Hi John,

I too use Jettronic valves on the gear ( 3 of them) as I have it set up to keep the main gear doors closed when the gear is down. Not scale, (except for the Goshawk) but, the gear can compress enough on a "heavy" landing to knock the main doors off so, I played it safe and kept them closed.

I orginally set up with a UP2 and UP4 to do the same thing but, although it worked, the gear didn't go up with any "authority" and if you had too much airspeed built by the time you retracted, they would often not make it all the way up and hang down. Hence the change to the Jettronic set up. Now they firmly come up.

Mike