|
|
#1
03-31-2011, 10:30 PM
|
|||
|
|||
Performance numbers
Since it came up again in two more PM's this week, here are my performance numbers and info.
'72 Seafari 20' w/ 2006 Mercury 90 ELPT Optimax that weighs 376 lbs, transom mounted. Boat has Trinidad anti-fouling bottom paint, and is unrestored condition. Currently turning a Quicksilver Trophy Plus 4 blade 13x21 SS prop, with a skeg-mounted hydro-shield. (I would be better off with 19" pitch) WOT with 3 adults and full fuel is 5350 rpms at 34 mph in a light chop, burning 10.8 gph or 3.1 mpg. (I need to turn 5700 RPMS at WOT to be just right on the prop) Cruise is 3900-4100 rpms at 23-25 mph, burning about 4.9 gph or about 5.1 mpg. Minimum planing speed is 14 mph, but requires throttling up to 17 mph, and then falling back to 14. Absolute Best Economy is 3800 RPMS at 22 mph and 5.3 mpg
__________________
Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes. Fr. Frank says: Jesus liked fishing, too. He even walked on water to get to the boat! Currently without a SeaCraft  (2) Pompano 12' fishing kayaks '73 Cobia 18' prototype "Casting Skiff", 70hp Mercury 
|
|
|
Threaded Mode