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Old 09-21-2010 | 03:12 PM
  #1600  
kahloq's Avatar
kahloq
 
Joined: Jan 2006
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From: Fort Collins, CO
Default RE: CMP BF109F BUILDING THREAD


ORIGINAL: dornhoffer

Hello All,
I haven't posted in this forum for a while and thought I would include a short video from last weekend. My wife took this video from her camera so the quality isn't great, but it is interesting. My main problem with this plane has been vibration of the Saito 180. I finally fixed the muffler issue, but during this flight, I heard a low frequency tone and brought the plane around for a landing. I found I couldn't idle down and had to land the plane fast. All went OK, but when I pulled the cowl, I found one mounting bolt gone, one blind nut stripped and one broken. I was flying with a very loose engine indeed! Anyway, I reworked the mount by tapping a couple aluminum bars, bringing the bolts up through engine with two blind nuts on each bolt. These will not vibrate out. This is the plane that I modified with the landing gear in scale location, linked the flaps to one servo, and I have very happy with it. I have never had one nose over and landing are straight forward. I did move the CG to the foward mark and reduced elevator to 30% throw and 30% expo and this works well for me. The plane is very good flier. Takeoffs require a slow throttle advancement with right rudder, but other than that, it is pretty straight forward. http://www.youtube.com/watch?v=pjL-Phr2i6E
Nice vid. I painted mine with the black tulip front end also....but didnt come out as good as yours.
I have a saito 180 in my ESM ME-109E and it flies well, but for this CMP...due to the vibration issues some reported with how the motor ends up getting mounted, I opted to make it electric.
Not quite the same sound, but with the big fat bladed turnigy cherry wood 18x12 prop, it kinda sounds like theres an IC engine in it.