SHACKLETON DATA

POWER PLANTS

Four 12-cylinder, 60° Vee, pressure liquid-cooled, two-speed, single-stage supercharged Rolls-Royce

Griffon engines producing 1960 hp (2435 hp with water methanol) at maximum power.

  Variants        
MR I/T.4 MR 2 MR 2 MR 3 MR 3* AEW/T.2
    Ph I/II Ph III Ph IIII Ph III
57/57A 57/57A 58 57A 58 58

*and two 2500 lb thrust Rolls-Royce Viper 203 power plants.

PROPELLERS

De Havilland 13 ft-diameter counter-rotating, constant-speed, fully feathering units.

FRONT: Left-hand tractor DF 1 60/3 34/1 or DB 171/334/1 with basic setting and fine pitch 23°, feathered 90°.
REAR: Right-hand tractor DF 1 60/336/1 or DB 171/336/1 with basic setting and fine pitch 24°, feathered 91°.

FUEL SYSTEM

AvGas 100/ 130 NATO F-18.

Tank Capacities (gallons)
  MRI/T.4 MR 2 MR 2
    Ph I/II Ph III
Tank 1 2 x 497 2 x 497 2 x 497
2 2 x 541 2 x 541 2 x 570
3 2 x 297 2 x 297 2 x 297
4 2 x 311 2 x 311 2 x 311
5      
6 (tip) - - -
Totals* 3292 3292 3350
  T.2/AEW MR3 MR3
    Ph 1/11 Ph III
Tank 1 2 x 497 2 x 539 2 x 539
2 2 x 570 2 x 541 2 x 573
3 2 x 297 2 x 297 2 x 297
4 2 x 311 2 x 311 2 x 311
-   2 x 185 2 x 185
6 (tip)   2 x 251** 2 x 253**
Totals* 3350 4248 4316

* all variants could carry 400 gal auxiliary tanks in the bomb bay.

** wing-tip tanks nominally 256 gal but actual capacity varied.

DIMENSIONS (ft)

  MR I/T.4 MR2 MR3
Wing span 120 120 119.83
Length 77.5 87.3 87.3
Height 17.5 17.5 23.35
Tailplane span 33 33 33
Wheel track 23.75 23.75 23.75

AREAS (sq ft)

  MR I/T.4 MR 2 MR 3
Wing (inc. ailerons) 1421 1421 1458
Ailerons 110.1 110.1 133.4
Flaps 146.96 146.96 146.96
Tailplane(inc. elevators) 285.4 285.4 285.4
Elevators 87.3 87.3 87.3
Fins 116 116 116
Rudders 106.4 106.4 106.4

WEIGHTS (lb)

  MR 1/T.4 MR 2 MR 2/T.2
      Ph III
Empty 49,600* 51,400 59,000
Loaded (normal) 82,000 84,000 89,000
Loaded (max T/0) 86,000** 86,000 95,500
Landing (normal) 72,000 72,000 80,000
Stores load (with full fuel) Approximately 6000 lb    
Stores load (max) 12,000 15,000 15,000
  AEW.2 MR 3 Ph III (Viper)
Empty 58,800 57,800 64,300
Loaded (normal) 89,000 85,000 95,000
Loaded (max T/0) 96,100 100,000 108,000***
Landing (normal) 80,000 86,000 88,000
Stores load Approximately 6000 lb
(with full fuel) stores load 12,000 12,000 (max)  

* Ph II T.4 54,500 lb

** Grapple aircraft 87,500 lb

*** MR 3 Ph III (non-Viper) 104,000 lb

PERFORMANCE

Tables showing performance figures need to be used with caution because it is extremely difficult to ensure that the same parameters are being used when obtaining details from different sources. This particularly applies to range and endurance figures, where 'still-air range' usually means the range to dry tanks, but not always, while 'normal' range will have an allowance built in for diversion and/or contingencies. This allowance may be up to 20% of the total fuel, 20% of the 'off-task' fuel (in the case of maritime operations), or, in the case of some Avro calculations for the Shackleton, 10% of the overall fuel. Unless otherwise stated, range and endurance speeds/times assume 20% reserve of total fuel. Maximum speeds are almost meaningless in the case of maritime aircraft, but are included as approximate figures for reference purposes, and wherever possible all those quoted have been cross checked to ensure that they are strictly comparable.

  MR I/T.4 MR 2 MR 2 AEW.2 MR 3*
      Ph III    
Max speed @ 12,000 ft** 294 299 286 262 297
Max cruise @ 10,000 ft ** 245 249 249 - 253
Long-range cruise @1500 5000ft 180-200 mph depending on weight
Landing speed** 114 114 116 116 118
Stalling speed** 88 88 92 92 96
Initial rate of climb (ft/min) 1005 920 900 900 850
Initial rate of climb (3 engine)(ft/min) 592 495 463 460 200
Ceiling (ft) 20,700 20,200 18,800 - 18,600
Range (nm)*** 2160 1980 1720 - 2300
Radius of 4 hr patrol (nm) 780 700 670 - 970
Endurance (hrs)(20% reserve) 14.8 14.6 13 13 16
Max still air range (nm) 3090 2900 2780 2700 1660
T/O distance (ft) to 50 ft using Water Methanol 3750 3750 5460 - 5550

* Mk 3 Ph III (Viper) had improved T/O performance (4750 ft to clear 50 ft screen), but reduced range and endurance.

** speeds in mph.

*** at 5000 ft at 190 mph (full load - 20% reserve)

Data Conversion

1 nautical mile (nm) = 1. 136 statute miles
1 mile/hour (mph) = 0.88 knots
1 gallon (gal) = 7.2 lb
1 foot = 0.3048 metres
1 nm = 1.828 kilometres
1 sq ft = 0.0929 square metres
1 ft/min = 0.005 m/sec
1 mph = 1.61 km/hr
1 lb = 0.454 kg
1 gal = 4.546 litres

This page was produced by John (Mo) Botwood and has been reproduced with the kind permission of the Botwood family.