The following is a PM sent to me by Cees Wester from the Netherlands. I posted it here as it contains some helpful info. Thanks Cees, Ralph

" Hello Raph,

Just as me, you are "Old School", so, maybe you already know this and checked it in detail.

Tankpressure isn't constant but related to the power level of the motor on any moment, read RPM.
This way the tankpressure has to be equal to the inside header pressure near the connection.
Equalisation is easy in the beginning of the fllght because the amount of air in the tank is stll low. After some while there is a bigger equalisation airflow needed throught the line between header and tank. Throttling back, from tank to header, throttlihg up from header to tank.
For this reason it is important the bore of the header connection (tap) for the tank is still full bore, not blocked. In other words, the bore cannot be biig enough!.

There can be a small chance the tank pressure isn't yet on right value on moment you pull up the plane in vertical.

So the question is, and maybe you already asked yourself, "Is the bore of the tankconnection still full bore Ralph? "

Taurus Flyer



I write you this PM because I am under moderator status for a long time and posts of me must have been checked by a moderator before publicing.
Result is, it can take weeks, or they never show up, and that won't help you.

If you find this post valuable you may copy it in your thread if you want.

Merry Christmas to you and your son, and Happy Landings!

Cees Wester
The Netherlands "