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Flair Harvard

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David Davis18/01/2020 18:56:57
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3841 forum posts
741 photos

Nearly three years after Ihad fitted the engine to the airframe, I finally got round to maidening the Harvard this afternoon. I had been having some problems with the slow speed running of the engine, an OS 61 FS Surpass, but that was only a question of making a few mechanical adjustments and regulating the control throws on the transmitter, a Spektrum DX9.

I tested the running of the engine on the stand and measured the cg. It was 10mms in front of the recommended position but I finally ran out of excuses and decided to fly it anyway! It was fine, calm and sunny this afternoon but cold at about 7C or 45F. I turned up at the flying field at about a quarter past three. None of my club mates were there but I unloaded the van, filled the tank, started the engine, and took it to out runway. The wind had picked up and I began to have second thoughts, but I comforted myself with the thought that I am a competent and experienced pilot, although my experience with low wing models is not that extensive, besides I had a 10cc fourstroke in the nose so the model should be capable of handling a bit of a breeze.

I placed the model onto our tarmac runway and advanced the throttle, initially the model wanted to tip over onto its nose but I held it. It accelerated and then I watched amazed as the model took off and tracked beautifully in a steady climb. It required no more than a little aileron and elevator trim before it flew beautifully. I didn't try any aerobatics just circuits and eights but it flew beautifully. I've only fitted a 6 oz or 180 cc tank to it so I brought it in to a superb wheeler landing right on the "piste!"

As I was all alone I have no pictures of the occasion bit here's a pictute of the model on the stand, and another of our runway.

Thanks Stevo! laugh

harvard (1).jpg

runway lourdouiex st pierre mac.jpg

Don Fry18/01/2020 19:03:22
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4557 forum posts
54 photos

Happy. Nice runway.

David Davis18/01/2020 19:43:01
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3841 forum posts
741 photos

Thanks Don. Come over and see us sometime, our catering is famous!

fly-navy18/01/2020 23:57:00
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423 forum posts
11 photos

Pleased it went well for you David.yes See it still has my name on the fuselage. smiley

David Davis19/01/2020 04:54:19
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3841 forum posts
741 photos

Indeed it does Fly-Navy, I have made no changes to the model whatsoever other than re-arranging the throttle servo to suit the OS.

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