Title: Re: What plane did this clock come out of?
Post by: Chalenge on July 17, 2016, 05:56:21 AM
1950s RAF, so just about any from that era.
Title: Re: What plane did this clock come out of?
Post by: FLOOB on July 17, 2016, 09:15:28 AM
How do you know it's a 50s era? It's essentially an Eglin 8 day with a different face, same lecoultre movement.
Title: Re: What plane did this clock come out of?
Post by: Puma44 on July 17, 2016, 09:20:34 AM
USAF T-37s also had them installed. UPT instructors frequently told student pilots when flying solo and an emergency occurred, to maintain aircraft control first and "wind the 8 day clock until it won't wind anymore" before doing anything else.
Title: Re: What plane did this clock come out of?
Post by: FLOOB on July 17, 2016, 09:42:31 AM
USAF T-37s had Air Ministry RAF clocks?
Title: Re: What plane did this clock come out of?
Post by: FLS on July 17, 2016, 12:05:29 PM
... It's essentially an Eglin 8 day with a different face, same lecoultre movement.
Title: Re: What plane did this clock come out of?
Post by: FLOOB on July 17, 2016, 12:16:12 PM
lecoultre is american. But it's a RAF mk4 clock. The movement is 1941, last time it was serviced was 1956, it has Air Ministry mark and ref # 6H/2149. I realize can't know what exact type of plane it came out of, but I would like to know when they started using the mk iv clock.
Title: Re: What plane did this clock come out of?
Post by: Puma44 on July 17, 2016, 11:18:42 PM
lecoultre is american. But it's a RAF mk4 clock. The movement is 1941, last time it was serviced was 1956, it has Air Ministry mark and ref # 6H/2149. I realize can't know what exact type of plane it came out of, but I would like to know when they started using the mk iv clock.
:airplane: This is the same clock used in the Ryan PT-22, (At least I know where there is a FLYING PT22 which has this clock in it!
Title: Re: What plane did this clock come out of?
Post by: FLOOB on July 22, 2016, 09:09:07 AM
:airplane: Next time I am over there where the 22 is, I will get a pic and post it!
Title: Re: What plane did this clock come out of?
Post by: FLOOB on July 24, 2016, 11:11:06 AM
Awesome! :aok
Title: Re: What plane did this clock come out of?
Post by: Wolfala on July 29, 2016, 11:33:13 AM
Be extremely careful with these. Most of that vintage had radium paint on the movements.
Title: Re: What plane did this clock come out of?
Post by: DaveBB on July 29, 2016, 03:42:07 PM
I've used a lot of radiation survey meters, but never that exact model. *IF* he was reading the meter right, 80mr/hr is actually dangerous. While performing industrial gamma radiography, we set the boundaries at 2 mr/hr. Industrial radiographers aren't supposed to get more than 5000 millirem/year, it would be quite easy to surpass even that high limit if that instrument is truly as radioactive as he said.
Title: Re: What plane did this clock come out of?
Post by: Wolfala on July 29, 2016, 04:37:14 PM
Was 8000 counts per minute which is about 8 mrem per hr. As an alpha, it's dangerous if ingested.
Title: Re: What plane did this clock come out of?
Post by: FLOOB on July 31, 2016, 09:50:07 AM
Ever watch The Poisoners Handbook? Interesting segment about radium.
Title: Re: What plane did this clock come out of?
Post by: Ramesis on July 31, 2016, 04:18:38 PM
Jeez... sure looks like the Crusader clock ! I was an AE back in the early '70s and for 2 yrs worked on the F8k. Again, sure looks familiar :old: Ram