It works perfectly on the jacks but in the air it seem to lag the other doors by a considerable time.  I have noticed that when operating the gear on the jacks that the pressure builds slowly to the maximim.  This maximum is not reached, as you would expect, until the last door is closed.

 

I have pressure gauges on the system for high/low circuits so I can see what happens there but I suspect that the sequence valve which operates the door, once the gear is up, is maybe the culprit.  In the case of the main gear there is a fine line on the adjustment to avoid trying to push the top skin off the wing.  The valve when under pressure requires more than hand pressure on the operating plunger to work.  I think that I have it set too fine and that it does not open fully causing the door to lag.the other doors.  This may be the problem with the nose gear doors.  Also the fact that all is well on the ground leads me to think that aerodynamic loading maybe a contributory factor in both the nose and main doors.

 

Maybe the answer for the nose gear is to remove the door and with the a/c on the jacks operate the gear whilst watching what goes on in the nose gear well withe sequence valve operation.

 

I am going to look at the sequence valve tomorrow, Monday and if I have anything to report I will post it on the list.

 

Oh by the way I have the outback gear and the hydraulically operated inner gear doors.

 

I will pursue this line of investigatin on the sequence valve but somebody should contact Lancair, I am sure there is an answer in Redmond, if you can get hold of Tim Ong, he is a fount of knowledge.

 

Ian Crowe

C-FKRO