[Milsurplus] C131 Yardeny tuner Flight Test in TBM

[Bill Strangfeld]

Navy report of 8-44 flight test of R-26 with C-131 Yardeny spot tuner
and ART-13 in TBM-1 with writeup and nice photos.

What did a dozen hard landings do?  See, at:

http://www.twinbeech.com/images/Radio/yardneyARC5/YardneyinTBM.pdf