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The TMP Type 12000 Marine Gearbox is available in the following types:-
Direct Drive ( in line)
2:1 Reduction. R/H Prop, ( 4.125" drop)
2:1 Reduction. L/H Prop, ( 4.125" drop)
Both variations of the 2:1 Reductions are available as Left or Righthand offsets.( 4.125" offset)
3:1 Reduction. R/H Prop. ( 4.80" drop)
3:1 Reduction. L/H Prop. ( 4.80" drop)

(Independant and Integral V-DRIVES Direct Drive and 2:1
Reductions were manufactured but are no longer available.
Some spares are still available.!!!)
SPECIFICATIONS

Details

Direct Drive

Reductions
Max Input Speed.

4000 r.p.m

4000 r.p.m
Max Input Torque.

100 lbs ft

100 lbs ft
Ahead Ratio.

1:1

2:1 & 3:1
Astern Ratio.

1: .833

2: 1.833 & 3: 2.833
Oil Capacity. (Main Box)

2 1/4 Pints

2 1/4 Pints
Oil Capacity. (Reduction)

N / A

1 Pint
Oil Type.

Engine Lubrication Oil

Engine Lubrication Oil
Oil Viscosity

Multigrade ( 20 SAE)

Multigrade ( 20 SAE)
Oil Pressure

95 to 100 p.s.i

95 to 100 p.s.i
Max Running Temp.

180 F

180 F
Normal Running Temp.

160 F

160 F
Rotation in Ahead

As Engine

  
Output Rotation in Ahead (2-pinion)

N / A

Opposite Engine
Output Rotation in Ahead (3-pinion)

N / A

AS Engine
Approx Weight.

30 Kgs

55 Kgs

Direct Drive

2:1 Reduction

2:1 Offset Reduction

3:1 Reduction