[Milsurplus] Help With Dynamotor ID

[J. Forster]

WA5CAB at cs.com wrote:

> Mean anything to anyone?  It was found in Russia, supposedly at a Neptune
> crash site, but the 18 volt input makes me doubt that.  I never heard of an
> aircraft with an 18 VDC electrical system.  Ring any bells?

The UK R.1155 / T.1154 used a roughly 9 V and roughly 18 V dyno  (for 12 and 24
V systems) with a dropping resistor. It was done so there would always be enough
voltage to run the dynos on their rated voltage.  The voltage was controlled by
a 'Londex' relay as I remember,

FWIW,
-John