alt.energy.homepower

ive been building a minature genorator based on a small rc car engine
and have almost finished, but before i start it up poroperly i have a
couple of questions that worry me

the engine is rather basic and has no govenor. but the load on the
genorator will always be a switch mode power supply (either 15 in
energiser nimh battery chargers which ive opend up and am pretty sure
a smps or a laptop 12v car power supply.

so how can i match the engine power to the load needed. becasue when
charging the load will be 120w yet at full throttel the engine can put
out 200-300w. my fear is that the speed will rise and so will voltage
until it become too great for the smps to handel. is their any risk
and how can i match the load, either for fear of damagign equipment or
to save on fuel?

incase it makes a ny diffrence im using a brushless plane motor so
effectivly a 3 phase motor which i rectife. how can these things be
so powerful in such a small space for =A320 i got a 1kw motor that is
about as big as a walnut. howcome i dont see these things and the also
teeny pwm speed controllers being used for other projects ect

any help would be greatly appreciated