EB 29 groundloop

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romsey
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EB 29 groundloop

Post by romsey » Tue Jun 30, 2020 1:10 pm

Hi
I cannot keep the EB 29 straight on takeoff with aerotow in any sort of crosswind. Is there a trick/technique I should apply?
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tiberius
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Re: EB 29 groundloop

Post by tiberius » Tue Jun 30, 2020 1:26 pm

Other than usual rudder inputs try keeping the stick back to keep the tail wheel on the ground until almost at flying speed.
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wickid
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Re: EB 29 groundloop

Post by wickid » Tue Jun 30, 2020 1:27 pm

Keep the wings level. It is easier to do if you use full negative flaps for the initial part of the ground roll. Cross wind limit according to the manual for takeoff and landing is around 15 kph for most gliders!
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SAN-Soarer
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Re: EB 29 groundloop

Post by SAN-Soarer » Tue Jun 30, 2020 2:32 pm

However, there is a bug in the EB29. The wings often tip from one side to another back and forth, sometimes like crazy even. :shock: In fact that makes it almost impossible to take of some times. For example, it the runway isn't 100% even. So there is probably some problem with the ground handling physics or something like that.
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wickid
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Re: EB 29 groundloop

Post by wickid » Tue Jun 30, 2020 4:03 pm

SAN-Soarer wrote:
Tue Jun 30, 2020 2:32 pm
However, there is a bug in the EB29. The wings often tip from one side to another back and forth, sometimes like crazy even. :shock: In fact that makes it almost impossible to take of some times. For example, it the runway isn't 100% even. So there is probably some problem with the ground handling physics or something like that.
Problem with the scenery usually. The airport needs a G object to have a smooth surface. Some scenery creators don't include this.
PH-1504, KOE

MrHerisson
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Re: EB 29 groundloop

Post by MrHerisson » Tue Jun 30, 2020 5:19 pm

Good advice here (above)
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Bre901
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Re: EB 29 groundloop

Post by Bre901 » Tue Jun 30, 2020 5:24 pm

wickid wrote:
Tue Jun 30, 2020 1:27 pm
Keep the wings level. It is easier to do if you use full negative flaps for the initial part of the ground roll. Cross wind limit according to the manual for takeoff and landing is around 15 kph for most gliders!
If the runway is long enough and the towplane is strong enough, you can also keep the airbrakes partially extended until you gain some controls efficiency (retract them before you set the flaps to sightly positive)
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tiberius
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Re: EB 29 groundloop

Post by tiberius » Tue Jun 30, 2020 7:24 pm

I’m interested in the theory behind partially open speed brakes during initial takeoff roll. I know it’s sometimes necessary to hold the wheel brake at the beginning of a launch and for some gliders that means full air brake but I don’t understand how partial air brakes helps early aileron authority.
Last edited by tiberius on Wed Jul 01, 2020 8:07 am, edited 1 time in total.
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OXO
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Re: EB 29 groundloop

Post by OXO » Tue Jun 30, 2020 7:27 pm

Deflects the air outwards to give more aileron authority
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tiberius
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Re: EB 29 groundloop

Post by tiberius » Tue Jun 30, 2020 11:19 pm

Simple but effective explanation, thanks. Is that simulated in Condor2?
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OXO
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Re: EB 29 groundloop

Post by OXO » Wed Jul 01, 2020 8:28 am

I believe so. I did ask for it to be in 2.0.0
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romsey
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Re: EB 29 groundloop

Post by romsey » Wed Jul 01, 2020 9:06 am

Thank you everyone.
I now have tonight's homework and I don't feel such a dill :) :)
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Sprunga
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Re: EB 29 groundloop

Post by Sprunga » Thu Jul 02, 2020 12:45 am

I'm just wondering if you have the auto rudder on?
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