Thanks Mark,

I already have the standard English rate of climb indicator, the early one with the full numbers ie; 1.2.3.4. as used on things like Spifires, but as my post said I read in Owen Cathcart-Jones book that he fitted the Pioneer type and i just wondered how they compared. Seems that they made many different types so may never know, all I can say is that it was fitted in 1934.

Owen was the pilot in a record breaking flight to Capetown in a Lockheed Vega in 1931 which is probably where he used the Pioneer type and impressed with it enough to ask for it in the Comet.

Ken