gdwyer

Very nice job on the plane. I have the same plane, upgraded to the bisson pitts muffler, installed a 25% tigermoth panel, pilot from aces of Iron, etc.
I had a lot of trouble with the CG, if its even a little bit (10-20mm) forward of reccomended spot, the elevator cant flare it on landing, and had a few prangs that crippled the seagull undercarraige and punctured the wing, but 150g of lead on the tail sorted that out very quickly.
I have since installed robart spring oleos, no more undercarraige worries. I am thinking of changing the tail wheel, looks a bit small as per the kit.
Here is a video of mine flying up in the Wicklow mountains here in Ireland.

http://www.youtube.com/watch?v=7oV_p..._order&list=UL

Lifer

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gdwyer,

Can you verify the c/g you have yours balanced at?

Thanks in advance!

pettit

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Mine balances at 10 CM (about 4") back from the leading edge, measured at the WING TIP!  Not at the fuselage!

Flares great during landing, no tip stall, but will spin nicely and recover within 1/2 turn.

Lifer

My Feedback: (1)

Thank you!!!

Did you ever measure this point at the root?

pettit

My Feedback: (23)

The wing leading edge has a 2" sweep, so this point at the root measured at the fuselage should be about 6".

Lifer

My Feedback: (1)

Thank you again!

I sure miss your articles from RCR.

pettit

My Feedback: (23)

Grab a copy of High Flight. I have been doing reviews for them now for several years.

But not as many as before.

gdwyer

Yes, I have the same CG, 100mm (4") back from the root of the wing, dont be tempted to bring it forward as you might do normally for a maiden etc, it has to be bang on, give the large moment arm of that beautiful tail!

Graham

gdwyer

Sorry! I meant TIP of the wing, apologies for confusion. 150mm at root. G