[T2] booster engine

[Robert Mann]

I'm exploiting fully the fact it's Friday amongst most Listees O:-) 
(here, it's Sat)

>
>>Quiz Q: why do radial engines have odd numbers of cylinders (per bank)?

...

>The prototype radial Zoche aero-diesels (below) have an even number 
>of cylinders, either four or eight; but this is not problematic, 
>because they are two-stroke engines, with twice the number of power 
>strokes as a four-stroke engine.

	Very good Jamie; I was wondering if anyone would know that.
	www.zoche.de has been looking v convincing for a decade now. 
I've urged their small engine on some builders of W1 'replicas'.  Are 
they still only prototypes?
	BTW the Q must be correctly worded, on account the most 
impressive radials had 2 rows of cylinders which must total an even 
number.

R