Monday, May 04, 2015

Not So Fast

Took a little trip up to visit my daughter yesterday and thought I'd check performance.  Not good enough.  I seem to have lost about 4 mph, I used to top off around 211 TAS.  Unfortunately, there  are all sorts of variables, the new canard, new overhaul of the engine, not the identical angle of incidence as the old one, new shape wheel pants, completely different prop, etc., so it's difficult to ascertain where the problem lies.

One thing I think I need to look at is the prop speed.  With the old setup I would turn about 3,100 RPM.  Intentionally, we set the new one to top around 2,800 RPM, but with a steeper pitch.

There are some unfinished items on the rebuild.  It needs a good wet sanding and buff, and I need to fabricate the covers that hide the exposed elevator torque tube on the under side of the canard.  I also need to better tweak the mixture and will be installing a new O2 sensor to aid with that.