General Information

The general description  out of the Pilot's Handbook of Flight Operating Instructions is as follows:

The TBM Avenger - Model 3E is a single engine, midwing, all metal monoplane of semi-monocoque construction.  It is designed as a torpedo bomber for carrier or land based operation.

The crew consists of three members, pilot, turret gunner who is also the radioman and a bombardier who is also the radar operator.

The wing is of full cantilever construction, with an outer panel folding arrangement of the stand-on-edge and fold-straight-back type.

Alighting gear is conventional and fully retractable.

The Wright Cyclone C-14BB ( R-2600-20), 14 cylinder radial, double row, air cooled engine drives a three-blade Hamilton Standard Hydromatic Propeller.  The engine is equipped with a single stage, gear driven, two-speed supercharger, and a Stromberg Injection Carburetor.

The over-all dimensions are as follows:

Span………..54’2”

Length (Three Point Attitude)……………39’5 11/16”

Height (tail up)…………………….16’5”

Height (in normal position at rest) ………..15’5 1/32”

Height (wings folded)……………16’5”

Width (wings folded)…………19’

Landing Gear Tread (width between tire centerlines)………..10’10”

Engine

The airplane is powered by the Wright-Cyclone 14 Aircraft Engine Series C14-BB Model R-2600-20, manufactured by the Wright Aeronautical Corporation.  The engine is a 14 -cylinder, staggered two row radial air cooled type.  The propeller is driven at a ratio of 16 to 9 crankshaft speed by means of reduction gears.  The supercharger is of the two speed, single stage, centrifugal type, having an impeller which is driven at a ratio of 7.06 to 1 when operating in LOW blower, and a ratio of 10.06 to 1 crankshaft speed when operating in HIGH blower.  The carburetor is a model PR48-A3 Stromberg injection carburetor, incorporating automatic altitude mixture control and idle cut-off.

Fuel System

Use grade 100/130 fuel in accordance with AN Specification AN-F-28.  The fuel is carried in the wing center section in three tanks equipped with self-sealing liners.  A droppable fuel tank can be carried in the bomb-bay and under each wing.  The maximum capacity of the tanks is indicated on their respective filler caps and is approximately as follows:          

 

Tanks

U.S. Gallons

Center Main

145

Left Main

90

Right Main

90

Bomb Bay non-droppable (Self-Sealing)

212

Bomb Bay Droppable

270

Droppable Left Wing

58 or 100

Droppable Right Wing

58 or 100

These quantities do not allow for expansion space.

 

Flight Limitations and Restrictions

 

  1. Permissible accelerations and speeds at various gross weights are as follows:

 

Gross weight in Pounds

Permissible positive acceleration

Permissible Negative Acceleration

Permissible Speed Knots (Indicated)

13,000 and less

4.6g

2.0g

315

13,500

4.4g

2.0g

315

14,000

4.2g

2.0g

315

14,500

4.0g

2.0g

315

15,000

3.8g

2.0g

305

15,500

3.6g

2.0g

295

16,000

3.4g

2.0g

285

16,500

3.2g

2.0g

275

17,000

3.0g

1.9g

265

17,500

2.8g

1.8g

255

18,000

2.6g

1.7g

245

 

  1. When turbulent conditions are known to exist, or can be expected, speeds must be reduced and pull-outs must be executed with due regard for increase acceleration resulting from this turbulence.
  2. Do not use flaps at speeds greater than 130 knots (150 mph) indicated air speed
  3. Do not use full throw of ailerons at speeds greater than 200 knots (230 mph) indicated air speed.  At higher speeds aileron deflection shall be limited to that attainable using a control force no greater than that required for full throw at 200 knots (230 mph)
  4. Do not lower landing gear in excess of 200 knots (230 mph) IAS, and do not raise in excess of 150 knots ( 173 mph) IAS.
  5. All acrobatics are strictly prohibited in this airplane.
  6. Voluntary spins are not permitted in this airplane.
  7. Glide bombng may be carried out with bomb bay doors open or closed, with landing gear extended or retracted subject to the speed limitations given above but steep prolonged dives are not permitted in this airplane.
  8. Maximum recommended values of gross weights for various types of operation are as follows:

 

Landing, Average Fields

15,500 lbs

Landing, Prepared Runways

16,000 lbs

Take-off, Prepared Runways

17,600 lbs

Arrested Landing

15,500 lbs

Catapulting

18,100 lbs

 

These limitations may be supplemented or superseded by instructions included in Service publications.

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