Wright R-1820 "K-type cooling fins"

[Trilisser]

The description of the R-1820 in Jane's AWA 1953 volume says it has "K-type cooling fins" on the cylinder barrel. The 1946 Jane's mentions "W-type cooling fins". W-type finning was described in various wartime aviation/engineering journals (like Flight), but I have not found anything on "K-type finning". Anyone knows about it?

 

[Simon Thomas]

There is a paper on Jstor about the development of Wright cooling fins, however it does not mention K-type.

https://www.jstor.org/stable/44467834

Naming it K-type would be rather confusing, as that is a very common thermocouple name.

 

[Trilisser]

I rechecked the JAWA 1952-53 and indeed "K-type fins" are mentioned in the descriptiona of "R-1300 Cyclone 7" and "R-1820 Cyclones 9". It says the fins are inserted into grooves machined in barrel. Just like the W-fins.

 

[Jugman]

I would wager it's a typo. Unless I came up with something new at the very end of its life.

 

[Trilisser]

I would wager it's a typo. Unless I came up with something new at the very end of its life.

Anyone with other editions of JAWA to confirm/deny?

 

[MIflyer]

 

[SaparotRob]

That kid's touching the cauldron paddle!

 

[pbehn]

That kid's touching the cauldron paddle!

He is holding the bat at the wrong end, obviously knows nowt about cricket, a complete heathen

 

[SaparotRob]

We would just catch crickets with our hands.