| Up
to 500 hours/year,low load factor usage planing hulls
vessels where typical full engine throttle operation is
less than 10% of total time. The balance of operation of
80% of full engine throttle or less. Marine
transmissions for use in long range pleasure cruisers,
sportfish charter boats/patrol boats do not qualify for
Pleasure Craft Service. |
Relatively
low hour usage (less than 1500 hours/year) where full
throttle operation is 2 hours out of 12. Typical
applications include planing hull vessels such as fire
boats, sportfish charter boats and patrol/customs boats.
This rating is also applicable to some bow and stern
thruster applications. |
Hour
usage of up to 2000 hours/year (for models MG-5114 and
smaller) and up to 3000 hours/year (for models MG-5141
and larger) with 50% of the operating time at full
engine rating.
Typical applications include planing hull vessels such
as ferries, fishing boats, some crew boats and also some
displacement hull yachts as well as some bow and stern
thruster applications. |
Hour
usage of up to 4000 hours/year with up to 80% of
operating time at full engine power. This duty
classification is for usage where some variations in
engine speed/power occur as part of normal vessel
operation.
Typical vessels include mid-water trawlers, crew/supply
boats, ferries and some inland water tow boats. |
For
use in continuous operation with little or no variation
in engine speed/power settings. Typical vessels include
fishing trawlers, tow/tug boats and ocean going vessels. |
A 
