FMS 1400mm BF-109F Bash and repaint
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Jun 30, 2012
, 10:30 AM
got any foam to bash?
Lake Grove,LI, NY
Joined Aug 2000
Although I may change my mind, it was just too convenient to mount an AXI-4120-20 (465 Kv) (roughly equivalent to a 5055 though they do not make a kv that low yet). The axi prop adapter comes already threaded for the 3mm spinner retention screw. An EMP, Aeolian or Turnigy woulnd need to be tapped in my lathe.
I made a .5" thick X mount extension and glued and screwed it to the existing firewall, though I did have to add a piece to the top side of the firewall for support.
I first glued the cowl on without the right thrust (I don't believe in it) and then routed the hole in the front big enough to pass the motor witht he x-mount installed.
I also (
AND I STRONGLY
reccommend everyone do this regards of motor chosen or cell count) threw away the crap chinese screws that retain the prop to the backplate and tapped the backplate for 4-40 (3mm would be good for the rest of the world). I then installed 1" long 4-40 screws
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cowl mounted WITHOUT right thrust but left in downthrust
1/2" thick nylon X-mount extension glued and screwed to exisiting firewall
axi 4120-20 in place (may get swapped with a 4120-18 if I need more power)
prop screws replaced with 1" long 4-40 . Tapped backplate for screw first.
nice close gap (probably less than .050".