ORIGINAL: rcpattern
ORIGINAL: speedracerntrixie
I realized I hadn't really kept up with this thread. Finished her up a week ago sans color. After the test flight tomorrow I will start adding the trim as time allows. With a 2200 mah RX battery and a pair of Zippy 5000 mah batteries she weighs in at 11 lb 3 oz. Switching out the batteries and a few minor things will get me below 11 lb. So far I estimate I have just slightly less then 800.00 total investment. This includes all the electronics less TX
Very nice. Also keep in mind that the new weight limit for any classes, but Masters and FAI is now 11lb 4oz, so you are technically under.
Arch
I have on the way a 900 MAH Lipoly RX pack that will go up into the motor box as I need a slight CGshift forward. The tail braces are .070 CF tube with nylon clevises CAed in place, can't get much lighter then that. They attach to a nylon fitting but the fittings are attached to the surface with 3/4" 4-40 screws . 10 total so I may be ordereng some aluminum screws. Other then that I can drill the spinner backplate and there is a fair amount of glasswork inside the cowl that can be feather sanded to drop a few grams. I also have replaced the sullivan tailwheel with a plastic hubbed wheel. I am more interested in getting the CG correct then anything else really. She was hands off inverted and was carrying some down trim. She was pulling to the gear on uplines and in knife edge. I would estimate I have to move the CG between 3/8 and 1/2" forward before any other real trimming can begin. I'm not worried about being under 11 lbs other then being able to say I was able to do it with standard building techniques and budget equipment. My goal for this project was that and being able to be in the hunt for some wood at the local level.