Air of Authority - A History of RAF Organisation
Mechanical Transport AP2782A (Section 17) - Bomb and Torpedo Carrying Vehicles
Austin, 3 ton, 6x4, Model K3YX chassis, equipped for
bomb carrying
Crown Copyright© |
|
RAF Ref No | 16A/643 |
Engine | Austin, 6 cyl, petrol, OHV. Bore: 87.31 mm (3.437 in), Stroke: 111.12 mm (4.375 in), Capacity: 3.995 litres (243.8 cu in). Max BHP - 82 at 2,900 rpm; Max torque - 2,065 lbs/ins at 1,400 rpm. RAC Rating - 28.37 hp |
Transmission |
Clutch - Borg and Beck single dry plate Gearbox - 4 speed and 1 reverse. Ratios: 1st - 6.58 to 1, 2nd - 3.48 to 1, 3rd - 1.71 to 1, 4th - 1 to 1, reverse - 6.57 to 1: Auxiliary Box - 2 speed. Ratios - 1 to 1 (High) and 1.87 to 1 (Low). Rear axle - Overhead worm drive, ratio - 7.75 to 1. Overall ratios (High) - 51.0 to 1, 27.0 to 1, 13.26 to 1, 7.75 to 1, Reverse - 51.0 to 1. Overall ratios (Low) - 95.6 to 1, 50.6 to 1, 24.8 to 1,14.5 to 1, Reverse - 95.6 to 1. |
Performance | Max Speed - not stated; MPG - 7; Radius of Action - 210 miles |
Dimensions | Length - 22 ft 6 in (internal - 15 ft 0 in); Width - 7 ft 7 in (internal - 7 ft 4 in); Height - 7 ft 2½ in (internal - 6 in chock rails); WB - 12 ft 9 in; BC - 4 ft 0 in; G/C - 9½ in (rear bogie); TC - 57 ft 5 in (Right), 56 ft 8 in (left); Track - 5 ft 8-1/8 in (front & rear). |
Weights | Unladen - not stated; Laden - 7 tons 11½ cwt. |
Body |
Cab - All steel
construction; ventilator in back panel.
Bucket seats accommodating driver and one passenger. Driver's seat adjustable
(three positions). Cab top detachable. Body - Flat platform with hinged 6 in chock rails along the sides and the back, fixed chock rail at the front. All metal construction. Equipment - Mechanical tyre pump mounted on the offside of the main gearbox. Carrier for two four-gallon jerricans, one one-gallon oil can and a tool box. Leaf spring mounted towing hook. |
Suspension | Front - semi elliptical. Rear - inverted semi-elliptical spring pivoted at centre. |
Brakes | Foot, Hydraulic servo assisted on all wheels. Hand brake - mechanical on rear wheels. |
Wheels/Tyres | Dunlop two piece wheels or 6.00-20 3-piece/9.00-20 0r 10.50-20 |
Notes |
Steering - 'Bishop' Cam and roller, model 'DQ'. Also shown in AP2782, Group 4. |
Eagle, 5 ton, 4-whelled trailer, equipped for bomb
carrying
Crown Copyright© |
|
RAF Ref No | 16A/1137 |
Chassis details | See entry at top of this page |
Body | Flat platform with hinged 6 in chock rails along the sides and the back, fixed chock rail at the front. All metal construction. |
Dimensions |
Overall: Length (drawbar horizontal) - 21 ft 11½ in; Width -
7 ft 7 in; Height - 4 ft 0 in; Body: Length - 15 ft 3 in (internal - 15 ft); Width - 7 ft 7 in (internal - 7 ft 4 in); Loading Height - 3 ft 6 in; |
Notes | Also shown in AP2782, Group 4. |
Tasker semi trailer, 8 ton, 2-whell drop frame,
equipped for torpedo carrying
Crown Copyright© |
|
RAF Ref No | not stated |
Chassis |
Tractor unit - Bedford OXC, details of which
can be found in Group 3. Semi-trailer - Tasker drop-frame semi-trailer. |
Body |
Body - Trailer is fitted with a superstructure to
carry either: -
|
Dimensions |
Vehicle - Length - 35 ft 1 in; Width -
9 ft 1 in; Height - 7 ft 1 in. Trailer - Length - 21 ft 6 in; Width - 9 ft 1 in; Height - not stated. |
Weights | Unladen - 5 tons 2¾ cwt Laden (4 x Mk XIII) - 9 tons 13 cwt, (5 x Mk XII) - 9 tons 17 cwt:: |
Suspension | not stated |
Tyres | Four 10.50-20 singles (in-line) |
Brakes | not stated |
This page was last updated on 18/03/25©