Vernier Throttle AA5-B
From Bondline
The first time I flew an ILS in IMC in a friend's Bonanza, I knew I had to have one. Very small changes in RPM keep you dialled into the glildeslope. Moreover, the vernier throttle by its nature also encourages slow, gradual power changes, which many feel is good for the engine. In the event that instantaneous full throttle is required for, say, a go-around, the vernier can be overridden by depressing a large center button that bypasses the vernier action.
The 337's for installation of a CableCraft vernier throttle is located at:
http://www.campbells.org/Airplanes/337s/index_Airplanes337s.html
