Aerojet Marine Inboard Engine Manual Directory

Aerojet Marine Propulsion Unit Manuals

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Boat Motor Owner Operation, Workshop Service, Repair and Parts Manuals Directory

Aerojet 44 cubic inch 4-cylinder 4-cycle multi use motor

The Aerojet engine has many industrial and equipment applications including cement mixers, ditching machines, hoists, electric welders, generator sets, portable carpentry and machine shops, pumps, and hydraulic power units. In addition, the engine is used by several manufacturers of generators and pumping equipment for the Armed Forces.

Model No. 1 in the table below is the basic, or stripped engine. Other models numbered 2 through 12 have basic points of difference among the various models, along with a wide variety in optional equipment that was available in the standard models.

The Aerojet Marine Engine with Vee-Drive Propulsion

Advertised as a lightweight 220-lb. marine engine and drive unit, the Aerojet offered 26.5 HP @ 5,400 RPM, and vee-drive propulsion with reverse and reduction drive which was sold complete with shaft, rudder, rudder mount, remote control, steering cable, ammeter, and oil pressure gauge.

Aerojet General Corp. Cincinnati, Ohio. Subsidery of General Tire and Rubber Co.

Aerojet - Engine & Propulsion Unit Manuals

1952-1955 Aerojet Marine Manuals Directory

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MODEL DESIGNATIONS AND DIFFERENCES

Note (*1) Cast Iron Crankshaft
Note (*2) Steel Crankshaft
Note (*3) Olive Drab Lacquer
Note (*4) Yellow Lacquer

Model #	Aerojet Part #	$ USD	Model / Manual ID	Manual Type
Aerojet 1	R-209905-2	$24.98	aerojet44smpl	- Engine - Service Manual & Parts Catalog 103 pages pdf
Aerojet 2	C-206195
Aerojet 3	C-306763
Aerojet 4	B-206402 1 W-305324 2
Aerojet 5	C-304458
Aerojet 6	C-304478 3 W-305252 4
Aerojet 7	C-304476
Aerojet 8	C-304482
Aerojet 9	C-305535
Aerojet 10	C-304720
Aerojet 11	C-304822
Aerojet 12	C-304926
Aerojet	Vee-Drive	$14.98	aerojet44vdrive	- Vee-Drive - Replacement Parts Catalog

In 1954, the Aerojet marine propulsion system was offered to the public at the list price of $695.00. It was stated to weigh 220 lb. and propel 12 to 20 foot boats up to 30 mph with its 4-Cycle 26 1/2 hp motor and reverse reduction v-drive, all while saving 50% in fuel costs relative to comparable outboard motors.

The Aerojet General Corporation offered this complete kit, including the 4-stroke 7.0: 1 compression ratio engine with overhead valves and camshaft configuration, coupled to the Vee-Drive propulsion unit. It was installed as standard equipment by some boat manufacturers such as Lone Star Boats.

It was advertised as a lightweight marine engine sold complete with shaft, rudder, rudder mount, steering cable, ammeter, and oil pressure gauge.

The AeroJet inboard motor was derived from the 4-cylinder Crosley automobile engine with tooling and production rights which were acquired by Aerojet in 1952 after the Crosley auto company ended production. At the time, AeroJet was primarily interested in producing engines for government use, and the engine block was recast with the AeroJet name molded into the block where the Crosley name had formally been.

Crosley Military Engines would still show up with manufacturing dates of 1953 and Crosley still molded into these blocks as Crosley Corporation still owned interest, and common stock was still held by investors, so filling orders with existing Crosley blocks made sense.

AeroJet ended production around 1955 when it sold the production rights and tooling to Fageol who continued forward with their own versions of inboard and outboard boat motors.

Resources: Aerojet Marine Propulsion Units