Avtech

crowenterprises.com has great belt sets for a reasonable price, also some interesting advice, having seen some of the worst belts in service in GA aircraft. Also wearing a helmet just makes good sense, any sources for suitable ones ( not big bone domes) ?

the 2 blade airmaster is 9kg, complex design and it feathers too. good up to 120hp

A C172, F172XP or C172RG perform nothing like a modern LSA aircraft, the knowledge attained by Beech, Mooney and Flottorp was lost. Cessna and Piper didn't evolve into much. I believe the developments by Airmaster, Pipistrel, Risen and many others have aviation evolution back on course. My opinion is that ground adjustable prop provides simply a choice. The auto transmission in my car has been improved over the last 40 years, firstly with hydraulics and recently with electronics. I feel that should happen with aircraft transmissions.

Hi , bit of an interest of mine, 1950 B35 Bonanza with a Flottorp electric controllable prop. The prop pitch was driven by a small electric motor mounted on the engine, thru a squash plate and rods. The control was by up/dn switch and constant speeding by a radio type valve driven electric controller mounted below the instrument panel (quite large) it was superseded on later models by the Hartzell hydraulic prop, simpler and reliable for the time. A little research and the Mooney Mite M18 came to light with a identical setup but manual. You simply turn a knob to change pitch. With the advent of reliable powerful DC motors and modern electronics, I believe these concepts have a lot of potential for propeller control on LSA aircraft.

Several years away from aviation, back again flying a Jabiru.