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Messages - heli_bee

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PSS / Re: PSS Group build
« on: December 13, 2019, 10:51:09 AM »
I'm liking the Lear Jet idea. Has it been chosen for the mass build?
If not, there is still time to join the PSSA 2020 mass build:

https://www.modelflying.co.uk/forums/threads.asp?t=433

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Slope Soaring / Quark 2M - Back to cutting innocent trees!
« on: April 27, 2015, 10:26:17 AM »
Flew the Quark again yesterday. The winds were 10-15mph and occasionally  25° off the slope.
The model flew well with the elevator expo set to 30%. I will reduce it to zero for the next flight.
Everybody on the slope was surprised at the quality of the slow speed handling and the roll rate  :D
With a couple of mm droop on the ailerons the model climbed very well.

Martin.

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Slope Soaring / Quark 2M - Back to cutting innocent trees!
« on: April 14, 2015, 10:59:47 AM »
Fred,

I had planned on trying to reduce the expo on the controls once I had got comfortable with the flying characteristics. I will reduce the elevator throw a bit and try 30% expo for the next flight.

Thanks,

Martin.

4
Slope Soaring / Quark 2M - Back to cutting innocent trees!
« on: April 14, 2015, 09:25:00 AM »
Fred,

With the benefit of hindsight, the actual amount of down elevator movement to maintain altitude when inverted is not that much, when you think about it.
I am currently using 60% exponential as per the plan!

Martin.

5
Slope Soaring / Quark 2M - Back to cutting innocent trees!
« on: April 13, 2015, 15:35:32 PM »
Fred,

The elevator is the proper profile one - CNC cut.

Martin.

6
Slope Soaring / Quark 2M - Back to cutting innocent trees!
« on: April 13, 2015, 14:57:09 PM »
Hi Fred,

Thanks for the compliments on the colour scheme. It came about because I was using up lots of odds and ends from my covering box. I haven't done more than repair existing coverings for the last ten years so I was pleased with the result! It can certainly be seen.

As to flying inverted, I still need about a half stick of down elevator to maintain level flight. I will try again in lighter wind conditions and may shift the CG back again.

Martin.

7
Slope Soaring / Quark in 2015
« on: April 12, 2015, 19:12:21 PM »
This weekend saw me test fly my Quark. The winds were 25mph gusting 35mph but the model flew, and flew well.

I ended up removing 35 grams of lead from the nose, moving the CG back behind the the plan position. Not sure where it is set right now but with the wing and tailplane at 0:0 incidence the model will continue in a dive and not pull out.



Martin

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