Tom T Posted June 23, 2011 Share Posted June 23, 2011 Hi everyone, With the increasing amount of full size jets beating the sound barrier i was wondering whether it would be possible to break the sound barrier with a turbine jet and using FPV? Could it be a project for a club or for the forum? Guinness book of records? Thanx Tom Quote Link to comment Share on other sites More sharing options...
PatMc Posted June 23, 2011 Share Posted June 23, 2011 If done the record would probably be slower than the speed taken by the CAA to have model turbine flying banned. Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted June 23, 2011 Share Posted June 23, 2011 hello tom....one of the problems would be trying to oreintate the model at the speed it was going...long before it reached the 'sound barrier'...watch some DS gliders or pylon racers and then take your hat off to the skill involved.....i've watched RC models doing over 200mph and man they sure move....one blink and they will be OOS...... ken anderson ne..1. Quote Link to comment Share on other sites More sharing options...
Solid Snake Posted June 23, 2011 Share Posted June 23, 2011 The shockwave caused by the sound barrier being broken would probably rip the plane to pieces Could always pop down to this place, buy an F-4 and put some 9 Gram servos in place and try and break the sound barrier that way Quote Link to comment Share on other sites More sharing options...
Hogster Posted June 23, 2011 Share Posted June 23, 2011 Traveling at 12 miles a minute, I would think the fact that the aircraft would be out of range in about 2 secs might make this a little beyond the capabilty of model and pilot. Quote Link to comment Share on other sites More sharing options...
David Gilder Posted June 23, 2011 Share Posted June 23, 2011 And you all seem to have missed the point of using FPV. You would effectively be IN THE AIRCRAFT!!! Not trying to watch it from afar!!! I have to agree though.. It would take no time for the CAA to get restrictions in place for power output on the turbines!!! Dave Quote Link to comment Share on other sites More sharing options...
Hogster Posted June 23, 2011 Share Posted June 23, 2011 Posted by David Gilder on 23/06/2011 19:35:37:And you all seem to have missed the point of using FPV. You would effectively be IN THE AIRCRAFT!!! Not trying to watch it from afar!!! I have to agree though.. It would take no time for the CAA to get restrictions in place for power output on the turbines!!! Dave You maybe able to see where your going but you would still be in danger of going out of radio range very quickly dont you think? Your eyes may be effectively in the aircraft but your controls aren`t!!!! Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted June 23, 2011 Share Posted June 23, 2011 Besides, FPV / BMFA rules insist that FPV models are flown with a buddy lead system, and the observer must be able to maintain eye contact with the model at all times - try that with a model doing the speed of sound....'twould be out of sight in seconds Quote Link to comment Share on other sites More sharing options...
Spice Cat Posted June 23, 2011 Share Posted June 23, 2011 I believe the speed record is currently held by a glider at something like 430mph. Is it theoretically possible for a glider to achieve Mach 1 I wonder??? Or apart from speed, what about an altitude record for either powered on non powered model??? Quote Link to comment Share on other sites More sharing options...
PatMc Posted June 23, 2011 Share Posted June 23, 2011 Posted by Spice Cat on 23/06/2011 20:04:32: Or apart from speed, what about an altitude record for either powered on non powered model??? Look up Maynard Hill's world records. Quote Link to comment Share on other sites More sharing options...
Spice Cat Posted June 23, 2011 Share Posted June 23, 2011 Posted by PatMc on 23/06/2011 20:09:27: Posted by Spice Cat on 23/06/2011 20:04:32: Or apart from speed, what about an altitude record for either powered on non powered model??? Look up Maynard Hill's world records. Gotcha. If I have read this correctly, 16,690' is the record but set in the 60's unless someone knows different. Quote Link to comment Share on other sites More sharing options...
PatMc Posted June 23, 2011 Share Posted June 23, 2011 He broke his own record at least a couple of times after that.Maynard Hill's autobiographyAFAICS the latest was in 1971 26,980ft but he also held or holds the record for model glider altitude at 3660ft set in 1966. I have a copy of the Feb 1967 FM magazine with the construction article on the glider - the Bong Boomer & to be honest it's a pretty basic, inefficient looking design from the performance POV but sufficient for the job required of it. Quote Link to comment Share on other sites More sharing options...
Ben B Posted June 23, 2011 Share Posted June 23, 2011 It's been done. Streaker . Supersonic and guidable. Not exactly small though! LOL! Quote Link to comment Share on other sites More sharing options...
PatMc Posted June 23, 2011 Share Posted June 23, 2011 Posted by Ben B on 23/06/2011 21:37:52:It's been done. Streaker . Supersonic and guidable. Not exactly small though! LOL! Err, AFAICS it's sub-sonic. Quote Link to comment Share on other sites More sharing options...
Tom T Posted June 23, 2011 Author Share Posted June 23, 2011 Tim wouldn't they grant you permission if you did it somewhere remote, like the Sahara Desert? I read in the paper that a man flew a RC plane across the Atlantic in about 38hrs, he took it off and then stuck it on GPS. (i would add the link but it wont let me) So its definitely possible for the plane to go out of sight as he was in Ireland and the model was in America flying on its own. He did have technical faults but that was a few years ago now there is even more advance technology (never the less it still completed the crossing). Could be worth looking into, if anyone was interested? Thanx Tom Quote Link to comment Share on other sites More sharing options...
John Privett Posted June 23, 2011 Share Posted June 23, 2011 Tom, "a man" was the very same Maynard Hill mentioned by Pat above, and a prolific record-breaker in the 1960s. His transatlantic attempts - and ultimately successful flight - were documented "live" on the TAM website. And watched, as it happened back in August 2002 and 2003 by quite a few of us on here. He was actually at the launch site in Newfoundland, the landing in Ireland was performed by Dave Brown. Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted June 23, 2011 Share Posted June 23, 2011 What about this some going for a model Quote Link to comment Share on other sites More sharing options...
Tom T Posted June 23, 2011 Author Share Posted June 23, 2011 Hi John I thought that Maynard Hill landed, shows that i don't read articles well enough. I wish i was into the hobby earlier to of watched this take place but i would have only been 5 near 6 if it was in 2002. Sad to hear that he has passed away (did i read that right)? I agree Frank, i just need to go get $230 millions dollars first ,LOL! Do you think we could make a cheaper one at around £1000-£5000? It would have to be one for when i'm earning a living. Thanx Tom Edited By Tom is RC mad! on 23/06/2011 23:19:55 Quote Link to comment Share on other sites More sharing options...
John Privett Posted June 24, 2011 Share Posted June 24, 2011 Yes Tom, you read it right that Maynard passed away earlier this month. It was quite nerve-wracking just following the progress over the 'net back in 2003. Especially when contact was lost with TAM5 for several hours and everybody thought it had ditched. And then there were doubts due to the length of time it was taking that the fuel would last out... What it must have been like for those directly involved, waiting back in Canada, I can't imagine! There was a link posted recently, maybe here, maybe somewhere else to some video shot in Ireland when TAM 5 appeared overhead and was landed. I wasn't aware that any video of it even existed until it was posted a few days ago. Well worth watching I reckon. Here it is... Quote Link to comment Share on other sites More sharing options...
Tom T Posted June 24, 2011 Author Share Posted June 24, 2011 Thanx for the video John! Very interesting to see that after reading about it! I read that they landing with 2 oz of fuel left in the tank when it was supposed to of run out long before then. Very lucky and took great engineering to be able to do this! Tom Quote Link to comment Share on other sites More sharing options...
Former Member Posted June 24, 2011 Share Posted June 24, 2011 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Spice Cat Posted June 24, 2011 Share Posted June 24, 2011 It's just a shame that Maynard Hill could not have hopped on a plane to Ireland and taken control again to land Tam 5. Now that would have been cool. Quote Link to comment Share on other sites More sharing options...
Brian Cooper Posted August 24, 2011 Share Posted August 24, 2011 I must admit I have had a dream (for years) to break the sound barrier with a radio controlled model aeroplane. The only thing stopping me is financing it. . . It ain't going to be a cheap project. B.C. Quote Link to comment Share on other sites More sharing options...
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