Do you prefer Single or Twin Screws? 390 Mainship Trawler (Full Tour) Harbor Yacht Tours

Val Halla is a 2001 Mainship 390 in great condition.
The 390 could be said to be the boat that boaters designed. Mainship actually asked groups of Mainship owners what improvements they would like to see and incorporated many of them into the 390. The door by the lower helm, stairs instead of a ladder, transom door, keep the bridge extension over cockpit, 2nd cabin, 2 door head, windlass, power connections at both ends, and several other features.
This was a message from a Trawler Forum
Located in Placida FL
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*I am not a broker this video is for entertainment only

[@mccannchannel9579]

I love your videos: not too long, not too short, very informative, not too zoomed in and not too far, love the 360's you do (lots of you tubers fail to do that). Practical information. And really impressed by both of your knowledge and terminology. Thank you. Hopefully you get a benefit for doing these. Keep up the great work.

[@HarborYachtTours]

Thanks for the compliments its pays a little but I need to get better if it’s going to be a full time gig.

[@HarborYachtTours]

Also, when you say 360 are you talking about my continual walk-through towards the end of the videos? Thanks again.

[@captainmother1268]

Thanks Harbor Tours! You guys are doing better and better! Single engine is fine - unlike a twin screw boat with exposed props, a single screw prop is well protected by the keel. In the Pacific Northwest and along Inside Passage to Alaska, there's plenty of logs to hit. That argument that two engines are more reliable goes out the window when you have a log strike - and now you have too busted engines, gears and props. Now you get to fix two of everything. It happens. For us what works best is single good engine, and carry a spare kicker outboard if it makes you feel better...but we've never needed it. That 3126 is a good engine, but it does NOT have replaceable cylinder sleeves, so a little more of a challenge to rebuild - if it ever needs it. It'll go 15k~20k hours with good maintenance. The absolute worst thing to do to a diesel is to let them sit - so when you're looking at a diesel boat to buy you WANT that engine to have some hours on her - that will make it last longer. Very nice, practical boat. Except that door from the head to master cabin is useless...Otherwise good layout.

[@HarborYachtTours]

Thanks! Good points.

[@roadboat9216]

Nice boat. Seems to be in pretty good condition. I am a US Power boat and US Sailing instructor. We had a fleet of Mainships. Taught single screw on this boat. Our students could maneuver the boat in marinas without using the thruster. With skill it can be done. I cruised a 36’ trawler and it didn’t have any thrusters. So you can do it. Now, do I think that the thrusts are a plus? Sure. I’ll take em! I have had vessels with John Deer, Yanmar, Cat and Cummins. Liked them all. The only one that I would avoid is Volvo. They are harder and much more expensive to repair and we have had total failure on two of them when fairly new too. Yanmar is the only true marine engine by design. With our twin screw class you had to be able to manuver and dock the twin screw Mainship 43 on one engine and no thruster. Without single screw experience it would be extremely hard to do.
I prefer single screw. Half of the maintenance and MUCH more room to work on them. If you have plenty of money and pay for your maintenance, twins are more maneuverable. But with bow AND stern thruster and some good instruction, maneuvering is not a problem. The other big expense is having those twin shafts and props sticking out there screaming come and hit me. Very expensive repairs. The single is protected by the full keel. If you hit anything of any consequences, you are looking at costly damage and down time. And possible really BIG repair bills. Single for me. In tens of thousands of cruising miles I have never been totally stranded with a single. With a good supply of spares and basic diesel skills. (I am not a mechanic), I have always been able to keep her going.

[@HarborYachtTours]

Thanks for sharing your thoughts. Great info.

[@justinlinnane8043]

Great tour ! Thanks

[@HarborYachtTours]

Thanks Justin

[@dougmorley2850]

Another great tour ! The only way stainless will rust is it's low quality with a low chrome content in it . If a magnet will stick to it that means it is very low grade material !

[@HarborYachtTours]

It must all be low grade because if there’s been a boat, I detailed that didn’t have some rust stains on the stainless. I can’t remember it.

[@BillyBobDingledorf]

I just want those chairs on the top deck.

[@HarborYachtTours]

I’ll take the E Bikes lol.

[@MarkBarrack]

Being that I have minimal experience I would like to hear if single or twin engines are preferred. My brain says for control, speed and redundancy twins win. Fuel and maintenance cost then a single is fine. Long range or loop a single seems sketchy.

[@josephkordinak1591]

If I was in the market I would go with a single with a wing first choice or twins. I am partial to Cummins engine wise, JD would probably be second choice.

[@HarborYachtTours]

Thanks Joseph

[@nunop6606]

Hi from Portugal. 1 Engine! Yanmar if posible... better if with a hybrid solution in parallel.

[@HarborYachtTours]

Thanks for sharing

[@caseya2151]

I say twin... I know there are those that say it's easier to maintain a single... but with a single you lose two things... torque and secondly, if there is a problem... the problem that would occur will most likely be only on one engine. It's better to hobble on one leg then to crawl with no legs. With all that being said... It really depends on your usage. Speaking for myself... I like to fish... but I also like to get there to have time to fish! I'm also the same guy that doesn't like to wake up at the crack of moon to be at my fishing hole either. So... It's possible to push my 34' with one 400... however, I didn't just op for twins... I played it triply safe with trip 400's. Yes, I know... the early bird catches the worm. But how many birds do you see flying around at 3am? That's not even for the birds! Time is man's worst enemy. Happy sailing!

[@HarborYachtTours]

Thanks for sharing

[@wcguthrie]

1 engine, 1 problem

[@stevegould1730]

1 problem = no propulsion. 😂

[@glennhand2593]

Gulf of America, baby

[@HarborYachtTours]

It’s got a nice ring to it