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| Unusual numbering on Pluton dial face https://www.breitlingsource.com/phpBB2/viewtopic.php?f=12&t=67235 |
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| Author: | Rodeor [ Sun May 31, 2020 7:10 am ] |
| Post subject: | Unusual numbering on Pluton dial face |
I'd like to know the significance of the numbers: 35, 50, 75, 90, E, 115, 130, 155, 190, S, 40, 45, 80, 85, W, 120, 125, 160, 165, N Alternating in white & gold around the outer edge of the dial face on my Pluton A51038, purchased new in 1993. A tough old workhorse still running well with new battery. |
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| Author: | jerhal [ Sun May 31, 2020 1:57 pm ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
Compass headings |
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| Author: | Rodeor [ Sun May 31, 2020 6:11 pm ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
No, not compass bearings. No relation to position the 360 degrees on a compass. 75 where 45 should be? |
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| Author: | jerhal [ Mon Jun 01, 2020 1:01 pm ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
Rotate the Bezel so the N is at 12 o'clock. They're compass bearings. |
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| Author: | Nihon_Ni [ Mon Jun 01, 2020 5:00 pm ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
I've always wondered what these marking are. As a retired professional navigator, I can say with certainty that they aren't compass bearings. N, 35, 50, 75, 90, E, 115, 130, 155, 190, S, 40, 45, 80, 85, W, 120, 125, 160, 165, N If they are compass bearings, then here's the problem. All these marks are equidistant, so the measurement between them must be constant if this is a directional tool. Starting at North and going clockwise, there's 35 degrees between the first pair (N-35), but only 15 between the next pair (35-50), then 25 degrees, then 15, then 0 (90-E), then 25, then 15, then 25 then 35 then -10 (between 190 and South, which is 180 degrees from North). And between South and North clockwise it's a completely different pattern: 40, 5, 35, 5, 5, 30, 5, 35, 5, 15. So if it's not a compass, what is it? |
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| Author: | Rodeor [ Mon Jun 01, 2020 5:20 pm ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
Exactly! Thank you for confirming such a clear way. |
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| Author: | jerhal [ Tue Jun 02, 2020 2:03 am ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
I can't read the bezel in your picture die to the angle. I googled Pluton A51038 and this is what I got for every image that came up. It has compass headings.  BTW I was a professional aerial navigator too. 20 years as a USN P-3 NFO. Edit: Now I see what you are talking about. Not on the bezel. |
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| Author: | Nihon_Ni [ Tue Jun 02, 2020 4:05 am ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
jerhal wrote: I can't read the bezel in your picture die to the angle. I googled Pluton A51038 and this is what I got for every image that came up. It has compass headings. BTW I was a professional aerial navigator too. 20 years as a USN P-3 NFO. Edit: Now I see what you are talking about. Not on the bezel. Ha! I was a USMC Prowler NFO for 20+ yrs! You're right, the bezel is compass bearings, but the OP is asking about the markings on the outside rim of the dial. |
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| Author: | Rodeor [ Tue Jun 02, 2020 8:33 am ] |
| Post subject: | Re: Unusual numbering on Pluton dial face |
Thanks guys! No bickering now! Although appreciating, I was not expecting, such highly qualified responders to my query!! No personal military experience here, but a proud son of a vet and brother to a retired Canadian Hornet driver. Of course I will appreciate learning the answer to my numbers question and expect you will as well. Let's keep our "ears" on for any news. Thanks again. Richard ps: Sorry about the poor photography. |
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