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The 'What did you do in your workshop tonight?' thread

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She's ready :)

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(sans wheels)
 

Jetpainter

640cc Uber Pimp
One of the guys at the field has been shaming me about not flying my little pylon racer for over a year now, so I decided it was time. The airplane is one I scratch built from my own plan about 20 years ago. Back then it was powered with an O.S. 10 for races we had at my previous club. About two years ago I changed it to electric. I had been flying it on 3S and have been wanting to go to 4S, so the other day I ordered a new battery to try out.

According to the propeller data for the Cobra 2213/12 2000kv motor, the 3S with the 6 x 5.5 prop I'd been running had a pitch speed of 89.4. On 4S with a 5.25 x 4.75 that goes up to 104. I have a 4.75 x 5.5 coming (hopefully tomorrow) that the data says has a pitch speed of 124.8. It hard to say if those numbers are close are just theoretical, but it should be interesting to find out.;)

It's also going to be interesting to see if the 20 year old glue joints, and servos, will hold up to the higher speed too!:lol2:

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