(Also see Lenape).

-This company started its activity in Avondale, NY in 1914, and from 1917 it continued in Keyport, NY.

-The first known engine of this brand is the water-cooled 85/90 hp with six inline cylinders, in the same year 1914.

-It had a displacement of 449.16 cu in and the engine weighed 430 pounds.

-This engine gave the mentioned power at only 1400 rpm.

“Aeromarine 85/90 hp”

-The geared version of this engine was the K-6, that appeared the following year, 1915.

-It gave 100 hp at 2000 RPM, and it had exactly the same displacement, only the weight increased five pounds (435) because the front of the engine had changed.

-The reduction ratio is .571.

“Aeromarine K6”

-The B-45 and B-90 are from the same year 1915, with similar powers and sizes but with a difference in the specifications: with eight cylinders in V, the B-45 had two blocks at 45^o and the B-90 at 90^o, as showed below.

“Aeromarine B-45, rear side”

“Aeromarine B-90, rear view”

-The B-45 gave 150 hp at 2275 rpm and 170 hp 2635 rpm, with gear and water-cooled.

“Aeromarine B-45”

-The B-90 gave 148 hp at 2275 rpm and 166 hp at 2635 rpm and it had eight cylinders in V with a displacement of 423.2 cu in.

-The B-45 and B-90 engines were known as the "B" type. They were designed by J.F. Willard.

“Aeromarine B-90”

-Another known engine was the "100 hp". The power was obtained at 2300 rpm, with gear, and the propeller spinning at .571 of the crankshaft speed. It had 8 cylinders in V.

“Aeromarine 100 HP”

“Aeromarine 100 HP, rear view”

-The water-cooled 100 hp had a Zenith carburetor and Delco dual ignition.

-The Aeromarine D-12, was a water-cooled 12-cylinder V engine. It gave 150 hp at 1400 rpm, with 898.32 cu in of displacement and weighed 750 pounds.

-It had separate casted cylinders and two Zenith carburetors. There is no image available.

-In 1917 appears the L-6 giving 130 hp at 1625 rpm and 215 hp at 3000 rpm. It had a displacement of 553.25 cu in.

“Aeromarine L-6”

-This engine had six cylinders in line. The same year it had a successor, the L-6-D, where the letter "D" stands for direct propeller drive.

-Some new illustrations of the L-6, first the exhaust side without pipes or manifolds, observing the lateral engine cleanliness.

“Aeromarine L-6”

-And a front and rear view of the same engine.

"Two views of the L-6"

-Another geared version was the L-6-G. All these engines had two Duplex Stromberg carburetors feeding three cylinders each. The firing order, as in most inline six-cylinder engines, was 1-5-3-6-2-4.

“Aeromarine L-6-D”

-The L-8 with eight cylinders in V, was derived from the L-6 engine and had the same cylinder sizes. They are from 1918 and gave 192 hp at 1750 rpm.

“Aeromarine L-8”

-Later the "U" series engines appeared. The U-6 and U-8 were improved versions of the L-6 and L-8. The U-8-D gave 220 hp at 1800 rpm.

“Aeromarine U-8”

-There also was the version D and G. For more information see the file Sarah B. Clark (3250 / 452.8) .USNA II.

“Aeromarine U-8-D”

-Now another view of the U-8-D engine, an eight-cylinder version of the U-6-D and the parts are interchangeable between them.

-The U-6-D gave 147 hp at 1750 rpm while the U-8-D in turn was an improved version of the L-8.

“U-8-D, with 228 HP”

-228 hp was reached at 1800 rpm. And the eight cylinders were in V.

-This engine had a new development with the U-873 in the year 1923. It reached 257 hp with the same revolutions of the engine mentioned before.

“Aeromarine U-873”

“Aeromarine U-873”

-There were less-known engines such as the A-L (1920) that had 12 cylinders at 45° in V. It gave 450 hp at 1800 rpm. And the T-6 with 200 hp at 1630 rpm and a maximum power of 255 hp at 1800 rpm. They were followed by the NAL.

-The NAL was a strange engine, based on the Liberties but with Aeromarine cylinders.

“Aeromarine NAL”

-The NAL was a 12-cylinder engine but with the cylinder blocks at 45^o (60^o is common in 12V engines). It gave 450 hp.

-The S-12 was a larger 12 cylinder-engine that was built in 1924. It reached 754 hp at 2000 rpm.

-The S, was an inline four-cylinder, air-cooled engine that gave 100 hp. Apparently they did not enter in production.

-The T-6 had inline upright cylinders. It was liquid-cooled and gave 250 hp at 1800 rpm.

“Aeromarine T-6”

-Towards the years 1932-33 they also manufactured air-cooled radial engines, first the small AR-3s with 40 hp and 50 hp, or the AR-5s with 65 hp. For the moment the existence of radial engines with 7 and 9 cylinders is not confirmed, although there are engines with 85 hp and 125 hp, based on the first AR-3 parts.

“Aeromarine AR-3”

-The AR-3 was built by Burnelli as AR-340. Lenape also built them (see) as the "Papoose".

-It seems that they built an AR-7, following the AR-5 and also a hardly known B-9 with 9 cylinders giving 115 hp at 1950 rpm.

“Aeromarine B-9"

-In 1924 Aeromarine sent the AL-24 model to the Army Air Service Eng. Div. for analysis and testing. The model is not shown in the main text.

“Aeromarine AL-24”

-This engine was designed in 1921 to be mounted on large long-range bombers. 75% of its parts were from Liberty engines.

-But it was unsuccessful due to the W-1 design by te Army Service itself.

-From Appendix 7: An opposite view in relation to the picture in the main text for the six-cylinder inline engine with 85-90 hp.

-Two characteristics are a split engine bed and the superimposed crankcase. We can see the double seam of fasteners.

“Aeromarine inline” (PiP)

From appendix 10: During the years 1928 and 1930 the company was known as Aeromaine-Klemm, as they built the German Klemm aircraft in the US.

-El Aeromarine de 85/90 HP, tiene inscrito en el lateral izquierdo de la bancada del cigüeñal “Model AQG”.

The Aeromarine of 85/90 hp, has an inscription on the left side of the crankcase: "Model AQG".

"The AQG model"

-We have an illustration of the engine that gives 100 hp at 2,000 rpm, which is only mentioned in the main text without picture.

"100 hp model"