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The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
On Fri, 25 Apr 2008 22:30:45 -0700 (PDT), Jay
wrote: If a person strapped TWO of those Suzuki 2.5hp outboards (only 29 lbs. each) to the back of the boat, one on each side, what would be the effect? 5hp? Double the speed? Double the noise? Nothing? Just curious... If you want to go significantly faster you need enough power to get on plane. That will take 10 to 20 hp for your boat depending on how heavily loaded it is. The complexity of trying to steer two outboards is reason enough not to do it but there are other reasons also like increased drag, fuel consumption and maintenance. Most dual outboard installations are done for redundancy on offshore boats or where the boat is heavy enough that no single motor provides enough power. |
The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
On Sat, 26 Apr 2008 05:47:52 -0700 (PDT), Jay
wrote: "I see a lot of boats here with a couple of 250 h.p. engines strapped on the tail." Curious why they don't just strap ONE 500 hp motor on the back instead of two 250s if there's not an advantage. It's simple. 250 is as big as they make them, you can't get a 500HP engine. Casady |
The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
On Sat, 26 Apr 2008 08:54:06 -0400, Wayne.B
wrote: The complexity of trying to steer two outboards is reason enough not to do it Its simple,not complex. A tie bar between the tillers and you have it. Casady |
The Suzuki 2.5 hp makes the final cut...but what about TWO ofthem, in tandem?
Jay wrote:
If a person strapped TWO of those Suzuki 2.5hp outboards (only 29 lbs. each) to the back of the boat, one on each side, what would be the effect? 5hp? Double the speed? Double the noise? Nothing? Just curious... Well Jay, I can speak from experience, here. When my son was about 15 he wanted to know what happens if we put both the 2HP Evenrude, ant the 2.2. Merc on the back of the punt; I figure what the hell, let's try it. You go a bit faster, maybe 25%, (which jibes with other posters statements), and use twice the gas, but have four times the fun trying to keep the thing going straight! :-) Cheers Marty |
The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
On Sat, 26 Apr 2008 05:47:52 -0700 (PDT), Jay
wrote: On Apr 26, 5:15*am, Bruce in Bangkok wrote: I keep telling the guy, "call Roger". He don;t listen. Bruce-in-Bangkok Oh, he DO listen but he's just gathering alternate info from other sources. I'll get around to the head guru Roger soon. What's taking up my time is trying to figure why those power maniacs around you are strapping two of the big blasters to their boats. As you stated, "I see a lot of boats here with a couple of 250 h.p. engines strapped on the tail." Curious why they don't just strap ONE 500 hp motor on the back instead of two 250s if there's not an advantage. Curious.... -Jay (who listens.......................................... ............occasionally) I don't have a clue. I'm the buy that thinks a 5 HP engine is a BIG motor. I guess because it is cool. "Man, I've got the biggest engines in town", or because they listen to Cassady and think that two engines make them go twice as fast. Hell, I don't know. Bruce-in-Bangkok (correct email address for reply) |
The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
"Bruce in Bangkok" wrote in message ... Hell, I don't know. For once you speak the truth! Keep up the good work, Bruce. Wilbur Hubbard |
The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
On Sat, 26 Apr 2008 09:46:45 -0400, "Roger Long"
wrote: "cavelamb himself" wrote You might "Ping" Roger as to why doubling the Horse Power doesn't necessarily mean double the speed. Has to do with all kind of hull forms and hydrodynamics and too much of it will make your eyes cross. As has been pointed out here, I have no *formal* training in naval architecture and am therefore unqualified to comment. I do know that it is an immutable law of the universe however and always obey it even when I don't see any physics cops in my rearview mirror. BTW good bio article about Ray Hunt in the latest "Yachting". Another guy with no formal training in the field. I believe it is called empirical learning. I've seen half models carved a hundred years ago that wouldn't bring any shame on a "modern" designer. Bruce-in-Bangkok (correct email address for reply) |
The Suzuki 2.5 hp makes the final cut...but what about TWO of them, in tandem?
On Sat, 26 Apr 2008 09:46:45 -0400, "Roger Long"
wrote: "cavelamb himself" wrote You might "Ping" Roger as to why doubling the Horse Power doesn't necessarily mean double the speed. Has to do with all kind of hull forms and hydrodynamics and too much of it will make your eyes cross. As has been pointed out here, I have no *formal* training in naval architecture and am therefore unqualified to comment. I do know that it is an immutable law of the universe however and always obey it even when I don't see any physics cops in my rearview mirror. BTW good bio article about Ray Hunt in the latest "Yachting". Another guy with no formal training in the field. I believe it is called empirical learning. I've seen half models carved a hundred years ago that wouldn't bring any shame on a "modern" designer. Bruce-in-Bangkok (correct email address for reply) |
The Suzuki 2.5 hp makes the final cut...but what about TWO ofthem, in tandem or even FOUR??
On Apr 26, 3:47*pm, Marty wrote: You go a bit
faster, maybe 25%, (which jibes with other posters statements), and use twice the gas, but have four times the fun trying to keep the thing going straight! :-) Cheers, Marty Now THAT sounds like a formula for an afternoon of fun boating! But as far as keeping it going straight, wouldn't an outrigger setup with yet two more 2.5 hp throbbers mounted one on each side like jet engines hanging off the wing of an airplane make it "steady as she goes?" I guess if one is gonna go to all that trouble, a better thought might be just one 9.8 hp hanging on the tail. But I bet the other setup would get a lot of attention and perhaps even earn one the title of "coolest boater dude on the lake" or "nutcase boater of the year." -Jay |
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