Water propelled glider

[Jitish Miglani]

Does anyone have any idea Hw to make water propelled glider??

[Azriel]

Same basic method as a water rocket, but with wings and 'belly' ballast instead of fins and recovery mechanism.

[Brian]

Do you have and questions in particular.
What sort of glider are you thinking of?
Theres a rocket designed to glide http://www.wra2.org/forum/viewtopic.php?f=8&t=427
A glider with a rocket strapped to it http://www.charlesriverrc.org/media/199 ... ocket2.htm
It can be as simple as this http://users.hubwest.com/gordo/waterroc ... #Calistoga It actually works very well, I had a rocket glide very far when one of the fins broke.

[U.S. Water Rockets1]

Does anyone have any idea Hw to make water propelled glider??

The concept that we have experimented with uses a fabric wing like a hang glider in place of the parachute. The wing is hinged at the front to allow it to fold and fit inside the rocket. This is not quite the same as the typical rocket powered glider which uses a fixed wing and fuselage.

[alan-c]

I built a water rocket glider using 2l bottles for the NPL competition, the glider and rocket both flew ok separately but not together. The thrust was below the drag c/line so it just went around in a big loop - so make sure that the thrust is aligned with the drag c/line. The glider was a canard so that the c.g. of the rocket more or less matched the c.g. of the glider. When I test glided the combined glider/rocket the glide angle wasn't too brilliant due to the drag of the rocket "fuselage". I hope this helps,
Alan

[U.S. Water Rockets1]

I built a water rocket glider using 2l bottles for the NPL competition, the glider and rocket both flew ok separately but not together. The thrust was below the drag c/line so it just went around in a big loop - so make sure that the thrust is aligned with the drag c/line. The glider was a canard so that the c.g. of the rocket more or less matched the c.g. of the glider. When I test glided the combined glider/rocket the glide angle wasn't too brilliant due to the drag of the rocket "fuselage". I hope this helps,
Alan

If you used a restricted nozzle on the rocket engine, could you get the thrust down low enough that you could compensate for the off axis thrust using control surfaces? It seems that this would be possible, depending on the plane's configuration.

[alan-c]

I used a 12mm nozzle in the water rocket glider and it still looped. I suppose that with practice it could have been controlled by holding the elevator stick forward - it was radio controlled - but i didn't get any further with that project. If I knew how to post images I have one photo of the WRG which I could post here.

[WRA2]

I used a 12mm nozzle in the water rocket glider and it still looped. I suppose that with practice it could have been controlled by holding the elevator stick forward - it was radio controlled - but i didn't get any further with that project. If I knew how to post images I have one photo of the WRG which I could post here.

Upload the image as an attachment (at the bottom of the posting page you will see an attachment control panel called "upload attachment") which can be used to upload images.

[alan-c]

wra2 admin, thanks for help, water rocket glider picture attached:
Sorry the pic is so large. Rudder/elevator r/c/control, full span flaps activated at max height (it was for the duration contest), about 42" span, 4 x 2l bottles joined base to top so very long. Rocket on its own flew the whole length of the NPL pitch in (I think) 8 seconds ballistic flight. Oh yes, bottles reinforced with glass fibre tape. Might have worked fine with more development.

[U.S. Water Rockets1]

wra2 admin, thanks for help, water rocket glider picture attached:
Sorry the pic is so large. Rudder/elevator r/c/control, full span flaps activated at max height (it was for the duration contest), about 42" span, 4 x 2l bottles joined base to top so very long. Rocket on its own flew the whole length of the NPL pitch in (I think) 8 seconds ballistic flight. Oh yes, bottles reinforced with glass fibre tape. Might have worked fine with more development.

That looks awesome! Nice work on the rocket glider!

[alan-c]

Thanks for the nice comment! One last bit of trivia - the servo bodies are under the cockpit canopy with the servo arms and the whole linkage to rudder and elevator within the fuselage. I think it would have been better with the wing beneath the bottles, as shown in a video in a previous post in this thread. OP, have a go!