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Did you use right thrust on your 35% sukhoi

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Did you use right thrust on your 35% sukhoi

Old 09-30-2008, 09:35 PM
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husafreak
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Default Did you use right thrust on your 35% sukhoi

I am ready to mount a ZDZ 80 on my 102" Sukhoi, should I build in right thrust, I think it will need it so what did you guys that have them flying do?
Old 10-01-2008, 12:10 AM
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Barry Cazier
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Default RE: Did you use right thrust on your 35% sukhoi

I added about 2 washers worth on mine. I'm flying with a DA100. Seems about right but if I let it build up a bit of speed in a vertical climb it stills pulls to the left. But it's manageable. It hovers nicely and does everything I ask of it. But you'll need some RH thrust in it.
thanks
Barry
Old 10-01-2008, 12:22 AM
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Default RE: Did you use right thrust on your 35% sukhoi

I have 2-2 1/2deg in all mine. I would put in 2 and go from there. I had a 60size pattern ship years ago that was zero deg on everything, I ended up putting right thrust after one day. you can never have the perfect amount of right thrust for all situations, but 2 1/2 seems to be the closest.
Old 10-01-2008, 12:31 AM
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Default RE: Did you use right thrust on your 35% sukhoi

What kind of flying is your primary interest? Fun flying and 3D? Then no right thrust. IMAC you're thing? Then about 1/2 degree or so of down and right may be what you want. Those that fly the upper levels of IMAC may prefer the zero-zero installation.
Old 10-01-2008, 01:09 PM
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Default RE: Did you use right thrust on your 35% sukhoi

Mine ended up about a degree of right thrust and 1/2 degree of down thrust, but I only put that in after I flew it a few times. It flew just fine without any thrust adjustment but was a little better for IMAC type flying after adding the washers. I'm not a real big fan of putting something extra into the design unless I have tried it first. I figure designer should get it pretty close to start with.
Old 10-01-2008, 05:17 PM
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Default RE: Did you use right thrust on your 35% sukhoi

Mixing a little right rudder to throttle is a great way to go also. More throttle, more rudder
Old 10-02-2008, 01:00 AM
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Default RE: Did you use right thrust on your 35% sukhoi

flatspinjim,

Your method is a lot easier to reverse mix out, especially if the reverse of one input is less in the second direction. As an example only, mixing 2% right or left rudder for a power on upline while using a zero degree rudder mix on a power off downline. Using an offfset engine thrust line will always have an effect on a power off downline due to residual thrust developed with a windmilling prop.
Old 10-07-2008, 07:37 AM
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Default RE: Did you use right thrust on your 35% sukhoi

I agree, no offset added to mine just mixed it out so straight in up as well as down lines.

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