[ARC5] AN-Ranges - engines.

[Kenneth G. Gordon]

On 4 May 2018 at 19:06, Peter Gottlieb wrote:

> They had that at Dayton last year.
> 
> I still am hugely skeptical about the 60 RPM generator.  It would have to be 
> huge to get enough change in field at the poles, and making an engine that did 
> that, including a humongous flywheel with enough stored energy for all the poles 
> in between combustion pulses would make it pretty impractical.

Hmmm....I just found this:

www.oldengine.org/members/frank/kohler2.htm

In 1924, about 30 years before Woody and I were discussing the airways beacons, the U.S. 
Government bought 59 Model "D" Kohler "light plants" for airways beacons in the Eastern 
U.S.

The Model "D" had a 4 cylinder OHV 8 HP engine which turned at 1000 RPM and the 
genset output 110 VDC, 1500 watts.

Woody told me that the gensets used in Montana beacons were 1500 watts, but I really 
doubt that the FAA was using the same Kohler gensets 30 years later. Fiurthermore, as I 
remember it, Woody told me that his gensets output 60 Hz AC since they also had to power 
some sorts of radio equipment at certain beacon sites.

Ken W7EKB

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