Hi fellas and greetings from S.W.France.

Is there anyone who has experience with a K & B 40 please ?
I've recently acquired one in great condition , converted to C/L .

It's VERY noisy !

Any suggestions to make it more 'stunt' friendly guys ? I've tried all I know without success ..... !!

Much obliged for any contributions ,

Kind regards ,

Robin [ ex-pat Brit in the Charente full of ex-pat Brits ! ]

Robin, i have one of those engines in my box for future use. I have only test run it once a long time back, so i cant comment on how well it runs. I do remember reading that there are some people who use them for stunt so i'm sure its doable.

I also have one that runs very well. I bought it so I could turn the cylinder 180 degrees to get the exhaust on the outside of the circle. I took the big head gasket out and put in a thinner one and also made the venturi ~ .270" by putting a piece of 5/16 brass tube in it. Good engines.
Don

There pics on Mecoa site of which is which. 3 models .

Some have beefyer guts than the series 71 Ive got in a

57 Oz ship. 11 x 5 prop .P-head blew 8 plugs.

P is apparently the FAI no nitro pylon race head.

So a late ABC should easily exceed 160 mph ,

As its a much touger development of a series.

Just glared at one on ebay. 8011 is basically series 71 with muffler lugs .
other two current series have SRII schneurle? based front end, rod, etc.

61 ,- 64,- 67,- 70,- and 71 TORPEDO .

THAT WOULD. also suitable for STUNT.

(Just dont get a lean run , after dusk, with a dark red aeroplane . . . )