William Beardmore's "Beardmore Aero Engines Ltd." in Scotland, was a recognized firm that began in 1914 with the construction of its first aero engine, obtaining Austro-Daimler licenses for the 90 and 120 hp engines, improving the latter including dual ignition and double carburetor.

-Soon it reached 135 hp.

"Logo"

-Several thousand 120 hp engines were built until 1917.

-They put two Beardmore carburetors instead of one.

-The Bosch lubrication box had six pistons for the main bearings, the rest by splash lubrication.

"Beardmore 90 hp"

"Beardmore 90 hp"

-The following illustrations belong to 120 hp. First we have a rear view where we see the famous lubrication box. They will not use not only this brand, but others too, as we will see throughout this publication.

"Beardmore 120 hp"

"Beardmore 120 hp"

-In 1915 the company was registered as “Beardmore Aero Engines Ltd.”.

Beardmore 120 hp

-At that time, Beardmore-Halford-Pullinger constituted "BHP" that developed the famous "Puma".

-But besides F.B. Halford, collaborated with Beardmore to improve their engines.

-From this Scottish company in Glasgow came the 160 hp engine (also manufactured by Arrol-Johnston, between others.

-In fact, it was an evolved 120 hp up to 200 hp.

"Beardmore 160 hp"

-Actually we see no external differences between the 120 and 160 hp engines.

-Beardmore was commissioned to build, within war effort, about 1,500 ABC "Dragonfly" engines as a subcontractor, but they did not have time to deliver any before the end of WWI in 1918.

-And between 1919 and 1922, with the 160 hp experience, appeared the 840 hp “Cyclone” with 6 inline upright cylinders and long stroke.

-The Beardmore engine located in a German museum where we see the two magnetos -unlike the other Beardmore engines- are at the front. It delivered 170 hp at 1,200 rpm.

"Beardmore from 1916-18"

-This engine was mounted on the RAF BE2b.

-In 1917 Beardmore made a nice ad for their 6-cylinder engine, possibly the 120 hp.

"Advertisement including wings"

-Three years later, the ad was already less elaborate, more a pen drawing. Inside it we see the 500 hp V12 engine.

"Beardmore ad from 1920"

-The 6-cylinder version, but with inverted cylinders was called Typhoon. It gave 850 hp.

"Cyclone"

-From the Meteor and Whirlwind engines, we have references, but we have not found details.

"Typhoon"

-Both engines evolved from 6 to 8 cylinders with heavy oil -Diesel-.

-At that time the name changed, the Cyclone became Tornado with power limited by the rpm: 585 hp at low speed: 900 rpm. They were used on airships. And Typhoon became Simoon.

-Beardmore's Tornado was used on the British R-101 airship. It had two engines.

-From all these engines there appeared improved versions like I, II y II (or rather: MarkI, MarkII y MarkIII).

"Beardmore Tornado"

"Tornado from the R-101"

"Beardmore Simoon"

-In the year 1922, there was a Diesel engine of an unusual Beardmore design. It was a horizontally-opposed, twelve-cylinder engine.

"Beardmore C-1"

-This engine was water cooled and we clearly see the two single-block injector pumps on the rear of the engine. One pump for each cylinder row.

-Now we insert some Breadmore engine pictures, which we obtained recently.

-The Cyclone illustration obtained from a German publication is showed below.

"Beardmore Cyclone"

"Beardmore Tornado"

-And from a British publication, we show the engine that was mounted on the R-101 airship, classified as Beardmore C.I.

-And from another British source “Modern Aircraft”, we reproducer the 950 hp, six cylinder that looks like a Cyclone.

"Six-cylinder Beardmore"

-Curious is the cross section, that shows the block with an exceptional width on both lower sides.

-Here is a new illustration for the 120 hp. With its lubrication box clearly visible at the rear.

"Beardmore 120 hp"

From appendix 6: In the year 1926 they showed new images of the Beardmore “Cyclone” that gave 900 hp at low engine speed, 1350 rpm. They were intended for airships.

“Beardmore Cyclone”

-The Cyclone was a six-cylinder engine while the Tornado had eight cylinders.

-The Tornado engine were installed in the famous R-101 airship just as we can see in the illustration below. It delivered 650 hp.

-The following Tornado model was the Mark 1 that gave 650 hp at 1100 rpm with a maximum power of 720 hp. It ran on Diesel heavy oil.

"Beardmore Tornado del R-101"

"Beardmore Tornado Mark 1"

"R-101 gondola view"

From Appendix 10: We obtained an illustration of two Beardmore "Cyclone" views.

-This model has upright cylinders. It had 6 cylinders inline.

-This engine gave rise to the eight-cylinder version called "Tornado". See main text.

"The Cyclone shown in two pictures together"

-Beardmore Tornado side view

“Beardmore Tornado seen from the right” (PiP-Flu)