I ask because the boost pump on mine is just that. I always thought it
was part of the difference being turbocharged vs not. It is suppose to
be off for TO and landing, unlike an electric pump. In low it is just
used (never had to) to fix a rough engine or vapour lock. High is a
massive fuel flow that will flood the engine if the mixture isn't moved
almost to the cut off position. High is only to be used in even of an
engine driven pump failure. The rocker switch is also gated to prevent
inadvertant actifation.

John

Paul Tomblin wrote:

In a previous article, The Visitor said:

You call it a boost pump, this is a turbocharged engine?
Was it on high or low?


It's officially just called the "electric fuel pump", as opposed to the
engine driven fuel pump, but we call it "boost pump" for short.