GreedyMuffin
Petty Officer 3rd Class
- Joined
- Jul 1, 2016
- Messages
- 97
Hi!
Last setup: Alicraft Norwind 18 w/ Mariner 90HP two-stroke 2001. Perfect prop was E.Chance 13.25x17 which gave me about 5500 RPM.
The 90HP had a 2,33:1 gearcase.
Same boat, same everything expect that I upgraded to a 125HP. Got that engine cheap. It is a 2002 modell in even better condition (compression is over 9 bar on all cylinders).
That engine got a 2,07:1 gearcase I believe. Is it possible to calculate which prop will be the best one?
I have the caviation-plate about (lower UW-house plate) 2.5 cm higher than the bottom of the boat. I did that because I wanted a fourblade prop as my goal is the best allaround/economical speed.
I was thinking that a Spitfire 19P fourblade would be nice? Or an Amita 4 19P?
Last setup: Alicraft Norwind 18 w/ Mariner 90HP two-stroke 2001. Perfect prop was E.Chance 13.25x17 which gave me about 5500 RPM.
The 90HP had a 2,33:1 gearcase.
Same boat, same everything expect that I upgraded to a 125HP. Got that engine cheap. It is a 2002 modell in even better condition (compression is over 9 bar on all cylinders).
That engine got a 2,07:1 gearcase I believe. Is it possible to calculate which prop will be the best one?
I have the caviation-plate about (lower UW-house plate) 2.5 cm higher than the bottom of the boat. I did that because I wanted a fourblade prop as my goal is the best allaround/economical speed.
I was thinking that a Spitfire 19P fourblade would be nice? Or an Amita 4 19P?