What is the connection between rpm and throttle?

[huchanronaa]

I have observed that if the rpm is lower, the mosquito is difficult to take off even if the throttle is increased.

In some aircraft, the rpm and throttle are linked

[rkk01]

Manual prop pitch control on the British a/c

[Olddog]

You might want to take a look at this. The principle applies  to all consistent speed propellers 

https://www.boldmethod.com/learn-to-fly/aircraft-systems/how-a-constant-speed-prop-works/ 

[grafspee]

Mosquito uses constant speed props. Prop lever changes set rpm. But mechanism responsible for rpm need certain things to be present in order to take any effect, if plane sits on the ground idling moving rpm lever changes nothing.

No matter boost used, prop lever always full forward for take off.

Edited October 6, 2021 by grafspee

[Hiob]

You can think of the propeller pitch/rpm like the transmission in your car.

For high power needs you want to be in low gear/high rpm. That's why you take-off and fight in low gear/high rpm and cruise in high gear/low rpm for more efficiency.

And to stretch the analogy even further - you want to shift down/rpm up and then hit the throttle, not the other way round!

[Mercury_1965]

@Hiob nice explication

[Cutter]

I've just been reading about this on another post on the forum: 

tl;dr version go to http://www.avweb.com/news/pelican/Pelicans-Perch-16-Those-Marvelous-Props-182082-1.html for the suggested explanation. It worked it for me!