http://www.rcgroups.com/forums/showthread.php?t=671324
Based on my experience with that fan, the 2030 3500kv motor you suggest would
give poor performance. If you don't want a lot of thrust it might do, but I
estimate you'll only get about 200g of thrust.I tried the 2040 4800 kv motor
from uh in the fan and it give lots of thrust (500g+) but the amp draw is a bit
too high (28A) The motor could hold it with a heatsink and thermal paste applied
(AND cooling after flight to avoid heat soak) but it's really pushing the
limits. Recently I purchased a HXT 2435 4400 kv motor for the fan and this is the
way to go I think. The motor fits the fan and supplied adapter (2mm) perfectly
and produces 370g thrust at 17A on a 3s lipo. Don't mind the advertised 3mm axis
on the motor, it comes with a 2mm axis (UH have strange measuring tools)
The Tomhe Quick Build Eurofighter weighs in at 400g (without a 3S 1300 Lipo), it currently has a 4800KV motor. I installed this into my Tomhe Eurofighter replacing the 6x4 2200Kv prop pusher. A few static tests show that the plane will push itself vertical from standstill. However i am concerned with blowing the motor if it gets too hot (See above quote). IF this setup manages to fly i would like to twin the EDF setup, seems much better to have x2 exhausts, than 2 for looks alone (and sound). Much like the pusher prop setup, there must be an ideal KV for a EDF55, and so far 4400KV seems to be the only thing close to it, but a few flights with the 4800Kv and we'll see the results from it.
Tuesday, 21 April 2009
Profile to EDF full fuse
EDF55 & 4400KV
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