Hi, I visit these forums quite often, but don't post much (as you can probably tell by my post count )... But I have a dilemma...

Anyways, I've got a Bob Parkinson DF Avro Arrow.. I've been building it since last August and up until today, I've tried 6 attempts at a maiden flight. On my 2nd attempt today, i veered off course while in my take-off and clipped out safety barrier causing some pretty extensive damage to the right wing L.E.. Our field is 800' x 80' and it's grass.. Now, all accounts from B.P. say that his planes can, and do, take off from a grass surface. I believe it as I've watched the video for the Regal Eagle F-15 that he manufactures.

So here's my issue.. I'm new to DF jets and I'm getting quite frustrated with the inability to get this plane off the ground, however, I understand after today's crash that patience is a virtue. I have a Rossi .81 installed in the Arrow, and it weighs 11lbs dry. I have 2 11oz Sullivan saddle tanks installed and after balancing correctly, I can't see a reason that this plane doesn't take off. I don't know the thrust of this particular engine, but it's tuned and really screams at full power.

I am running 3" main wheels and a 2.5" nose wheel.

This model requires the Byron pusher system and so that's sort of restrictive in what I can either upgrade or switch too.. Now, would a Rossi 105 be too powerful? Would an OS. 91 w/large head be not powerful enough? Or *should* this Rossi .81 actually work on this model in the conditions that I've described in my post?

I don't want to rush the plane, but we have an event coming up on July 2nd and I *was* hoping to fly at it.

Is there anyone who has an OS .91 w/ Byron setup (pipe and large head) that is looking to sell? If so what price?

Thanks in advance for any and all assistance. I hope I can find out how to get this plane in the air.

Brian.