"I have a shopping list at Vicor with an AC (110-230V) to HV DC (375V) PFC converter and an isolated HV/LV DC/DC converter at 600W. The latter weighs less than 300gr. This would allow to use light weight 2x 0.5mm2 cable and the power is enough for a…"

"At least the user comments at HK told me that there is a heat problem with MinimOSD V0.1 powered by 12V.
Yes, I found mine (acquired from 3DR) to be suspiciously warm, but otherwise I wouldn't have addressed the issue, with probably catastrophic…"

"Gary,
Curiously, the wiki about contra-rotating propellors mentions improved efficiency and increased noise. In practice the sound is different but the noise level is certainly not excessive, and while I'm pretty sure that the bottom props operating…"

"They also didn't use the capabilities of 3D printers to create complex structures that cannot be practically otherwise. I mean, it should be possible to design and print an optimal trellis instead of the traditional solid rib and spar structure."

"[spoilsport]
VFR. Victor Foxtrot Romeo. Visual Flight Rules. :)
Keep in mind that at 3600ft you're flying well inside class G airspace...
[/spoilsport]"

"Tears in my eyes, not from staring into the setting sun but from the sheer beauty.
Alas, just to spoil the fun: keep in mind VFR rules: 1500 meter horz, 1000ft vert from clouds ;-)"

"Now, now. Who'd've thunk the former King of (bad) Clones, Walkera, being cloned ? And who will be cloning the cloned clones next ? :-)"

"The current reliance on PID controllers without considering kinematics such as linear+angular momentum and acceleration,  gyroscopic effects, motor thrust in a theoretical manner has it's limits. Multipilot32F4 / AutoQuad FC and ESC32 may finally…"

"FrSky also makes the Futaba FASST compatible TFR4B. This 4 channel full range rx is quite cheap, small and light and can output CPPM and RSI using the jumper method. It works like a charm with APM2 and my T8FG.
@Veikko: I don't know about the TFR6,…"

" Thanks very much for driving my envy levels beyond what's medically safe ! 
But don't tell me you couldn't reach the Rainbow Bridge ? It's only 50km from Wahweap marina as the crow flies. :-P"

"I thought about this to 'erect' a vertical full wave antenna for 160 meters with a 400V DC power feed.
The tether's weight and proper tensioning during ascent an descent are not trivial, though."

"Thanks !
Just in time for the correct 6 pin header that arrived today from 3DRobotics in a very large padded envelope :) Now that's great customer service, though an email asking whether I really needed it would have saved them some pocket money."