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Archive for January, 2010
Posted by ODUsurfer | Jan 13, 2010 @ 12:29 AM | 2,976 Views
Background
Well, I've had a Megatech Airstrike (lovingly referred to on the forums as a "Groundstrike") collecting dust in my garage for almost a year now. How I got it is kinda a long story. My elder brother owns a contractor company that, with the mega real estate crash, does foreclosure home clean-outs for banks. You'd be amazed at the stuff these poor people leave in these houses when they get evicted... Anyhow, he found this Megatech Airstrike with a broken wing in the attic of a house, and thought I might want it. -Obviously it's a crap plane, but free is kinda a hard price to beat.

I tried to fly it once, and like many novice pilots I crashed it due to its underpowered overweight bloat. I was in the process of finishing my Eflite Nieuport 17, which flew like a dream, so the Airstrike was put away on a shelf in the garage, never to be touched again... Until Now.

So what do you get when you combine a bored engineer and a crappy RC airplane? A rebuild! -Plus I somehow stumbled on this thread from 2004, explaining how he rebuilt his crappy Airstrike into a very descent little 3-channel trainer. -Fair enough! Time to get to work.

The Rebuild

So I stripped the whole thing down. Radio. Speed control. Servos. Motor. Everything. All that was left was the plastic fuselage, landing gears, and (detached) wings.

The radio, ESC and servos were all packed onto this insanely bulky tray attached to the top of the battery compartment, so I then cut that off...Continue Reading
Posted by ODUsurfer | Jan 07, 2010 @ 07:17 PM | 2,605 Views
Gah, I didn't even mention my Ultrafly Furious in my last post. I'll have to get back to that one. -But in the meantime, I wanted to post up some thoughts about my latest plane, the Mini Speedwing!

Fun little plane!!!! This is my first delta wing, so it's been a big learning curve to fly well. Flying wings don't fly like anything else, so you have to really feel them out.

Building
So I spent a lot of time researching setups for it, and to be safe, I built it almost exactly how they prescribe in the instructions. The biggest decision for me was the motor. I had read about how to build it using a brushless outrunner, and was tempted to go that route, but eventually decided to play it safe for my first delta wing.

Feigao Brushless motor 1208436L. I was seriously considering going with the Feigao 1208428L motor which is essentially the same motor with 28 stator windings instead of 36, resulting in a "hotter" motor that spins faster, and has less overall electrical resistance. (Disadvantage being higher amp draw and heat loads.) The thrust specs are much stronger for the weight, but I decided to stick with what they recommended. Hindsight, I still don't know which would be better... The 436 motor seems to have a descent amount of power on 2 cells (yet won't go vertical or anything), but still seems to get rather warm flying on 2 cells. I'm kinda scared to find out how hot the 428 would have been, especially if I upgrade to 3 cells like I plan...

Spektrum...Continue Reading