Fuel Numbers for my "Speed Demon" (not)

[Miles Offshore]

Have been playing with my new navman and gotten some interesting results for you inboard guys if you like. 350 magnum 270 hp PCM inboard and I am currently turning an old ,tired 17"/15 pitch wheel-with the following results- 3000 rpm's 20 knots at 9.5 to 10 gallons an hour. 3200 rpm's 22 knots at 12-12.5 gallons an hour. 3800 rpms 25 to 27 knots at 20 gallons an hour. Funny how my new tach only reads WOT at 3800. The old tach read 4200 rpms. Boat tachs have always IMO been P.O.S.
The 17/15 is not real efficient but is a great trolling wheel because I can troll real slow during rockfish season. I believe a 16"/17 pitch is what originally came on the boat. I am going to reprop it soon and am still debateing on the 16"/17 pitch 3 blade or a 16/16 4 blade both cupped.I think both my economy and speed will increase preety much although that slow trolling speed will be gone. Most of my rockfishing anyways is from November into february so I can change the wheel if need be.

I support the "BIG FISH CATCH AND RELEASE THEORY"

craig