breaking the sound barrier
02-11-2009 | 05:02 AM
#51
Senior Member
My Feedback: (2)
RE: breaking the sound barrier
I'd be happy to volunteer to remotely pilot a model to very high speeds, pending approval by the powers that be...
In other words, the only way I can think of to break the sound barrier without the model pulling an insane amount of G force, is to pilot it from an actual Supersonic capable aircraft acting as a "pace vehicle".
Having had my carcass travelling at Mach 1+ at a relatively low altitude, I can say with reasonable certainty that things are occuring at a very fast rate.
As far as propellers go, you simply are not going to go super in a prop driven airplane and have it survive...
In other words, the only way I can think of to break the sound barrier without the model pulling an insane amount of G force, is to pilot it from an actual Supersonic capable aircraft acting as a "pace vehicle".
Having had my carcass travelling at Mach 1+ at a relatively low altitude, I can say with reasonable certainty that things are occuring at a very fast rate.
As far as propellers go, you simply are not going to go super in a prop driven airplane and have it survive...
06-02-2009 | 04:01 PM
#52
Senior Member
My Feedback: (12)
Joined: Dec 2001
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
From: Castle,
OK
RE: breaking the sound barrier
Ok here's what you do. First build the plane. It wouldn't look like a scale F-15 with missles and pilot figure, it would more resemble a round or oval fuselage cruise missle. Use carbon fiber tubes like the high power rocket guys. Long tube, thin wings, sharp nose, delta wing.. I dunno, whatever works best with supersonic airflow. Get an expert aerodynamic guy to tell you what would go out of control when it passes mach 1.
Install the turbine engine system with the most thrust available. Or two, side by side. In between them, install one of those high impulse, high altitude rocketry engines, radio operated igniter of course.
A radio communications system, so several people can listen and communicate voice on the same channel.
A long, secluded, wide open, unpopulated area.
3 or 4 seasoned RC turbine pilots.
3 identical computerized radio control transmitters , 72mhz PCM, all set up and programmed the same and on the same channel.
And here we go... Space out the pilots 1 mile apart with a caller between each pilot. The PCM will use failsafe and will be set to leave all controls at position of last good signal. Pilot 1 takes the plane off flies it upwind and high till its pretty small, then turns downwind and kicks it in the guts. Full power and a nice dive. As he passes himself he levels the plane and lets it continue to fly wide open. When it passes over the position of the first caller, he gives a signal. At that time, pilot 1 switches off his radio and pilot 2 switches his on.
The radio will lockout and maintain current everything, for a brief second until it immediatly sees good signal from pilot 2 who, after having control, clicks on the rocket engine. It is during the control of this pilot, it should go supersonic. Pilot 2 maintains a straight and level heading, and the next tradeoff is made in the same manner to pilot 3. The rocket motor will have burned out, and it is up to pilot 3 to get the plane into a climb or turn or whatever to slow it down and land.
This is sort of odd for beginners forum, but it's sort of "what if" anyways, and all in fun.
<br type="_moz" />
Install the turbine engine system with the most thrust available. Or two, side by side. In between them, install one of those high impulse, high altitude rocketry engines, radio operated igniter of course.
A radio communications system, so several people can listen and communicate voice on the same channel.
A long, secluded, wide open, unpopulated area.
3 or 4 seasoned RC turbine pilots.
3 identical computerized radio control transmitters , 72mhz PCM, all set up and programmed the same and on the same channel.
And here we go... Space out the pilots 1 mile apart with a caller between each pilot. The PCM will use failsafe and will be set to leave all controls at position of last good signal. Pilot 1 takes the plane off flies it upwind and high till its pretty small, then turns downwind and kicks it in the guts. Full power and a nice dive. As he passes himself he levels the plane and lets it continue to fly wide open. When it passes over the position of the first caller, he gives a signal. At that time, pilot 1 switches off his radio and pilot 2 switches his on.
The radio will lockout and maintain current everything, for a brief second until it immediatly sees good signal from pilot 2 who, after having control, clicks on the rocket engine. It is during the control of this pilot, it should go supersonic. Pilot 2 maintains a straight and level heading, and the next tradeoff is made in the same manner to pilot 3. The rocket motor will have burned out, and it is up to pilot 3 to get the plane into a climb or turn or whatever to slow it down and land.
This is sort of odd for beginners forum, but it's sort of "what if" anyways, and all in fun.
<br type="_moz" />
06-03-2009 | 01:08 PM
#54
Thread Starter
Banned
My Feedback: (2)
Joined: Nov 2008
Posts: 207
Likes: 0
Received 0 Likes
on
0 Posts
From: coral springs, FL
RE: breaking the sound barrier
You can do all that, or you can skip so many steps by just getting a good FPV system and a remote control that goes 5 to 6 miles. - this part is actually easy to do. The hard part is building the plane/rocket system
ORIGINAL: kriegsmacht
Ok here's what you do. First build the plane. It wouldn't look like a scale F-15 with missles and pilot figure, it would more resemble a round or oval fuselage cruise missle. Use carbon fiber tubes like the high power rocket guys. Long tube, thin wings, sharp nose, delta wing.. I dunno, whatever works best with supersonic airflow. Get an expert aerodynamic guy to tell you what would go out of control when it passes mach 1.
Install the turbine engine system with the most thrust available. Or two, side by side. In between them, install one of those high impulse, high altitude rocketry engines, radio operated igniter of course.
A radio communications system, so several people can listen and communicate voice on the same channel.
A long, secluded, wide open, unpopulated area.
3 or 4 seasoned RC turbine pilots.
3 identical computerized radio control transmitters , 72mhz PCM, all set up and programmed the same and on the same channel.
And here we go... Space out the pilots 1 mile apart with a caller between each pilot. The PCM will use failsafe and will be set to leave all controls at position of last good signal. Pilot 1 takes the plane off flies it upwind and high till its pretty small, then turns downwind and kicks it in the guts. Full power and a nice dive. As he passes himself he levels the plane and lets it continue to fly wide open. When it passes over the position of the first caller, he gives a signal. At that time, pilot 1 switches off his radio and pilot 2 switches his on.
The radio will lockout and maintain current everything, for a brief second until it immediatly sees good signal from pilot 2 who, after having control, clicks on the rocket engine. It is during the control of this pilot, it should go supersonic. Pilot 2 maintains a straight and level heading, and the next tradeoff is made in the same manner to pilot 3. The rocket motor will have burned out, and it is up to pilot 3 to get the plane into a climb or turn or whatever to slow it down and land.
This is sort of odd for beginners forum, but it's sort of "what if" anyways, and all in fun.
Ok here's what you do. First build the plane. It wouldn't look like a scale F-15 with missles and pilot figure, it would more resemble a round or oval fuselage cruise missle. Use carbon fiber tubes like the high power rocket guys. Long tube, thin wings, sharp nose, delta wing.. I dunno, whatever works best with supersonic airflow. Get an expert aerodynamic guy to tell you what would go out of control when it passes mach 1.
Install the turbine engine system with the most thrust available. Or two, side by side. In between them, install one of those high impulse, high altitude rocketry engines, radio operated igniter of course.
A radio communications system, so several people can listen and communicate voice on the same channel.
A long, secluded, wide open, unpopulated area.
3 or 4 seasoned RC turbine pilots.
3 identical computerized radio control transmitters , 72mhz PCM, all set up and programmed the same and on the same channel.
And here we go... Space out the pilots 1 mile apart with a caller between each pilot. The PCM will use failsafe and will be set to leave all controls at position of last good signal. Pilot 1 takes the plane off flies it upwind and high till its pretty small, then turns downwind and kicks it in the guts. Full power and a nice dive. As he passes himself he levels the plane and lets it continue to fly wide open. When it passes over the position of the first caller, he gives a signal. At that time, pilot 1 switches off his radio and pilot 2 switches his on.
The radio will lockout and maintain current everything, for a brief second until it immediatly sees good signal from pilot 2 who, after having control, clicks on the rocket engine. It is during the control of this pilot, it should go supersonic. Pilot 2 maintains a straight and level heading, and the next tradeoff is made in the same manner to pilot 3. The rocket motor will have burned out, and it is up to pilot 3 to get the plane into a climb or turn or whatever to slow it down and land.
This is sort of odd for beginners forum, but it's sort of "what if" anyways, and all in fun.
06-03-2009 | 01:32 PM
#55
Senior Member
Joined: Mar 2003
Posts: 6,544
Likes: 0
Received 0 Likes
on
0 Posts
From: Garland, TX
RE: breaking the sound barrier
ORIGINAL: alexedit
You can do all that, or you can skip so many steps by just getting a good FPV system and a remote control that goes 5 to 6 miles. - this part is actually easy to do. The hard part is building the plane/rocket system
You can do all that, or you can skip so many steps by just getting a good FPV system and a remote control that goes 5 to 6 miles. - this part is actually easy to do. The hard part is building the plane/rocket system
06-03-2009 | 03:11 PM
#56
Member
Joined: Mar 2008
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
From: Nashville, TN
RE: breaking the sound barrier
...even full scale aircraft are not permitted to fly supersonic over the continental U.S. due to the pressure wave and resultant boom. that being said, i think the government has already accomplished breaking the sound barrier via remote control because nowadays most fighter jets are test flown via remote control before an actual pilot ever sits in the cockpit.
06-23-2009 | 12:22 AM
#57
Senior Member
My Feedback: (2)
RE: breaking the sound barrier
ORIGINAL: kriegsmacht
Ok here's what you do. First build the plane. It wouldn't look like a scale F-15 with missles and pilot figure, it would more resemble a round or oval fuselage cruise missle. Use carbon fiber tubes like the high power rocket guys. Long tube, thin wings, sharp nose, delta wing.. I dunno, whatever works best with supersonic airflow. Get an expert aerodynamic guy to tell you what would go out of control when it passes mach 1.
Install the turbine engine system with the most thrust available. Or two, side by side. In between them, install one of those high impulse, high altitude rocketry engines, radio operated igniter of course.
A radio communications system, so several people can listen and communicate voice on the same channel.
A long, secluded, wide open, unpopulated area.
3 or 4 seasoned RC turbine pilots.
3 identical computerized radio control transmitters , 72mhz PCM, all set up and programmed the same and on the same channel.
And here we go... Space out the pilots 1 mile apart with a caller between each pilot. The PCM will use failsafe and will be set to leave all controls at position of last good signal. Pilot 1 takes the plane off flies it upwind and high till its pretty small, then turns downwind and kicks it in the guts. Full power and a nice dive. As he passes himself he levels the plane and lets it continue to fly wide open. When it passes over the position of the first caller, he gives a signal. At that time, pilot 1 switches off his radio and pilot 2 switches his on.
The radio will lockout and maintain current everything, for a brief second until it immediatly sees good signal from pilot 2 who, after having control, clicks on the rocket engine. It is during the control of this pilot, it should go supersonic. Pilot 2 maintains a straight and level heading, and the next tradeoff is made in the same manner to pilot 3. The rocket motor will have burned out, and it is up to pilot 3 to get the plane into a climb or turn or whatever to slow it down and land.
This is sort of odd for beginners forum, but it's sort of "what if" anyways, and all in fun.
<br type="_moz" />
Ok here's what you do. First build the plane. It wouldn't look like a scale F-15 with missles and pilot figure, it would more resemble a round or oval fuselage cruise missle. Use carbon fiber tubes like the high power rocket guys. Long tube, thin wings, sharp nose, delta wing.. I dunno, whatever works best with supersonic airflow. Get an expert aerodynamic guy to tell you what would go out of control when it passes mach 1.
Install the turbine engine system with the most thrust available. Or two, side by side. In between them, install one of those high impulse, high altitude rocketry engines, radio operated igniter of course.
A radio communications system, so several people can listen and communicate voice on the same channel.
A long, secluded, wide open, unpopulated area.
3 or 4 seasoned RC turbine pilots.
3 identical computerized radio control transmitters , 72mhz PCM, all set up and programmed the same and on the same channel.
And here we go... Space out the pilots 1 mile apart with a caller between each pilot. The PCM will use failsafe and will be set to leave all controls at position of last good signal. Pilot 1 takes the plane off flies it upwind and high till its pretty small, then turns downwind and kicks it in the guts. Full power and a nice dive. As he passes himself he levels the plane and lets it continue to fly wide open. When it passes over the position of the first caller, he gives a signal. At that time, pilot 1 switches off his radio and pilot 2 switches his on.
The radio will lockout and maintain current everything, for a brief second until it immediatly sees good signal from pilot 2 who, after having control, clicks on the rocket engine. It is during the control of this pilot, it should go supersonic. Pilot 2 maintains a straight and level heading, and the next tradeoff is made in the same manner to pilot 3. The rocket motor will have burned out, and it is up to pilot 3 to get the plane into a climb or turn or whatever to slow it down and land.
This is sort of odd for beginners forum, but it's sort of "what if" anyways, and all in fun.
<br type="_moz" />
06-23-2009 | 03:18 PM
#58
Member
Joined: Jun 2009
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
From: not applicable, UNITED KINGDOM
RE: breaking the sound barrier
ORIGINAL: jimmyjames213
its impossible for a prop to spin faster than the speed of sound, if it were to the forces would be insane and the prop would break
so i think it would be impossible (or really really hard) for a prop plane to break the speed of sound since its prop couldnt.
its impossible for a prop to spin faster than the speed of sound, if it were to the forces would be insane and the prop would break
so i think it would be impossible (or really really hard) for a prop plane to break the speed of sound since its prop couldnt.
Ive had prop tips go supersonic. Scared the crap out of me when it happened.
