Tags: airframe, boom, compsite, pusher, twin
Richard. Good luck for the weekend, hope the weather holds up.
3dr lockups seem to be when plugging stuff about but I dont think I did anything dodgy. Dont know why todays telemetry was so poor, nothing changed from day before. Cant see the mission planner when Im in the field so didnt know it was bad until I had finished. My set is an Aurora9 2.4. Can get all 6 modes with switches and it displays the mode on the TX screen - brill.
I think all the issues with CF were when people put the antennas inside like you could with balsa or GF. Both my 3DR and 2.4 are on the outside and the GPS has a good view of the sky through thin GF. First flight it had great connection all the way around. Suspect I might have had an antenna issue yesterday but its OK now. You may have spotted the rubber duck direct on the PCB. That was just for testing, I made up an SMA cable so I could fix it on the outside.
Short mission today to test the new atto volt/amp sensor.
Short grass – luxury.
is that the same engine from that video with high grass? do you have the takeoff speen on both of them? on the first it takes off almost stalling, on the last one it goes up like a rocket! congratulations!
also, thanks for the tip on the gravity cutter. i was already thinking about doing it, i'll try to make this tomorrow. by the way, how many kg do you use for the 15cm/min cut? my styrofoam is 33kg/m³, and the wing length is 600mm. i'm thinking in the use of water bottles as weight, so i can add or remove water easily to calibrate.
ah, one more tip. about the airspeed, try to make a fuse on its base, so if it hits the ground, the tube goes out without bending.
on mine, i fixed it to the nose with 8 rare-earth magnets. 4 glued on the fuse, 4 with hotglue and a heatshrink tubing on the pitot, this way it's removed for transportation and easily placed for flight, and in the case of a crash, i hope the magnets go apart and the tube stays intact. i'll send a picture tomorrow.
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