I¹ve no idea but you might want to file a patent on it real quick! ;o)
On 9/3/09 16:55, "David Winters" <[email protected]> wrote: > During our recent aircraft overhaul, the directional gyro and attitude > indicator got re-plumbed. They were originally in a real tangled octopus. > But, now both come off the same hose using T connectors. Beautifully neat and > simple. > However, now we have a weird new problem. The attitude indicator gets all the > vacuum. Virtually nothing reaches the gyro. This overspeeds the attitude > indicator. > The attitude indicator is at the end of the vacuum hose, and the DG is in the > middle. So, as a test I completely disconnected the DG and left the connector > OPEN. But, even when I COMPLETELY DISCONNECT the DG and leave the hose open > at that T connector, the attitude indicator at the end still gets almost a > full 7 inches of vacuum. (Far too much.) > THIS AIN¹T LOGICAL! There must be some trick to vacuum plumbing that the AI > does not discern, and that I cannot deduce. > Any knowledge to offer? > > Dave Winters > > > > ________________ Alon A2 A-188 G-HARY www.ercoupe.co.uk
