In article Xql0c.644866$X%5.57699@pd7tw2no,
Ed Majden wrote:
The Mosquito fighter/bomber had rather exceptional performance for an
aircraft of that type. Even faster than the early Spitz! It was fast with
relatively long range and was used as a pathfinder, night fighter, recon,
and insurgent bomber. Was it ever considered as an escort fighter for the
daylight American B17's?

Not as far as I know - for the very good reason that the Mosquito was
not a good day fighter. Manoeverability was poor by the standards of
single-engined fighters (or even the better twin-engined fighters).

How would it have stacked up to a ME109?

Badly, if it couldn;t use its speed to escape - and in an escort role this
was not an option. A fair few Mosquitoes were lost to 109s - not enough to
require it to be escorted itself, but it certainly wasn't suitable for the
daylight escort role.
It was, however, effective against german night fighters - but there's
a big difference between the Ju-88, Do-217 and Bf-110 and the 109 or 190.

--
Andy Breen ~ Interplanetary Scintillation Research Group
http://users.aber.ac.uk/azb/
"Time has stopped, says the Black Lion clock
and eternity has begun" (Dylan Thomas)