KR> N891JF update, and propeller choices matter!

2017-06-12 Thread Mark Langford via KRnet
I swapped props on the 2180cc VW Friday (both Sterbas)adding 2 more inches of pitch (54x50 -> 54x52). In back-to-back tests, the added pitch gained me 7 mph (TAS) at WOT at 9500' while dropping 90 rpm. At 7500' and my favorite 2180cc VW rpm of 3150, I gained a whopping 14 mph TAS at the s

KR> N891JF update

2014-11-03 Thread Wayne
> KR> N891JF update > Mark Langford ml at n56ml.com > Sun Nov 2 22:52:56 EST 2014 > The Cessna drivers were awe-struck... > -- > Mark Langford I think that says it all.. Wayne

KR> N891JF update

2014-11-02 Thread Mark Langford
KRnetHeads, At the risk of posting most of today's messages, I wanted to update the ignition problem on N891JF that kept me from flying to Chino. Joe and I both were unimpressed with the tiny spark that you almost had to imagine that you were seeing and hearing at the spark plug. I think it was