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Old May 01, 2012, 03:17 AM
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High-power Rocket Gliders
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Mike: I use plugged motors. No ejection charge.

Ari.
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Old May 01, 2012, 10:33 AM
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It doesn't look like there's much for kits out there. Any good plans? Or perhaps a mod/kit-bash? I'd love to do some RC rocket/boost gliders.
Old May 01, 2012, 10:50 AM
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I would just convert a topsky mini. I think they are $140 with 2 servos. Would be a bunch of fun on D7s and E6 motors.

Ryan
Old May 01, 2012, 11:58 AM
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Originally Posted by rdwoebke View Post
I would just convert a topsky mini. I think they are $140 with 2 servos. Would be a bunch of fun on D7s and E6 motors.

Ryan
The DLG? Looks nice. Are they hard to pilot at launch? If you put the motor near CG, does the exhaust harm the tail? Looks like the rudder is above and below the wing line.

I'm a bit of a noob here, getting decent at flying a trainer around, but not sure I'm ready for the speed of a rocket launch unless it's mostly self-guiding for the boost.
Old May 01, 2012, 12:26 PM
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Yes, the DLG. Many modern RC rocket gliders use DLG designs/build techniques as a jumping off point.

Here are some older designs:

http://georgesrockets.com/GRP/AOL/GC...en/Raven-7.gif

http://georgesrockets.com/GRP/AOL/GC...son1_Glide.JPG

You would probably not use the vertical tail that comes with the mini topsky ARF but come up with your own vertical.

Don't try to do a RCRG until you are good at regular gliders. DLGs are a great training tool.

Ryan
Old May 01, 2012, 01:50 PM
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Well, maybe the way to go is get the mini topsky and use it as a DLG for a while. Get used to things and think about how to handle the motor.

It looks like the Raven puts the vertical on the tail on the bottom and the motor on top. That seems reasonable..
Old May 01, 2012, 02:05 PM
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Quote:
Originally Posted by ttabbal View Post
It looks like the Raven puts the vertical on the tail on the bottom and the motor on top. That seems reasonable..
Most American performance RC rocket gliders have the motor on top somewhere near or ahead of the CG. Tail goes upside down.

You will also need to build a launch tower. This is an awesome set of plans:

http://georgesrockets.com/GRP/Launch...Tower2011.html

Ryan
Old May 01, 2012, 02:11 PM
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This somewhat simpler version would also be OK:

http://georgesrockets.com/GRP/Launch...der_Tower.html

Ryan
Old May 03, 2012, 02:14 AM
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Would you go with rudder/elevator or aileron/rudder/elevator? Rocket motor on top or bottom?


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I would just convert a topsky mini. I think they are $140 with 2 servos. Would be a bunch of fun on D7s and E6 motors.

Ryan
Old May 03, 2012, 08:56 AM
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I would go rudder elevator. Motor on top.

Ryan
Old May 03, 2012, 10:49 PM
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Just to under stand, why not with ailerons?
Thanks, Eric

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I would go rudder elevator. Motor on top.

Ryan
Old May 03, 2012, 11:26 PM
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Thy won't add a huge amount of benefit and there is a risk of flutter. If this is your first RCRG stay simple.

Ryan
Old May 05, 2012, 12:53 AM
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I've built two flying wing RCRG's using foam and fiberglass.


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Thy won't add a huge amount of benefit and there is a risk of flutter. If this is your first RCRG stay simple.

Ryan
Old May 05, 2012, 06:56 PM
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I've built two flying wing RCRG's using foam and fiberglass.
Then do the ailerons if you want.

Ryan
Old May 06, 2012, 01:27 PM
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I've built two flying wing RCRG's using foam and fiberglass.
Well good for you. Ryans' answers were for ttabbal, by his own admission a noob at the trainer stage. His advice to avoid the added complexity is sound in such cases, although I've seen exceptions. I myself was not one of them, thats how I know.

Richard


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