#1
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Comparative performance numbers
Wonder if there is any interest in a comparative performance numbers thread?
Just post your data...No responses. Ask each questions through pm... Maybe something like this: Year & Model Motor yr Make Model HP Prop Make, Model and material, Diameter and Pitch Tabs or foil or not Speed to stay on plane Best cruise economy mpg/gph @ rpm w/mph Speed rpm and mpg @ WOT Personal hole shot satisfaction Typical load no.riders, fuel, etc Here's mine: 72 Seafari 83 Merc I-6 115 hp Mercury Black Max (Al) 13.75" x15P No tabs 16 mph to stay on plane 2.5 mpg @ 4200 rpm 28mph 1.9 mpg @ 5500 rpm 36 mph excellent hole-shot 2 riders 40 gal., 22 gal. bait tank, tuna gear for 12 hr day.
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there's no such thing as normal anymore... |
#2
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Re: Comparative performance numbers
1976 20 foot seacraft SF
1997 150 yamaha 14 x 19 yamaha prop lenco trim tabs not sure at what speed it stay's on plane 2.53 mpg at 44oo rpms with 1 rider "Me" 47 gallons of fuel ran 47.2 miles and used 18.6 gallons excellant hole shot with out trimtabs with trim tabs it just jumps right up on plane |
#3
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Re: Comparative performance numbers
72 Seafari with '06 Mercury Optimax 90 hp
13"x21" 4B Trophy Plus prop Cruise 25 mph, at 4000 rpms, WOT 33 mph at 5200 rpms 5.1 mpg @ 4000 rpms/25 mph 3.7 mpg @ 4700 rpms/30 mph HydroShield skeg-mounted foil/propeller protector (see photo) Time to fully plane off: 5 seconds Minimum planing speed: 18 mph Typical Load: 600 lbs persons (4 adults), 180 lbs fuel, 250 lbs gear (including 3 anchors and anchor rodes). Old Apollo prop w/ HydroShield
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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 |
#4
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Re: Comparative performance numbers
Just got back from Lake Erie this evening so and I took notice on what the old girl did
81 23' SF CC Twin 81 225 black max's and a 95 9.9 merc 19P stainless merc stiletto's Lenco 12x12 tabs (great) 20 knots is about minimum plane speed 2800 rpm's 3800 rpm's best cruise 28 knots near as I can tell 1.5 mpg 6000 rpm's wot (only have the stones to do it for a few seconds to date) hit 57 knots gps and until I get the floscans next spring I have no idea the gallons per minute. Hole shot...good thing the leaning psot is secured well. Typical load is about anything I want to haul on her, she'll haul 5 guys and gear just as easily as when I'm by myself. Only the 2nd season with her and the boat amazes me. |
#5
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Re: Comparative performance numbers
1976 23’ inboard
350-2V Prop – unknown 3 blade Lenco Tabs 17mph @ 2400 RPM to stay on plane Usually run 2800/24mph @ 9.2gph WOT 3800/32mph @ 16.4gph Load: 2 adults, ½ tank fuel (50 gal?) Loaded for fishing |
#6
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Re: Comparative performance numbers
79 sceptre
350 volvo 280 drive wot 4700 rpm 36 mhp to stay on plane, 12 mph with tabs,and one person 13-14 with 3 typical load, 3-4 adults, 4 downriggers, outriggers,planer mast, aluminum top, 80 gallons petrol.
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http://i224.photobucket.com/albums/d...t/0a21e0b9.jpg |
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