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Old 12-27-2004, 05:01 PM
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rc bugman
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Default RE: Please Help. Need Senior Telemaster CG

Rodney,

Your challenges are welcome and have brushed away a few cobwebs since we have experimented with this airframe for more than 10 years.

If you build a Sr. Telemaster with the same incidence as the wing as we did a few years ago, you would find that the plane flies identical to the Sr. telemaster ARF or the kit built plan (we have had both types). In this case, the lifting tail is not applying down force.

The reason for the neg incidence in the Sr. Telemaster horz stab is for a gentle dive recovery. Without the neg incidence in the horizonal stab, the plane is much more pitch unstable and has a very nasty dive which becomes worse as speed increases and the dive recovery is not very pleasant. Add a 1.5 degree neg incidence to the horizonal stab (the difference between the wing and stab incidence on the plans) and the plane has pitch stability and recovers from the dive by itself since the neg incidence stab lifts the nose.

Cheers Elson