Joined
·
157 Posts
Greetings All, A few people have commented that the prop on my "new" boat looks a bit on the small side. I cannot do the calculations as I do not know the gearbox ratio. The engine is a Perkins 6354 fitted with a velvet-drive gearbox V-drive. The boat is ashore for a few more months, so I can"t do the sums on the water. Can I calculate the ratio with a strobe on the shaft? Any ideas you clever people out there? BECKS