Re: Proving Grounds Test Certificate

Posted by Owen_Dyneto On 2014/1/9 9:45:14

I thought the proving ground break in ended with the 1934 Twelves, and starting in 1935 they just ran the engines on a dynometer for several hours.

1508: Based on this certificate, that evidently was not the case. Typically in this era the senior 7-pass sedan was about 8% at best of total production (perhaps a bit higher for the Twelves) so, unless the production of these were campaigned early in the year (pretty unlikely?), this would be a very late car, probably one of the very last 834s. So it's a reasonable assumption that the 250 mile test drive at least continued thru the end of the 12th series Twelve run.

JW: I'm glad the certificate has proven interesting. I've responded to Roger's email about a possible PPG project. I'm all in favor of projects that can raise money for the PPG. However, the image I posted is a good quality reproduction made for me by the owner of the original. Whether he would make his (or high quality scans of it) available for a project is a question only he an answer, and also I'd not be comfortable offering the copy he made for me without his permission. I'll pursue the topic with him next time we speak.