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#1
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
Next Project on my Crown 28 (it doesn't end, does it?) is a new fuel
tank. I have NO IDEA what the fuel consumption is - anybody have any guesses? (One reason I'm replacing it is that there's no way to determine how much fuel there is the tank) If not the MD6A specifically, what figures would I expect for an old 10hp 2-cyl? I know my new M25XPB cruised at about 0.7 gph. This engine is 1/2 the size, but a lot older. Any help? druid http://www.bcboatnet.org |
#2
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On Tue, 1 Jan 2008 12:54:25 -0800 (PST), druid
wrote: Next Project on my Crown 28 (it doesn't end, does it?) is a new fuel tank. I have NO IDEA what the fuel consumption is - anybody have any guesses? (One reason I'm replacing it is that there's no way to determine how much fuel there is the tank) If not the MD6A specifically, what figures would I expect for an old 10hp 2-cyl? I know my new M25XPB cruised at about 0.7 gph. This engine is 1/2 the size, but a lot older. Any help? druid http://www.bcboatnet.org Figure 3 or 4 hours to the gallon unless you are running it wide open. Our old Westerly 28 had a 9 gallon tank and it used to last several months. |
#3
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
In a 30 ft. Ballad (deplacement = 3,5t; 1/4t sailboat), with the above
engine from 1973, we used to measure 1½ l. per hour when doing some 5 knots in "quiet waters". I hope you can recalculate til gallons ... Roughly speaking 4 liters til the gallon ... so we did a little less than three hours to the gallon ... -- best regards Flemming Torp Gimle/DEN-61 "Wayne.B" skrev i en meddelelse ... On Tue, 1 Jan 2008 12:54:25 -0800 (PST), druid wrote: Next Project on my Crown 28 (it doesn't end, does it?) is a new fuel tank. I have NO IDEA what the fuel consumption is - anybody have any guesses? (One reason I'm replacing it is that there's no way to determine how much fuel there is the tank) If not the MD6A specifically, what figures would I expect for an old 10hp 2-cyl? I know my new M25XPB cruised at about 0.7 gph. This engine is 1/2 the size, but a lot older. Any help? druid http://www.bcboatnet.org Figure 3 or 4 hours to the gallon unless you are running it wide open. Our old Westerly 28 had a 9 gallon tank and it used to last several months. |
#4
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On Jan 1, 1:34 pm, Wayne.B wrote:
http://www.bcboatnet.org Figure 3 or 4 hours to the gallon unless you are running it wide open. Our old Westerly 28 had a 9 gallon tank and it used to last several months. OK... both you and Roger are leaning towards about 3 hrs per gal conservatively. At 5 knots "cruise", a 12 gal tank would give me about 150 miles, with 2 gals reserve. Sounds OK (although I'll still get the 19 gal if I can get it to fit! The 12gal will definitely fit.) druid |
#5
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On Tue, 1 Jan 2008 14:02:57 -0800 (PST), druid
wrote: On Jan 1, 1:34 pm, Wayne.B wrote: http://www.bcboatnet.org Figure 3 or 4 hours to the gallon unless you are running it wide open. Our old Westerly 28 had a 9 gallon tank and it used to last several months. OK... both you and Roger are leaning towards about 3 hrs per gal conservatively. At 5 knots "cruise", a 12 gal tank would give me about 150 miles, with 2 gals reserve. Sounds OK (although I'll still get the 19 gal if I can get it to fit! The 12gal will definitely fit.) druid On a Yamaha 30 with a Yanmar 2GM13, I got about 1.5 litres/hr, if I remember correctly. -- Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca |
#6
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On 2008-01-01 17:02:57 -0500, druid said:
On Jan 1, 1:34 pm, Wayne.B wrote: http://www.bcboatnet.org Figure 3 or 4 hours to the gallon unless you are running it wide open. Our old Westerly 28 had a 9 gallon tank and it used to last several months. OK... both you and Roger are leaning towards about 3 hrs per gal conservatively. At 5 knots "cruise", a 12 gal tank would give me about 150 miles, with 2 gals reserve. Sounds OK (although I'll still get the 19 gal if I can get it to fit! The 12gal will definitely fit.) druid At 5 knots (not 5.5), you're probably in a good ballpark. Average speed makes a real difference. -- Jere Lull Tanzer 28 #4 out of Tolchester, MD Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/ Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/ |
#7
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On Jan 1, 1:58 pm, "Flemming Torp" torpkanelbolle2rp.danmark wrote:
In a 30 ft. Ballad (deplacement = 3,5t; 1/4t sailboat), with the above engine from 1973, we used to measure 1½ l. per hour when doing some 5 knots in "quiet waters". I hope you can recalculate til gallons ... Roughly speaking 4 liters til the gallon ... so we did a little less than three hours to the gallon ... No, litres is good - I'm a nice metric Canadian, only mentioned gals so those Americans would understand... Looking at a 50 l tank, so at 5 knots with a couple litres to spare, range would be about 150 miles. (if its not "quiet", there's wind and I can sail!) Thanks druid http://www.bcboatnet.org |
#8
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On Jan 2, 12:27 am, Jere Lull wrote:
On 2008-01-01 17:02:57 -0500, druid said: On Jan 1, 1:34 pm, Wayne.B wrote: http://www.bcboatnet.org Figure 3 or 4 hours to the gallon unless you are running it wide open. Our old Westerly 28 had a 9 gallon tank and it used to last several months. OK... both you and Roger are leaning towards about 3 hrs per gal conservatively. At 5 knots "cruise", a 12 gal tank would give me about 150 miles, with 2 gals reserve. Sounds OK (although I'll still get the 19 gal if I can get it to fit! The 12gal will definitely fit.) druid At 5 knots (not 5.5), you're probably in a good ballpark. Average speed makes a real difference. aYup! Knotmeter says 5.5, pretty much 6 WOT, but 5 is more realistic for navigation purposes. Once I win the lottery (or at least a scratch-n- win...) and put in the 2GM20F, I'll use 5.5 (maybe even 6). And you're right: that 1/2 knot makes a HUGE difference! druid http://www.bcboatnet.org |
#9
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
"druid" skrev i en meddelelse ... No, litres is good - I'm a nice metric Canadian, only mentioned gals so those Americans would understand... Looking at a 50 l tank, so at 5 knots with a couple litres to spare, range would be about 150 miles. (if its not "quiet", there's wind and I can sail!) Thanks druid http://www.bcboatnet.org This summer, I visited family on Vancouver Island, and enjoyed sailing in the beautiful waters in and around Georgia Strait. Where I come from, the current is generally not that much of a problem, but I learned, that the tide in some of your waters can give some very different conditions and boat speeds. I.e.: 50 liters of diesel may not always give you 150 NM ... ;0) ... But you can count on your engine will run for a little more than 30 hours ... ;0) ... -- Flemming Torp |
#10
posted to rec.boats.cruising
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Fuel consumption on Volvo MD6A?
On Jan 2, 7:59 am, "Flemming Torp" fletopkanelbolle2rp.danmark
wrote: "druid" skrev i en ... No, litres is good - I'm a nice metric Canadian, only mentioned gals so those Americans would understand... Looking at a 50 l tank, so at 5 knots with a couple litres to spare, range would be about 150 miles. (if its not "quiet", there's wind and I can sail!) Thanks druidhttp://www.bcboatnet.org This summer, I visited family on Vancouver Island, and enjoyed sailing in the beautiful waters in and around Georgia Strait. Where I come from, the current is generally not that much of a problem, but I learned, that the tide in some of your waters can give some very different conditions and boat speeds. I.e.: 50 liters of diesel may not always give you 150 NM ... ;0) ... But you can count on your engine will run for a little more than 30 hours ... ;0) ... Yup. Part of "navigation" in these waters is accounting for tidal currents, both in when you hit a pass or channel, and in range, etc. In Theory it balances out (you'll be going with the current as often as against it), but Local Knowledge says differently: for instance, flood tide around White Islets can be 2-3 knots, but ebb tide is pretty much non-existant. And there's a place around Arran Rapids where flood and ebb tide go the same direction! (ask Capn Vancouver!) druid http://www.bcboatnet.org |
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