For the last 2 years I have taken part in Race for Rhinos in Botswana. Great fun but I want to move myself up the results table this year. It?s not Reno - it?s a handicapped navigation exercise over about 320nm on each of 2 days. Major mods to the aircraft are not permitted so I am trying to come up with a couple of ?tweaks? that might give me a knot or 2 - bearing in mind that an extra knot over the 2 days equates to about 1.5 minutes......
- ballast in the baggage hold. Reduces trim drag by shifting CG aft. However, ups the gross weight.
- rig ailerons (say) 1 degree up. Less lift produced in the outboard wing section and more inboard so reduction in tip vortex drag.
- I have Slick mags with a fixed 25 deg advance. Retime to (say) 27. Possible downside - increased CHT and possible starting problems.
Comments/analysis from the team welcome ......
- ballast in the baggage hold. Reduces trim drag by shifting CG aft. However, ups the gross weight.
- rig ailerons (say) 1 degree up. Less lift produced in the outboard wing section and more inboard so reduction in tip vortex drag.
- I have Slick mags with a fixed 25 deg advance. Retime to (say) 27. Possible downside - increased CHT and possible starting problems.
Comments/analysis from the team welcome ......