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burkefj's blog
Archive for January, 2009
Sticky: plans links
Posted by burkefj | Jan 06, 2009 @ 12:48 PM | 21,825 Views
Here is my main plans page. These can be flown as pusher parkjets or as rocket boosted gliders. I have personally built and flown all but the shuttle and dynasoar as pusher jets, and have flown all but the Voodoo as rocket boosted gliders.

To build them as a pusher, you just need to fit and install a motor mount for your motor, ply plate etc, and recess it as desired or mount it right at the end, just keeping in mind prop clearance. I usually just make a ply disk, glue in a 2" piece of 1/8" carbon rod in the center and then poke a hole in the depron and glue the ply plate/rod into the end of the foam with foam safe CA+ and it has never failed me.

For rocket boost you need to fit and install a 24mm rocket mount in the tail, and use an appropriate battery for RC power and to meet CG, I use a 2s 800mah eflite battery and that weighs the same as my loaded rocket motor. Most of these I originally build as rocket gliders, and I have made an electric motor pod I can insert into the rocket tube then can fly them as a pusher. The Grayson microjet v3 and an apc 6x4 with 800mah 3s is a good power setup and the 800mah 3s weighs the same as the electric pod so my CG stays the same as with the rocket motor setup with no weight change.

For rocket boost, I prefer the Aerotech RC 24mm case and E-6 RC reloads exclusively as this gives an 8 second burn time, gentle boost, and they are very controllable. I do not have to shift any weight for the CG shift, I use a slightly...Continue Reading