did you mean 9s2p when you said 6s2p? 5320/28 will be happy between 8-10 lipo cells.

CC80 is only design for upto 6s use although i've run 7s with it (void warranty). I have been using Jeti 77 opto for all 9s uses. 2 things I don't like about jeti is that it lacks soft start and warranty is for 2 month only. New CC HV series is just what I've been waiting for.

For your funtana, I would go with 19x10e or 20x10e prop 20x8e hovers better but it feels too slow. tanic 9s2p 5000mah pack should be fine. You can go with Jeti 77 opto or New ( not yet avail ) CC HV 85 ( noe bec ) and you will also need a Ultimate BEC 6v version for receiver power.

yes 9s2p is what I ment, sorry bout that.

ill need to look into the new cc85, looks like a winner. Just I want to get this plane going for the imac season so whaevers avalable at the time ill get.

Oh just saw the video and i have to say awsome flying, I really enjoyed the high alfa KE.

again apreciate the help.

matteo:


fresh f90 video

http://www.bsc-engineering-usa.com/f...2005-06-17.wmv



It has about 250 flights now. The background noise is my generator charging my lipo packs.

nice vid.

So that's 250 flights on the battery also?
How does it land for you?

Very nice!

BoneDoc:

1st pack 115 charges
2nd pack 75 charges
3rd pack 60


It lands while holding 1 click down elevator

I had 4 flights today with apc 22x10e which is much much quieter that 22x10 pro zinger as it should. I believe I have achieved my goal on proper cooling on both ESC and the motor.

Temp measurement after 10min flight shows 88deg with 72deg ambient temp. While ESC recorded 99deg. The motor actually felt cold to the touch.
4 flights with non modified CF gear with no problems.

This plane, although tracks better and flies lighter than my PW extra, has some snapping tendensies which makes me a little nervous. Hope to get more acquainted with its habits during next few flights.


The final intake opening has a concentric cylinder with gap of 3/8inch causing all incoming air to directly affect the motor temp.

Red,

Like what I said in the other 260 thread, try adding more expo to your ailerons. I don't really have that much problem with that anymore. That being said though, I still get a little nervous when I'm close to stall speed on normal flight with power low.

bonedoc:

I fly 1 rate only with 70-80 expo on elev 60-70 rudd, 60-70 aile. the deflection on my planes are about 45-55deg rudd, 45-50deg elev, 30-40 aile.

I usually pull out of maneuvers around 25-75ft which leaves no room for recovery from any snap. I am keeping the plane higher until i learn more of its characteristics.

Congratulations on all your work and research... a job well done!

I had 4 flights yesterday. No problem with stock gears but the snap ghost is still haunting me. It does not hinder flying itself but gets you nervous enough and gets you on your toes during a dive and subsequent pull out.

try making sure that when you pull out you're prefectly level and not putting any ailerons. Option #2, add more expo to your high rate ailreons, option #3, try pullin out with low rates and see if you get snapping there.

From my observation what happens is during sharp pull outs, the AOA exceed the critical angle, causing the plane to go into a stall. Add a touch of ailerons to it, and you've got yourself a spin.