Super Small Surface Drive?

[Scand]

Looking at a project now were it would be nice to replace an AlphaOne drive with a small surface drive. The power is a CMD 1.7l (120mhp@4400rpm) diesel, so both the Arneson ASD6 and the Trimax G-Drive would be over kill both from an engineering and price point of view.
Does anyone know of other smaller surface drives?

[Techteam]

http://www.felleryachting.de I think these guy's were developing a range of smaller surface drives

[Ben]

Might try Lansing Marine.

http://www.lancingmarine.com/LM_Transom_drives.pdf

[Scand]

Originally Posted by Techteam

http://www.felleryachting.de I think these guy's were developing a range of smaller surface drives

This looks quite interesting, 120kW@5500rpm, but it has a CV joint rather than a universal joint. I am sure they will find that the CV joints don't work well in surface drives due do the high cyclic loading.

[Scand]

Originally Posted by Ben

Might try Lansing Marine.

http://www.lancingmarine.com/LM_Transom_drives.pdf

Thanks. Has anyone tried this?
For this size of drive is nice to have a std outboard spline so one can use available outboard/sterndrive propellers.

[cosworth mirage]

I thought the trimax used a cv

[Scand]

I dont think so...
Trimax drives normally fixed, and can not be dynamically trimmed.
(although i wonder if the drives fitted to Ugland's BP Valentino had dynamic trim? Class 1 speed record in 1993 with seatek's)
Sometimes there is a cardan shaft with universal joints between the drive and the gearbox.

[cosworth mirage]

yep sorry no cv but are adjustable and have a quote: adjustable sperical thrust bearing to allow for the movement.

I must have been misinformed by the crew of buzzi buzzard then back in the 90,s when we had the offshore race here in falmouth as i questioned them on there drive unit.