MonkeyClaw
Member
It has been mentioned that a longer rotor allows a slightly higher speed before blade sailing. At the same time, it takes more energy to get the longer rotor up to that speed. Given the same amount of energy, the longer rotor won't get to the same RRPM as the shorter rotor. This doesn't seem to be an issue, however, as the engines being used seem more than powerful enough to reach an appropriate RRPM.
What is generally the limiting factor for reaching a higher RRPM when prerotating? I've heard some mention that the thrust overpowers the brakes. Couldn't this be fixed by changing the gear ratio of the prerotor? I'm mostly curious, as I've seen some say they can get to 300 RRPM while others are pushing pretty hard if they get to 150.
What is generally the limiting factor for reaching a higher RRPM when prerotating? I've heard some mention that the thrust overpowers the brakes. Couldn't this be fixed by changing the gear ratio of the prerotor? I'm mostly curious, as I've seen some say they can get to 300 RRPM while others are pushing pretty hard if they get to 150.