Topic: T12's or mfa 850's (Read 2065 times)

yewgarth · « **on:** September 26, 2015, 07:59:04 pm »

Hi, I've just Installed 2 graupner z units into my ormesby cross/ Ayton cross, I have 2 t12s and 2 mfa 850 but I can't decide what to install. Any help would be appreciated..
Kris

Shipmate60 · « **Reply #1 on:** September 26, 2015, 10:34:00 pm »

I would go for the T12's.
The 850's are good but spin about 9000 rpm and if doing any real work can get power hungry.
They are more useful in fast craft.

Bob

Buccaneer · « **Reply #2 on:** September 27, 2015, 04:36:43 pm »

I agree with Bob. I have used T12's in 4 Tugs/Coasters up to 48" long and have had plenty of speed/performance. MMM quote max revs as 4600 which is ample, and I have never had to resort to any gearing. I fitted an 850 to my Sea Queen to get a bit more pace over the original 800. Good for that but I was pushed to get 45 minute out of it. MMM sell the kit with the T12 so I think we can take that as a recommendation.

John

yewgarth · « **Reply #3 on:** September 27, 2015, 09:23:13 pm »

I seen what I thought were t12s In a portgarth and I thought they wouldn't pull the skin off a rice pudding but they turned out to be t24s running on 12v. I have read many posts on various forums and you are both right about going with the t12s, plenty of power and low drain. Many thanks for your comments, I'll let you know how my as trials go.
Kris

poll · « **Reply #4 on:** October 05, 2015, 08:13:17 pm »

Hi Kris this is one for you, put your t12s in your North on direct drive, put your brushless in the Ormesby don't forget your drives are
geared, the brushless work for me in the Kestrel.

John

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Author Topic: T12's or mfa 850's (Read 2065 times)

yewgarth

T12's or mfa 850's

Shipmate60

Re: T12's or mfa 850's

Buccaneer

Re: T12's or mfa 850's

yewgarth

Re: T12's or mfa 850's

poll

Re: T12's or mfa 850's