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17 July 2011, 18:23
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#61
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Member
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 919
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Avon SR 5.4, 19 pitch alu prop, me and 2 small kids + 70 l gasoline. Today 43,5 mph(gps), not totally trimmed out(no chine walk) so maybe little more to come. Need to test without the kids....
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fun on a boat is inversely proportional to size...sort of anyway
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17 July 2011, 20:05
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#62
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Member
Country: UK - England
Town: Dartmouth
Boat name: Puffling
Make: Avon Rover 3.4m
Length: 5m +
Engine: Mercury 15hp
Join Date: Jan 2002
Posts: 404
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Avon 5.4m Searider..
Searider 5.4m 2 POB, 60 litres fuel, 90hp Yamaha, 34.5knots /
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Advanced Power Boat Instructor
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17 July 2011, 21:46
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#63
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Member
Country: UK - England
Town: Northampton
Make: RibTec
Length: 5m +
Engine: Outbaord mariner 75
Join Date: Apr 2011
Posts: 506
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ribtech 5.35 75hp Mariner 2 stroke 17" prop 2 on board 50l fuel I got 40 ktn!! and apparently you could see under the boat and all that was in the water was the prop!!!! I was chacing my mates Delta.
I won our race :-)
But boy was it scary
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26 July 2011, 21:04
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#64
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Member
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 919
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Quote:
Originally Posted by C-NUMB
Avon SR 5.4, 19 pitch alu prop, me and 2 small kids + 70 l gasoline. Today 43,5 mph(gps), not totally trimmed out(no chine walk) so maybe little more to come. Need to test without the kids....
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Today, no kids, 50 l gasoline and reached 45,4 mph. If having the time trying to remove the anti fouling some day, then the target will be 47. At 45 pretty stable, only minor tendency to start chine walk but did not start yet. Lightly loaded the 19 inch is much better than 17 standard alu prop. Revs around 5400+ rpm(forgot to check at top speed).
There is also a minor hook in the bottom just before transom, sorting that out might further improve things a litle.
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fun on a boat is inversely proportional to size...sort of anyway
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29 July 2011, 09:21
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#65
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RIBnet supporter
Country: UK - England
Town: Berkshire
Boat name: Blueray,baby blue
Make: Shearwater,searider
Length: 8m +
Engine: 275verado,60mercury
Join Date: Jul 2011
Posts: 14
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shearwater 8.6 110litres of fuel verado275 std fuel 49kts but have read 52 once going round st catherines with slight chop. aiming at cruising though so with better prop maybe 55? 
apparently in winter we should perform better 
also prop is a 23" revolution 4
WOT 5500-6500
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29 July 2011, 09:41
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#66
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Member
Country: UK - Channel Islands
Town: jersey
Boat name: Martini II
Make: Arctic 28/FC470
Length: 8m +
Engine: twin 225Opti/50hp 2t
MMSI: 235067688
Join Date: Jun 2005
Posts: 3,030
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Quote:
Originally Posted by blueray
shearwater 8.6 110litres of fuel verado275 std fuel 49kts but have read 52 once going round st catherines with slight chop. aiming at cruising though so with better prop maybe 55?
apparently in winter we should perform better
also prop is a 23" revolution 4
WOT 5500-6500 |
Who's that, Rick?
Are you allowed 2 profiles to one boat 
Welcome 
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29 July 2011, 09:52
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#67
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Member
Country: UK - N Ireland
Town: Bangor, Co Down
Boat name: Ribeye & Tremlett 15
Make: Ribeye & Tremlett 15
Length: 4m +
Engine: Yamaha F40, Merc 500
Join Date: Jul 2010
Posts: 265
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RIBEYE 4.5m, Yam 40hp 4stroke, 2 up + 12 gals fuel + all kit: 32mph, on GPS
T15, Tremlett 15, 1976/7 Merc 500 50hp, 1up + 5 gals fuel, original 17" pitch alum prop & original spark plugs: 42.1mph, timed at classic rally 2004 and 2 up + 10 gals fuel + kit + as above: 40 mph on GPS; WOT 5450 rpm
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29 July 2011, 12:15
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#68
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Member
Country: USA
Town: Marblehead
Boat name: Calypso
Make: Protector 28
Length: 8m +
Engine: 2x Verado 225
Join Date: Aug 2006
Posts: 61
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48.3 knots this morning on the Protector with twin 225 Verado's, full tank of gas, 1 aboard.
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Piper
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29 July 2011, 15:27
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#69
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Member
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
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Older Shearwater 7.5 with a 200 opti maxed at 51knts with 120L petrol & 2 up. 21 inch prop - I didn't have time to look at the revs !!
Avon 4m with a yam 50 4s maxed at 31knts - 25l petrol & 2 up ....
Was ALOT more money for the extra 20knts ! But I still miss it ....
Oh and the Bombard -25 2 s Merc - 18knts - thats 3 up / 25L petrol and assorted junk ...
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29 July 2011, 15:51
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#70
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RIBnet supporter
Country: UK - England
Town: Berkshire
Boat name: Blueray,baby blue
Make: Shearwater,searider
Length: 8m +
Engine: 275verado,60mercury
Join Date: Jul 2011
Posts: 14
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Quote:
Originally Posted by PeterM
Older Shearwater 7.5 with a 200 opti maxed at 51knts with 120L petrol & 2 up. 21 inch prop - I didn't have time to look at the revs !!
Avon 4m with a yam 50 4s maxed at 31knts - 25l petrol & 2 up ....
Was ALOT more money for the extra 20knts ! But I still miss it ....
Oh and the Bombard -25 2 s Merc - 18knts - thats 3 up / 25L petrol and assorted junk ...
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shearwaters= best cuddy rib 
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29 July 2011, 16:00
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#71
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Member
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
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Quote:
Originally Posted by blueray
shearwaters= best cuddy rib |
Without question.....and one of the quickest / best looking too !
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29 July 2011, 16:59
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#72
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RIBnet supporter
Country: UK - England
Town: Berkshire
Boat name: Blueray,baby blue
Make: Shearwater,searider
Length: 8m +
Engine: 275verado,60mercury
Join Date: Jul 2011
Posts: 14
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Quote:
Originally Posted by PeterM
Without question.....and one of the quickest / best looking too !
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slippery boats arent they 
#still seaworthy though 
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02 August 2011, 19:50
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#73
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Member
Country: UK - England
Town: Chorley / Holyhead
Boat name: Northwind Challenger
Make: Tornado
Length: 6m +
Engine: Mariner 115 efi CT
MMSI: 235080598
Join Date: Jun 2011
Posts: 1,411
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Quote:
Originally Posted by Festinghouse
Yeah just a bit, i get 36mph out of my mariner 75 running a 21"prop on my 6m.
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just swapped 21" prop with a 20" stainless one, and with a little fine tuning of engine now managed to get 41 mph!
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"Life may often suck, but the alternative is unacceptable"
MMSI Sticker
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04 August 2011, 21:05
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#74
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Member
Country: USA
Town: Windsor CT
Boat name: Blue Moon
Make: ribcraft 6.5
Length: 6m +
Engine: 150 hp honda
MMSI: 338051172
Join Date: Apr 2007
Posts: 139
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Quote:
Originally Posted by MtStPipier
48.3 knots this morning on the Protector with twin 225 Verado's, full tank of gas, 1 aboard.
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How much fuel did you have left from your full tank after you hit 48.3 kts?
Bill
PS I'm jealous.
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05 August 2011, 07:11
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#75
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Member
Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 4,225
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91.5mph
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Cookee
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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05 August 2011, 20:13
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#76
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Member
Country: USA
Town: Marblehead
Boat name: Calypso
Make: Protector 28
Length: 8m +
Engine: 2x Verado 225
Join Date: Aug 2006
Posts: 61
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Quote:
Originally Posted by ribfan
How much fuel did you have left from your full tank after you hit 48.3 kts?
Bill
PS I'm jealous.
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Ha, not much burning 50 GPH. Haven't sold the Ribcraft, so I guess that's my economy RIB.
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Piper
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08 August 2011, 11:32
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#77
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Member
Country: UK - England
Town: Ipswich
Boat name: Jammy Dodger
Make: Avon Adventure 7.20
Length: 7m +
Engine: 200 Yamaha
Join Date: Dec 2008
Posts: 365
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49.8 Knots - With 2 people + 200L of fuel! (speed over water)
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08 August 2011, 14:14
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#78
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RIBnet supporter
Country: UK - England
Town: Dinard, Brittany
Boat name: Into the Red
Make: Osprey Vipermax
Length: 7m +
Engine: Evinrude E-tec 250HO
MMSI: 235 076 114
Join Date: Apr 2009
Posts: 1,957
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Me alone, 15 litres fuel - - shoots up to 51 then climbs steadily but chinewalking starts bang on 52 so I backed off. SOG and not 2 way average.
However with 2 weeks kit, tent, dinghy + engine, it still made 49 (Phil will verify  ) however I think that was with the tide. With me and GD on board it struggled to get past 45 with a normal fuel load but loads of kit.
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30 August 2011, 20:57
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#79
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Member
Country: USA
Length: 3m +
Join Date: Jul 2011
Posts: 4
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Fun Speeder
12'4" AquaPro Monoco - 38 MPH on Iphone GPS (Speedbox App) Honda BF50
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31 August 2011, 08:56
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#80
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Member
Country: UK - England
Town: Ipswich
Boat name: Jammy Dodger
Make: Avon Adventure 7.20
Length: 7m +
Engine: 200 Yamaha
Join Date: Dec 2008
Posts: 365
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Had 57 Knots Over water with less fuel last weekend
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Northwind Challenger
Into the Red
Ro Row
