United States, VA, Fluvanna
Joined Jan 2011
48" KFm-4ward scratchbuild
I built a KFm-4ward on yesterday and just flew it today.
I put a ExceedRc Rocket motor on it with a 7x5 Master Airscrew prop and a 1800mah 3S lipo. This setup gives me over 200W at 20-25A. The motor can take 30A but max efficiency is only up to 18A. Balances nice and flies smooth on low rates. In this video I'm flying at 50% aileron and 60% elevator so it flares nicely at low speed landings as you can see at the end of the video. On high rates (100% throw) it will turn on a dime but I don't want that much throw when getting to know my planes.
It is a gentle giant on low rates and very maneuverable on high rates.
Here's a video of todays flight and some pictures
This is a nice flyby filmed Dec 17
|Category||Thread||Thread Starter||Forum||Replies||Last Post|
|Build Log||KFm-4ward 48" wing||ombudsman||Flying Wings||93||Nov 24, 2012 10:09 PM|
|Discussion||Experiments with KFm airfoil on 'Elf' DLG glider||JetPlaneFlyer||Foamies (Scratchbuilt)||118||Jun 30, 2012 11:46 PM|
|Discussion||KFm airfoil 48" Flying Wing||gatorlynch||SPAD - Simple Plastic Airplane Designs||31||Jun 04, 2012 07:38 AM|