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Checking on a potential 'Mitty'

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Checking on a potential 'Mitty'

Old 12th Sep 2016, 15:57
  #101 (permalink)  
 
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You went into the computer business in 1965? Please tell me you bought shares in IBM!
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Old 12th Sep 2016, 16:25
  #102 (permalink)  
 
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J - no problem
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Old 12th Sep 2016, 16:53
  #103 (permalink)  
 
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Also 1976 (June) S8127661
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Old 12th Sep 2016, 17:01
  #104 (permalink)  
 
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The format was CNNNNNX where N is a digit and X is a checksum letter. - AA

In which case, I suspect that one of your Ns is missing......

Jacl
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Old 12th Sep 2016, 17:26
  #105 (permalink)  
 
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My number was W1941305 (Total 23)


Using Tinribs system, Post 91, it is correct. (A=1 etc) so (W=23)


Using Ricardian´s algorithm and discarding O and I the number calculated is 17 which corresponds to T




Help!!!
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Old 12th Sep 2016, 17:40
  #106 (permalink)  
 
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1 X 8 = 8
9 X 17 = 153
5 X 4 = 20
0 X 16 = 0
3 X 2 = 6
8 X 13 = 104
5 x 5 = 25
Total = 316(A) / 23 = 13(.73913) x 23 = 299(B)
(A)316 – (B)299 = 16 = Letter S

My letter is W! Where have I gone wrong?

Aaron.
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Old 12th Sep 2016, 20:57
  #107 (permalink)  
 
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You went into the computer business in 1965? Please tell me you bought shares in IBM!
Unfortunately not. In those pre-Thatcher days of exchange controls, one had to pay a premium for 'investment dollars'. The buyer was taking a bigger risk on the exchange fluctuations that the underlying investment.
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Old 12th Sep 2016, 22:15
  #108 (permalink)  
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TTN, last weekend in September to get a slightly better weather, doesn't always work. Organised by the Guernsey Association RN and RM, used to include RM band until MOD withdrew its support after the 70th, a C d'Honour at Government House, RNLI to a ceremonial wreath laying, a church service and a March to the cemetery with Salvation Army, St John's Ambulance, Police etc. The RN still tries to send a Guardship even though MOD does not support it.
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Old 13th Sep 2016, 17:23
  #109 (permalink)  
 
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ricardian's algorithm certainly wasn't the one used in the 1990s. With that algorithm, the letter will advance by 5 every time the number goes up by one, and by 14 every time the tens digit ticks over (e.g. xxxxx59 to xxxxx60). But in numbers from my era, the letter advances by 1 per number, or 4 when the tens digit ticks over.


2....58J
2....59K
2....60P
2....61Q


etc.
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Old 13th Sep 2016, 17:32
  #110 (permalink)  
 
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Originally Posted by AARON O'DICKYDIDO View Post
1 X 8 = 8
9 X 17 = 153
5 X 4 = 20
0 X 16 = 0
3 X 2 = 6
8 X 13 = 104
5 x 5 = 25
Total = 316(A) / 23 = 13(.73913) x 23 = 299(B)
(A)316 – (B)299 = 16 = Letter S

My letter is W! Where have I gone wrong?

Aaron.
Aaron O D,
Hereford 1964 ? Mine was1950351with an A added a couple of months later. Using your calculation mine still comes out as A.
Regards
Pete Ross, Supp. Gen
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Old 13th Sep 2016, 21:03
  #111 (permalink)  
 
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Originally Posted by Cows getting bigger View Post

Here's an interesting one - ex RAF senior officer who is now an RAFVR(T) fg off. What rank should he hold, and when.
A former Commandant Air Cadets returned to 5AEF as Adj after his flying career ended. While on duty he was referred to as Flt Lt Ford. At ceremonial/formal occasions he was addressed as Air Commodore Ford, which he still is as Hon Wing President of Norfolk and Suffolk Wing ATC. I believe at one time ACM Sir Patrick Hine became Fg Off Hine RAFVR(T) while he was an AEF pilot....
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Old 13th Sep 2016, 21:14
  #112 (permalink)  
 
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Saluted Paddy Hine coming out of the Mess at Coltishall by mistake. He was wearing Fg Off rank tabs and I was a Flt Lt at the time.
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Old 13th Sep 2016, 23:07
  #113 (permalink)  
 
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Saluted Paddy Hine coming out of the Mess at Coltishall by mistake.

Don't leave us in suspense, Megaton - what was his mistake?

Jack

PS I bet he was wearing or carrying his Air Officer's hat
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Old 14th Sep 2016, 01:00
  #114 (permalink)  
 
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A slight change to the algorithm fixes it. Multiply the last digit by 1 (not 5), discard "I" and "O" in the alphabet and start at zero when counting through.

This works for all examples in the thread.

Service Number
1941305

1x8=8
9x17=153
4x4=16
1x16=16
3x2=6
0x13=0
5x1=5

A= 204
B= 184
A-B= 20

ABCDEFGHJKLMNPQRSTUVWXYZ (Starting with A=0)

Checkdigit W
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Old 14th Sep 2016, 07:36
  #115 (permalink)  
 
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Yes, works for mine and others. Although in maths terms, the last few sentences can simply be replaced with "A modulo 23".
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Old 14th Sep 2016, 08:09
  #116 (permalink)  
 
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KISS
The Army just add 1 to the previous number.
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Old 14th Sep 2016, 15:17
  #117 (permalink)  
 
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Originally Posted by AARON O'DICKYDIDO View Post
1 X 8 = 8
9 X 17 = 153
5 X 4 = 20
0 X 16 = 0
3 X 2 = 6
8 X 13 = 104
5 x 5 = 25
Total = 316(A) / 23 = 13(.73913) x 23 = 299(B)
(A)316 – (B)299 = 16 = Letter S

My letter is W! Where have I gone wrong?

Aaron.
For starters 316 - 299 isn't 16
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Old 14th Sep 2016, 19:24
  #118 (permalink)  
 
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This esoteric arithmetic....

.....is all very well but has there been an outcome from the original poster? Was the chap a wrong 'un or not? I feel we should be told.

The Ancient Mariner
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Old 15th Sep 2016, 09:44
  #119 (permalink)  
 
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Sorry, too interested in all the codebreaking. I've just realised that as well as I and O, Z is also omitted (hence the use of modulo 23), so A follows Y, unless Y was suffixing a number ending in 9, in which case the next letter is D.

Last edited by Underbolt; 15th Sep 2016 at 16:54.
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Old 15th Sep 2016, 09:46
  #120 (permalink)  
 
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he's probably passed away by now....
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