Verified Defense Pro
There is / was a Tempest restoration project in Canada and they have a Napier Sabre engine. I know one of the Kiwis working on it. He's been converting all their drawings into AutoCAD plus doing new drawings as and when required. They went down to visit Kermit at FOF in Florida and FWI they did various measurements, photos etc., off his Napier Sabre engine. I'll drop him a message during the week to see where they're at.