The
South Devon Railway
D7612 Class "25" Diesel Loco
D7612 on a private charter in 2000
D7612 in the sunshine at Totnes Littlehempston during "Everything Goes"
Class 25 (325 in class)
Type 2
Maker
British Rail at Derby, Darlington and Crewe also Beyer Peacock
Introduced from
1959
Original Numbers
D5151-5299,7500-7677
New numbers
25001-325
Engine
Sulzer 6LDA28-B
Engine bhp
1,250hp at 750rpm
Transmission
Four AEI 253AY nose suspended traction motors
Maximum current
2340 amps
Maximum tractive effort
45,000lb
Minimum curve
4 1/2 chains
Route availability
RA5
Max speed on B.R.
75/90 mph
Driving wheel diameter
3ft 9in
Gear ratio
67:18
Fuel capacity
630 gal
Coolant water capacity
187 gals
Lubricating oil capacity
100 gals
Weight in working order
70-74 tons
© South Devon Railway Trust 2000
