In article ,
(PaulH) wrote:

I believe that most engines have a "power enrichment" device that
enriches the mixture beyond "full rich" on take-off.

1. Is this true for both carburetor and injected engines?

2. What activates it? It it the position of the throttle lever, some
sort of MP differential, or something else?

On the B-24 and B-17 is was throttle position that enabled it.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html