How do you correct for tuck in KE flight?
10-11-2006, 06:44 PM
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RE: How do you correct for tuck in KE flight?
Check your CG and your aileron settings. Some planes will pull towards either the canopy or gear depending on design/trim. Most of it can be trimmed out in a properly designed plane.
Gary
Gary
10-12-2006, 02:34 PM
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RE: How do you correct for tuck in KE flight?
I found this doing a search on the net.
Pitching in knife edge flight | Same as dihedral test.
-----------------------------------------------------------------------
A. No pitch up or down | A. No adjustment needed.
B. Model pitches up (to canopy) | B. Alternate cures.
| 1. Move the CG aft.
| 2. Increase the wing incidence.
| 3. Drop the ailerons.
C. Model pitches down (to belly) | C. Reverse the above
-----------------------------------------------------------------------
Looks like you need to move cg forward, decrease the wing incidence, and/or raise the ailerons.
Pitching in knife edge flight | Same as dihedral test.
-----------------------------------------------------------------------
A. No pitch up or down | A. No adjustment needed.
B. Model pitches up (to canopy) | B. Alternate cures.
| 1. Move the CG aft.
| 2. Increase the wing incidence.
| 3. Drop the ailerons.
C. Model pitches down (to belly) | C. Reverse the above
-----------------------------------------------------------------------
Looks like you need to move cg forward, decrease the wing incidence, and/or raise the ailerons.
10-12-2006, 03:31 PM
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RE: How do you correct for tuck in KE flight?
As Pilot says ,raise the ails. a bit, you'll have to experiment. This will cause you to have to put in some up trim to fly level. This up trim will keep it from tucking once you find the magic spot.
10-13-2006, 04:19 AM
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RE: How do you correct for tuck in KE flight?
For me I will aways adjust the CG to find a compromise, if that does not help then its a design issue. For tuck towards the BELLY it means the plane may be TAIL HEAVY. If it tucks towards the canopy then it may be NOSE HEAVY.
