RV-9 floatplane high cylinder temps

[karl]

This is an update on my RV9 floatplane. After putting the louvers and cutting back on the tunnel a couple inches, temps were acceptable. The take off was quite short and landings acceptable. I just changed from my hartzel blended airfoil 72" prop to a MT 210 constant speed( 83") prop. That resulted in taking 15 # off the nose. The results are almost unbelievable. The plane now handles much better and the landing and takeoffs are much better with the weight off the nose. It will get on the step right now and takeoffs into a 8 mph wind with me (230#) and full fuel take around 6 seconds at sea level. That contrasts with around 10 to 12 seconds with the blended airfoil. cruise speed at 23 sq is 138 mph and 150 at 25 sq all at 500MSL. Just wish I had a baggage door to assist in loading it.

[ajay]

Originally Posted by karl

This is an update on my RV9 floatplane. After putting the louvers and cutting back on the tunnel a couple inches, temps were acceptable. The take off was quite short and landings acceptable. I just changed from my hartzel blended airfoil 72" prop to a MT 210 constant speed( 83") prop. That resulted in taking 15 # off the nose. The results are almost unbelievable. The plane now handles much better and the landing and takeoffs are much better with the weight off the nose. It will get on the step right now and takeoffs into a 8 mph wind with me (230#) and full fuel take around 6 seconds at sea level. That contrasts with around 10 to 12 seconds with the blended airfoil. cruise speed at 23 sq is 138 mph and 150 at 25 sq all at 500MSL. Just wish I had a baggage door to assist in loading it.

karl,

Would be very much interested in your thoughts on how an RV10 would handle/perform with floats?

ajay