
Grey Ghost 531 Posted March 14, 2008 Share Posted March 14, 2008 yea iv made one following QC Tan. not for an aircraft, just to test it out. It works pretty darn well...as you can see in his pics. a really good thing to do would be to shorten the hydrolics on the nose gear to show it "leaning" into the stop...if you get what i mean. Richard Would that be accurate with no brakes on the front wheels? Those are what cause a car or bike to compress the front suspension under braking I think. Quote Link to post Share on other sites
rjwood_uk Posted March 14, 2008 Share Posted March 14, 2008 hmmm. but surely the deacceleration would also do it? not sure. any people with jet/chute landing experience shed some light? Quote Link to post Share on other sites
jrallman Posted March 14, 2008 Share Posted March 14, 2008 if anything, it would be more likely that the rear gear would be compressed since the stopping force is a pull from the rear. as an example, if you ride a bike with front and rear brakes, and squeeze the front brakes, the front dives and you go over the handle bars. if you squeeze the rear brake, no dive. Quote Link to post Share on other sites
rjwood_uk Posted March 14, 2008 Share Posted March 14, 2008 but even you if slam on the back breaks you still go forward when you stop because of the kenetic energy. so if the plane is stopping its still strying to go forward so the hydrolics on the front will still compress a bit (i think) dam i dont want to go into phyisics lol. common a jet pilot please read this thread! lol Quote Link to post Share on other sites
longmc Posted March 14, 2008 Share Posted March 14, 2008 (edited) Here's a good one: landing Edited March 14, 2008 by longmc Quote Link to post Share on other sites
rjwood_uk Posted March 14, 2008 Share Posted March 14, 2008 yes! thank you. physics win!! lol. its because the eneregy is still trying to move forwards but it cant. and because their is a moving part on the front landing gear...thats where it goes! so...it compresses a bit! Richard Quote Link to post Share on other sites
KenM Posted March 14, 2008 Share Posted March 14, 2008 yes! thank you.physics win!! lol. its because the eneregy is still trying to move forwards but it cant. and because their is a moving part on the front landing gear...thats where it goes! so...it compresses a bit! Richard Huh? Sorry but the front oleo on that Phantom is fully extended meaning there is little or no weight on it, here it is in it's normal state http://www.airliners.net/photo/Greece---Ai...d=&next_id= But all that aside isn't that a beautifully filthy Phantom. MUST BUILD. Ken Quote Link to post Share on other sites
Grey Ghost 531 Posted March 14, 2008 Share Posted March 14, 2008 I think it depends on where the force is applied as compared to the center of mass of the jet. The 'chute is attached at the top of the fuselage on the F-4 so it tends to pull then nose up. The nose gear compresses during an arrested landing because the hook is at the bottom of the fuselage and the force rotates the mass of the aircraft forward when the pull is low and aft. Quote Link to post Share on other sites
longmc Posted March 14, 2008 Share Posted March 14, 2008 (edited) sorry, Richard. I switched the picture on you. Here's what he was responding to: G landing which does give the impression that the nose is diving slightly. Here's video of a JASDF phantom landing and the nose stays high Ok, here's another: Greek phantoms about 1:20 into it you can see the nose stays high after 'chutes deployed. Edited March 14, 2008 by longmc Quote Link to post Share on other sites
rjwood_uk Posted March 14, 2008 Share Posted March 14, 2008 nice video!! ok then....it would be cool to model it with the nose still up in the air and the main landing gear comptressed lol. but then how small is the landing gear on a 1/72 blackbird? Richard Quote Link to post Share on other sites
archybean Posted March 14, 2008 Author Share Posted March 14, 2008 nice video!!ok then....it would be cool to model it with the nose still up in the air and the main landing gear comptressed lol. but then how small is the landing gear on a 1/72 blackbird? Richard i'm actually going to model it in 1/48...shave off a little bit perhaps. Quote Link to post Share on other sites
rjwood_uk Posted March 14, 2008 Share Posted March 14, 2008 oh ok. testors kit? Richard Quote Link to post Share on other sites
longmc Posted March 14, 2008 Share Posted March 14, 2008 Yeah, I've got a pic of an SEA painted F-4G taxiing in pulling it's 'chute. I've been playing around with the idea of doing that. Quote Link to post Share on other sites
archybean Posted March 15, 2008 Author Share Posted March 15, 2008 oh ok.testors kit? Richard yep, testors kit...should be a fun build, im really looking forward to seeing a 30" long blackbird sitting on my table Quote Link to post Share on other sites
rjwood_uk Posted March 15, 2008 Share Posted March 15, 2008 thats quite big! Richard Quote Link to post Share on other sites
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