Random Picture Thread

5 outboards

I saw a photo of a boat with 5 outboards on it somewhere, can anyone tell me where the photo was? Sam

 

SamSam,

Maybe this one? see anything you like?

 

Multiple outboards

Our member Ranchi Otto likes to design boats with many outboards, http://www.boatdesign.net/forums/member.php?u=8724

 

Yup, Ranchi Otto is a Great designer..... only he did couldnt put multi outbaord on this boat.......... what a pity .......................

WDH

 

Welly, I may have just found the plans for my $100 boat…

 

hansp77 try a free sampan plan in forum....... sampan mean 3 plank boat, you will be surprise it is a good boat to build with that budget.

 

No one want to see this, but a lesson learned by one marina owner - I guess.

http://forums.pelicanparts.com/showthread.php?s=&postid=2644903#post2644903

 

Whoops

guess the moral is don't leave the galley stove on when you go for a wee!

Seriously sad for the owner(s) tho'

 

SeaSpark, This is the one I saw. I was wrong, I guess it would be underpowered with only 5 engines.
Welly, Is the one with 8 engines a real picture? Do you know what the ones with 5 are used for? They look well used.
Thanks guys, Sam

 

Use of many outboards

Guess they are used to go fast.

I am not an expert on high speed motor boats but i do know that multiple prop boats lose efficiency becourse of the drag from shafts. Outboard engine shafts have more shaft drag then inboard engines. Most high speed single hulled boats have only one shaft. So have large bulk carriers and tankers where efficiency also is very important. This is one of the reasons why surface piercing propellors were developed, their shaft is at water level so has almost no drag.

Read somewhere on the forum about the red boat by Ranchi. Those engines happened to be available so were used, they were more cheap then a new single engine with same hp.

 

Pirate in Asia prefer multiple outboard....... fast runner and hunter......

 

Welly got it, good smuggler too (loose an engine it don't matter, harldly slows you down, can still outrun the Navy, Customs, Police etc!) More is better - maybe!

 

Smugglers

Welly, Walrus, how dare you say Ranchy is a smuggler!

Of course there are many reasons to use multiple props, reliability, maneuverability, compensating for the wheel effect are some of them. I just think that when efficiency and speed are your goal a single prop is better in most cases.

 

I think the pirate stole six boat outboard and fixed it to a sleek long hull....... economical situation, if one of the engine pop then they just go around and steal another.

 

The story is in the link. Boat owner working on his engine, it back fired igniting fumes and causing a fire. The guy has burns on his face and arms, had to be evacuated by ambulance helicopter.