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Posted: **Wed Jan 17, 2018 11:49 am**

Here are some figures for some historic engines by various makers. Often, the information is incomplete, some list stroke or rpm, others do not, but on the whole, it gives a good, general idea of power production. I would assume that most of these figures refer to INDICATED HORSE POWER.

Ericsson
bore : 8"; stroke : 3.9"; hp : .13 (1855)
bore : 8"; stroke : 3.9"; hp : .27 (1855)
bore: 10.25"+14"; stroke : 18", hp: 5 (1833) (ref. Ivo Kolin)

Thomas Steine
bore: 8"; hp: 1/4 (nominal)
bore: 12"; hp: 1/2

Heinrici
(note that the inch measurements for the Heinrici engines are appoximations)
bore: 40mm (1.5"); hp: 1/100 to 1/60
bore: 54mm (2.125"); hp: 1/50 to 1/40
bore: 65mm (2.5"); hp: 1/30 to 1/20
bore: 80mm (3.15"); hp: 1/17 to 1/12
bore: 100mm (4"); hp: 1/10 to 1/8
bore: 130mm (5.1"); hp: 1/5 to 1/4
bore: 150mm (5.9"); hp: 3/10 to 1/4
bore: 190mm (7.5"); hp 3/5 to 1/2

Bailey
bore: 14.625"; stroke: 6.875"; 106rpm; hp: 1.36

Rider
bore: 6.7"; stroke: 9.5"; hp: .78ihp / .3 bhp (1896)

Of all of these figures, the Rider engine data may be the most carefully determined.

Posted: **Thu Jan 18, 2018 2:09 am**

Another way of looking at these motors is about one ton per HP. When quoting the power of each motor it can be useful to list the weight of the motor, they were heavy.
Philips MP 1002 CA: Wt without fuel 30kg, power output at generator, 180W, 220V 50Hz AC, engine speed 1500 rpm.
Ian S C

Posted: **Thu Jan 18, 2018 3:06 pm**

Good info Alfista. They were sure were heavy when they only used cast iron.
Todat with alloys and special metals weight to HP will be quite different.
Trev

Posted: **Fri Jan 19, 2018 2:15 am**

Also a modern motor made to do work will be pressurized, even the Philips motor with very moderate pressure show a significant power increase over weight.
Ian S C

Stirlingengineforum.com

Horse power figures of some historic engines

Horse power figures of some historic engines

Re: Horse power figures of some historic engines

Re: Horse power figures of some historic engines

Re: Horse power figures of some historic engines