Fuel use of twin Outboards compared with inboard Petrol

[DAKA]

I had a look on a MotorCat 29, very spacious and trail able.

It ran on twin 60 HP outboards.

I presume that would be very economical compared with a 230 HP inboard.

The MC29 has a similar amount of space as a Nimbus 31 and is trailable so long passage cruising can be economical (via Motorways).

 

[lookout]

err wow, didn't you find the cockpit teensy? I did. Wasn't impressed space-wise at all; and for sure the engines are small, but she does chuckup a lot of wake for a small cat.

 

[DAKA]

For a boat that can be trailed it is massive.


Most trail boats are little more than a cuddy.
Bayliner manage the biggest illusion of space but you need 230 hp.
This MC29 was huge, a real size boat that only needed twin 60 hp outboards.

I used to have 70 hp on my speed boat !

I presume twin 60 HP outboards will use less fuel than an inboard 150 hp ?????? but if they use the same as an inboard 200-230 that is different.

Not bothered about wake, either slow in harbour rivers or fast out of everyones way.

 

[DAKA]

Anyone know how much they cost new/secondhand ?

I sat drinking his wine and felt too embarrassed to ask how much his boat had cost /forums/images/graemlins/blush.gif

 

[Nautorius]

I am sure Victor is busy so I will answer on his behalf. Firstly Motorcats are displacement cats which mean they can run with much lower HP. New they are:

MotorCat 30 Offshore packages with twin 50hp or 75hp petrol outboards:
from £65,957.45 +VAT = £77,500.00

MotorCat 30 Estuary packages with twin 25hp petrol outboards: from £62,553 +VAT = £73,500.00

MotorCat 30 River packages with twin 9.9 petrol outboards
from £59,531.91 + VAT = £69,950.00

MotorCat 30 Lake/broads package with "eco friendly" twin electric outboards and backup generator:from £63,829.78 +VAT = £75,000.00

here is one for £55k + VAT, (which is probably Victors ex-demo) and another Here which has been for sale for a while.

Cheers

Paul /forums/images/graemlins/smile.gif

 

[DAKA]

Thanks for that Paul /forums/images/graemlins/smile.gif

It could explain why lookout was disagreeing with me.
The MC30 is an open cockpit cat.

The MC29 is a closed cockpit boat similar to the Nimbus 31.
It is taller, narrower and looks like a mono hull until you look under it.

It had a huge amount of space.

I should have taken photos but I didnt want to appear rude, we were invited to look at the Teak Deck and ended up drinking his wine, I was impressed with the boat and it could well suit our future use.

Cheers

Pete
edit
Found a link, this is what I went on, very big inside.

http://www.motorcat.com/ph_gm29.html

 

[Chris_d]

Not sure about the ease of trailering, cats need a very special trailer and its not easy to load. Also because a cat is over the maximum allowed width and length you have to contact the police everytime and advise them of your route etc.... I know Victor said he had to do this with his demo MC29, not exactly hassle free, freedom of the open road and all that.

 

[DAKA]

There had to be a catch /forums/images/graemlins/frown.gif

Still a big boat, I only need to move it twice a year so could still be perfect did he mention what he towed it with ? a Landrover/ Range Rover or does it need a 7.5 tonne truck ?

 

[landlockedpirate]

According to the specs on website, its perfectly legal to tow.

In a nutshell max trailer size is:

7ft 6in wide and 21ft long (excluding drawbar and overhang behind the rear axel), you can also overhang 6in either side without escorts or wide load signs. Max weight is 3500kg, so as long as wou dont let wifey put too many pairs on shoes aboard you should be OK.

With the state of red diesel I think cats could be an answer for more econonical cruising. Easily towable with a Landrover/Rangerover/Disco etc.

Mark /forums/images/graemlins/ooo.gif

 

[Rum_Pirate]

I use two 90 hp outboards to get this wake on a 22'0" Mako at 3900rpm they provide the boat with about 2mpg once it is up on the plane.

Now repainted

 

[hobiecat]

MC29 and MC30 can be trailed on an ordinary flatbed trailer if you want. Early trailers were too cumbersome but this has been rectifed. First MC29s that arrived did not have sprayrails fitted. We have first inboard diesel MC29 at show and the first ever MC29 is doing "try a boat"(outboards). We are fast developing our product line. There is a hell of a lot to learn and virtually no information is published.

There is a used MC30 that came from Ireland for sale in local brokers in Emsworth. It arrived about 2 months ago. We dont really get too involved in used boats. All owners tend to hang onto their Motorcats and beocme very enthusiastic. 2 owners insisted they help us full time at the show - why not chat to them about their experiences?.

We have first ribcat 6.2 planing hull (just sold) at show and is off to Ireland. We helped develop this boat and it goes like stink with 40 knots from 2x75 ETECS. It will be shown on TV in show preview programme. We will shortly fit a hydrofoil between hulls to improve performance further. We will also have some low priced Zapcat type boats (Phatcats). They work on inflatable rails and go really well with 30hp fitted. Make fun and lively tenders for bigger boats. Cost £1600 exc engines.

Motorcat products (MC Products) are also main installers for tek dek and the manufacturers will be represented on our stand.

An opportunist plug over from me - come and have a chat on J400 about catamarans or tek dek. For inforamtion the wine usually starts flowing towards the end of the day.

 

[Chris_d]

Ok confusion over exact model I see you were looking at this http://www.motorcat.com/tec29.html
and I was refering to this http://www.michaelbriant.com/motorcats.htm, the 29 is a foot narrower so just legal, if a bit on the long side. Should be ok with a discovery or similar. I agree these will be the way forward and the twin outboards make a lot of sense, although the security issues and fuel availability still might swing me in favour of an inboard diesel.

 

[DAKA]

what a fantastic cruising ground you have,

cruise 3900 rpm at 2 mpg gulp .

thanks also to landlocked, plan back on track /forums/images/graemlins/smile.gif

 

[hobiecat]

How about a more efficient 40 knot cat version of your mako with 2x75

 

[BrokerBen]

If you're interested in that type of boat take a look at the Jeanneau Cap Camarat range too, they are very attractive and there are some great boatshow deals coming up /forums/images/graemlins/wink.gif

Attached pictures look to have been taken in a nice area, does the sun always shine everywhere else?

 

[hobiecat]

I have always liked the cap camaret range. They look especiallly good with a bit of tek dek in them /forums/images/graemlins/smile.gif

 

[Rum_Pirate]

Erm, it looks good (is that an inflated tube on the side?) , but suspect that the price tag may be a trifle above my pocketbook.
Also I'd have to fork out a few bucks more for a T-top.

I just turned down (although I was tempted) +/-£6,000.00 for mine. Mako over 11 years old, engines Mercury (never again) manfactured in 1999.
Mind you I have just spent +/-£2,550.00 on a respray (awlgrip) in and out plus repairs and new T-top covering.

 

[Bajansailor]

I saw Victor's Motorcats at the little multihull boat show in Gosport in June (and the older one at Southampton Boat Show previously), and I think they are very fine motor cruisers, and VERY fuel efficient to boot!

Here is another displacement hulled power cat with twin outboards - she was built in aluminium here in Barbados 7 years ago. The owner operates kayaking and snorkelling trips, and he specifically did not want to have the extra initial cost and complexity of inboard diesels.

This 'Kayak Kat' has twin 115 hp 4 stroke outboards (she did have 2 x 70 hp initially, when that photo was taken) which have proven to be very reliable generally - they are in daily use during the winter season, and about 3 days a week during the summer. Although she is 49' long, and 16' wide, she can still manage about 23 knots at full chat when light, and about 14 knots with 40 passengers on board.
Even when loaded she can manage just under 2 mpg with the throttles eased back a bit.
Not as good as Victor's cat who is phenomenally fuel efficient, but still better than most of the larger monohull boats with outboards!

(Before some folk jump on me for having posted these photos before in another thread - I thought that some forumites might not have seen them before, and that they could be relevant to the discussion re displacement power cats).