whirlwind 74RV in taildragger?
 

was talking to the guys at whirlwind, and they have new prob called 74RV, which is 74inches, would this be a problem on a taildragger?

my interp of the info on vans site is that the 72 inch is rec for this application.

thought from the group?

das

What model plane? On my RV8 I have 72" and can't imagine one more inch making much difference as there is plenty of ground clearance.

I fly a 74 inch hartzell on my TW rv7, no problems with ground clearance.

thanks, I'm a RV7 tailwheel

das

74 inch Hartzell RV 7 works for me over 1000 hrs

Larry

No problem at all with the 74RV in an RV-8 taildragger. I originally had the 200RV 72" blades and swapped to the 74RV, no complaints.

For people flying the 74RV, curious what engine and HP you're running with?

Not to worry...
 

Mine is a 78-inch Hartzell composite constant speed. Still plenty of clearance.

Whirlwind 72" vs the 74"rv
 

Any performance comparisons between these two props - actual or hearsay?

I've had both the 200RV and 74RV on my IO-375 powered RV-8. I haven't done any credible performance comparisons, but gut feel is that performance is generally similar, 74RV seems to accelerate, climb and slow down better, 200RV might have a slight edge in cruise speed.

The 74RV looks faster on the ground and gets a lot more attention than the 200RV did.