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Thread: Thrust vs turbine size
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Old 07-27-2014 | 03:04 AM
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Originally Posted by mikes68charger
Ok I got a quick question.

P80 at 21 pounds of thrust vs smaller merlin 90k at 21 pounds of thrust

While the merlin is lighter

I was thinking of edf were you can make a 110mm fan mwke the same thrust as a 127mm fan but the 127mm fan makes more thrust through its range due to larger fan size

So my p80 looks like it has a bigger compresor fan so if weight is not a issue what would make you choose one over the other?
I don't know about the Merlin but all my small wrens make all the power in the last 20% of the RPM range. My P80 still made a good amount of thrust at mid RPM,s. So I would assume that a smaller turbine spinning at a higher RPM would do the same
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