My guess is you have a failing vacuum pump. It might have been acting up
then corrected itself during flight once you had full RPM. Even if the
vacuum is below green during idle, it should not take more than a few
seconds to bring the gryos to full speed at takeoff power. I would
definitely have the vacuum system checked out.





(Paul Tomblin) wrote in news:cr8uan$4n2$1
@allhats.xcski.com:

In a previous article, Jon Kraus said:
1. Make sure that I have had the vacuum indicator "in the green" for
several minutes before departing to ensure that the gyros are spooled up.

2. Have the approach for returning to the airport loaded or in standby
just in case you need to return quickly. I did not do this and it added
needless stress loading everything.

It couldn't hurt to have a mechanic look at your vacuum system.