# TCDS E-258: Aircooled Motors Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Aircooled Motors Inc.
- Revision: 3
- Revised: March 6, 1952
- Product: Engine
- Data sheet PDF: https://openairdocs.org/files/sha256/46/2d/462d8e27395629e314d92b56b24773bb008a9abd4a1b55f00d64125225c5463a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8F013D724808ABC98525670C005725C6.0001
- Page: https://openairdocs.org/tcds/E-258

## Models (1)

As the data sheet lists them.

- Franklin 6V6-245-B16F

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1
Rev. No. 3
Reformatted 10/94
DEPARTMENT OF COMMERCE
CIVIL AERONAUTICS ADMINISTRATION
E-258
Revision 3
AIRCOOLED MOTORS
FRANKLIN
6V6-245-B16F (0-425-1)
March 6, 1952
AIRCRAFT ENGINE SPECIFICATION
Engines of models described herein conforming with this specification and approved data on file with the Civil Aeronautics
Administration are rated as airworthy for use in certificated aircraft, in accordance with pertinent aircraft specifications and the
manufacturer's installation, operation, repair and overhaul instructions.
Manufacturer Aircooled Motors, Inc.
Syracuse 8, New York
Model  Franklin 6V6-245-B16F
Type    60A Direct Vertical Drive
Rating
Maximum continuous,
hp, rpm, at sea level
pressure altitude 245-3275-S.L.
Take-off, hp, rpm, full throttle 245-3275
Fuel (Minimum octane aviation gasoline) 80
Bore and stroke, in. 4.75 x 4
Displacement, cu. in. 425
Compression ratio 7.4:1
Weight (dry), lbs. (includes fan and air housings) 369
C.G. location
Above rear face of crankcase, in. 11.6
Below top of fan housing, in. 17.8
From C.L. crankshaft toward carburetor, in. .4
Driveshaft end Special Integral flange-has 3 3/8 in. threaded holes on 3 12/16 in. circle.
Carburetion: Stromberg PS-7BD carburetor
Setting AMC No. 15554
Ignition, Dual Scintilla S6LN-22 magnetos
Timing, °BTC 30
Spark Plugs AC LA-47
Certification Basis Type Certificate No. 258
Production Basis Production Certificate No. 9
NOTE 1. Maximum permissible temperatures are 500°F, 300°F, and 220°F for the cylinder head, barrel, and oil inlet
respectively.  The cylinder head temperature is measured with a well-type thermocouple.
NOTE 2. Carburetor fuel pressure limits, 10 to 14 psi.
NOTE 3. The following accessory provisions are provided. Maximum Maximum
Drive Directions  Torque  Overhang
(C = Clockwise, Drive Speed (X (in. lbs.) Moment
Accessory Type Pad CC = Counter Clockwise) crankshaft  RPM) Cont. Static (in. lbs.)
Starter AND 20004 C 1.000:1 6000 100
Generator AND 20002 C 2.368:1 500 2200 150
Vacuum and Hydraulic pump AND 20000 C 1.125:1 100 800 35
Governor AND 10010 C 0.833:1 125 2200 35
Fuel Pump AND 20003 CC 0.750:1 25 450 10
- END -
```

## ADs

None name its models.

## STCs approved under this data sheet (2)

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc.

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