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Posted: Tue Feb 12, 2008 12:22 am Post subject: Revisiting Arrow/Môr Forwyn
When John Chapman was staying with me a he took a shine to an ME1 I had gathering dust on a shelf.....previously he'd let slip he had the business end of a Bowman M140 in a box somewhere.....a deal was swiftly agreed!
As you'll see in the video, I'm in the progress of fitting the engine in my Arrow.....I've replaced the flywheel with meccano gearing, SeaHawk style, and a displacement lubricator and oil trap will be added.
This engine packs a serious punch.....I now need to decide if I want this engine in this boat and the SEL unit in another, or vice versa.
_________________ Stands the glass half empty,
Or stands the glass half full?
Blast your Buddhist mantra, man,
I'll take another pull.
Joined: 19 Jul 2006 Posts: 31120 Location: Midlands, UK
Posted: Tue Feb 12, 2008 12:27 am Post subject:
Wow, I would definately try the M140 engine unit in a boat! You don't see many twin cylinder boats do you? _________________ Solid Fuel tablets explode
Wow, I would definately try the M140 engine unit in a boat! You don't see many twin cylinder boats do you?
Well, it's all RocDoc's fault....I love his SeaHawk so much, I want my own - this will be the next best thing. _________________ Stands the glass half empty,
Or stands the glass half full?
Blast your Buddhist mantra, man,
I'll take another pull.
Joined: 26 Dec 2006 Posts: 6136 Location: Indiana, USA
Posted: Tue Feb 12, 2008 1:48 am Post subject:
That is awesome Moose...looks like it was custom made to fit the boat perfectly. Can the boiler keep up with two cylinders would be my only concern, but I believe you have a gas burner in that one, so probably not a problem.
I still can't get over how nicely that engine slots into a boat!! _________________ Visit IndianaRog and The Temple of Steam: www.indianarog.com
Not quite a self-starter Graham, they're single acting cylinders.....they take some stalling though. All I need to do to is center the gear properly on the shaft - I need to whittle a proper bush, at the moment it runs out of true a little. _________________ Stands the glass half empty,
Or stands the glass half full?
Blast your Buddhist mantra, man,
I'll take another pull.
sounds good mate look forward to seeing it running in person.
hope you are ready for a steamup
You bet I am! I'll have it sorted for when you're over, maybe we can go and chuck it in the pond. _________________ Stands the glass half empty,
Or stands the glass half full?
Blast your Buddhist mantra, man,
I'll take another pull.
Joined: 26 Aug 2006 Posts: 3197 Location: Leeds UK
Posted: Thu Feb 14, 2008 10:05 pm Post subject:
What a good idea! I'd never thought about it before but the 140 is an ideal boat engine... powerful and compact. I'll be following this with great interest!
I've no idea what the net result will be......the SEL (ME3) is quite a powerful beastie....on the dry it runs faster than the 140 engine, but it certainly doesn't have the same torque. I want to try out how hard I can push that burner/boiler....mind you, on the very first run with the SEL engine going flat out she nearly capsized on a sharp turn....
Of course the Bowman engine has the advantage that it is better balanced, and has a very low centre of gravity....it will be below the water line. I also would like to see if it would be possible to do a direct drive rather than a geared one. _________________ Stands the glass half empty,
Or stands the glass half full?
Blast your Buddhist mantra, man,
I'll take another pull.
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