Hi
So...my buddy has a maxum 2300 cuddy with a 5.7 carb and a 21" vengeance prop. Currently he is unsure whether it's a 1.62 or 1.47 ratio....I suspect the former.
Here is a wee competition for the prop experts amongst you...no prizes given except bragging right, I'm afraid ! The question is as follows...kudos to the one who guesses closest...
Current performance and data;
4200rpm @45mph gps with 21" vengeance
He has just bought a high 5 19" prop...what do we think the likely results will be, with regards to rpm and speed ?
No cheating with prop calculators now !
My predictions are that he will get further into the proper rpm range (4400-4800)...perhaps even at the top end or over and run about 47mph.
Over to you guys....results will be posted within the week
So...my buddy has a maxum 2300 cuddy with a 5.7 carb and a 21" vengeance prop. Currently he is unsure whether it's a 1.62 or 1.47 ratio....I suspect the former.
Here is a wee competition for the prop experts amongst you...no prizes given except bragging right, I'm afraid ! The question is as follows...kudos to the one who guesses closest...
Current performance and data;
4200rpm @45mph gps with 21" vengeance
He has just bought a high 5 19" prop...what do we think the likely results will be, with regards to rpm and speed ?
No cheating with prop calculators now !
My predictions are that he will get further into the proper rpm range (4400-4800)...perhaps even at the top end or over and run about 47mph.
Over to you guys....results will be posted within the week