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Old 04 July 2006, 17:26   #11
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Country: UK - England
Town: Clitheroe
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Yes i remember talking to you about that, were at WOT all he time pretty much. During the weekend we had her fully trimmed out at full power all the way, just touching 31 knots. This probably explains the poor fuel comsumption.

Whats sort of RPM were you at most of the time and WOT speed?
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Old 04 July 2006, 18:33   #12
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Country: UK - England
Town: hants
Boat name: Viper
Make: Osprey Vipermax 6.5
Length: 6m +
Engine: 200 opti
MMSI: 235 036 257
Join Date: Dec 2005
Posts: 74
Quote:
Originally Posted by zodiac rover
Yes i remember talking to you about that, were at WOT all he time pretty much. During the weekend we had her fully trimmed out at full power all the way, just touching 31 knots. This probably explains the poor fuel comsumption.

Whats sort of RPM were you at most of the time and WOT speed?
for us wot is around 47knots / 53-54 mph at around 5400 rpm but i can not swear to the rpm as never looked close enough when zipping along. the speed most folks seems to be doing was around 40 -45 mph at the front and we spent a good bit of time going reasonably fast with spurts of wot. I guess we were cruising anywhere around 35-50 mph as we would change position in the pack. we would look for wakes to jump and play around which would cause us to change position quite a lot.

i think our economy is down to the engine reasonably effortlessly pushing the boat along. when on the plane and it has a planing pad it is very easy going. Some of the smaller engines were at wot most of the day i suspect and this is never a good economical approach.

so for me the day was even more enjoyable knowing we had only burnt a reasonably frugal amount of fuel as fuel consumption was a big concern of mine prior to the purchase of the engine. i was really pleased to return fuel consumption better than or equal to smaller 4 strokes.

i can honestly say i love my opti lots

using the mrs pc here

chris
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Old 05 July 2006, 06:55   #13
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Country: UK - Wales
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Boat name: DynaMoHumm/ SRV/deja
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you do get a lo of bang for your buck with an Opti
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