Thread: Discussion Plans For Scratchbuilt Foamies
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Old Sep 30, 2008, 06:02 AM
ADB2 is offline
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Build, fly, learn!
Versailles, France
Joined Jul 2008
495 Posts
The Owl-RT 3D Depron lightweight trainer

This is the Owl-RT, wingspan 806mm (31.7"). It is built from 3mm Depron (1 sheet), a spruce spar and various other easy to find materials and components. AUW is 240~280g (8.5~10oz) depending on motor and battery, but can be built as light as 200g if you skip the landing gear and use balsa for the spar. A 100~120W motor is recommended, a properly rewound BW is probably perfect.
A detailed build log, plans and flight reports can be found in my blog here at RCGroups.
The main features of the Owl-RT are:
  • Aerobatics and basic 3D capable.
  • Indoors and outdoors (up to 20km/h winds).
  • Easy and inexpensive to build and repair.
  • Small enough to easily fit on the back seat of my compact car.
  • Can fly very slowly with full control authority.
  • Very gentle stall (nose tips down).
  • Unlimited vertical with the right motor.
  • Good documentation.
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Last edited by ADB2; Oct 03, 2008 at 03:57 AM.
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