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Vickers type designations

Stargazer2006

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I have found that the DC-3 used a toilet designated "Vickers Type 101"... Now somebody tell me that this had nothing to do with our missing Type 101... :-\
 

Maveric

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Vickers Type 14 Hydravion (land/seaplane) from 1912
Vickers Type 26 "Pumpkin" (No.26) Biplane from 1913
Vickers Type 19 to Type 21 = Vickers "Boxkite" from 1912
Vickers Type 18A (EFB.2)
Vickers Type 18B (EFB.3 )
 

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Vickers Type 22 (No.22) Blériot-type monoplane (project) see Replica
Vickers Type 43 (float seaplane) project from 1914
Vickers G.F.B.1 / G.F.B.2 / G.F.B.3 (german fighting biplane) projects from 1914

(Source: British Aircraft Before the Great War)
 

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Stargazer2006

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Cool additions! Someday we'll solve the puzzle and get this list completed I'm sure!
 

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hi all,

from "British Secret Projects. Fighters & Bombers. 1935-50":

425 - Special bomber with six Merlin HA engines
444 - Warwick development
475 - Wellington engine test bed
481 - Wellington variant
492 - Mosquito 'Highball' aircraft; special variant
 

Stargazer2006

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hesham, although I appreciate some of your finds, you do not take enough precautions in your words.

Instead of saying: "Model *** was this or that" you should write "According to the site..." and not make it sound like an absolute truth.

Jemiba and myself are constantly remind you that most sources are liable to mistakes, and despite the quality of this database it is not exempt of mistakes...

hesham said:
698 was Viking aircraft,but what variant and may be it was a project.
NO. The numbers 675 to 699 were never allocated.
Possibly a typo for 628 (Viking 1B for DDL).

hesham said:
935 Merchantman was converted from Vanguard,absolutely a project.
NO. The numbers 902-949 were never allocated.
The Merchantman was the Model 953, not 935. Typical example of a typo.
 

Arjen

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Stargazer2006 said:
Allow me to share with you a list of the designations (either Supermarine of Vickers) that are still missing. Whenever you find the time it would be cool to look them up for us...
VICKERS
  • 197
  • 201, 211, 243, 247, 254, 265, 275
  • 404, 425, 444, 475
  • 612, 617, 622, 625, 642, 646, 655
  • 713, 714, 717, 721, 726, 728, 729, 731, 738, 740, 741, 746, 750, 751, 752, 753,
    762, 766, 767, 774, 775, 777, 778, 783, 787, 788, 791, 792, 795, 796
  • 809, 811, 817, 819, 820, 822, 824, 826, 829, 830, 834, 841, 842
From 'Vickers Aircraft since 1908' by CF Andrews and EB Morgan, Putnam 1995
- 197: Crayford miscellaneous drawings
- 201: not listed
- 211: not listed
- 243: not listed
- 247: not listed
- 254: not listed
- 265: not listed
- 275: not listed
- 404: not listed
- 425: Special bomber, 2 engines, project
- 444: Warwick, 2 x Double Wasp, Heavy bomber
- 475: Wellington Special, 1 x "Squelcher"(?), Engine test-bed
- 612: T.1/48, 2 x Hercules, Postwar trainer
- 617: Viking I, 2 x Hercules 630, Brazil
- 622: Viking C.2, 2 x Hercules 130, Transport Command
- 625: Viking C.2, 2 x Hercules 630, VIP (Staff)
- 642: Viking, 2 x Hercules 630, VIP (general)
- 646: Viking, 2 x Hercules 630, RAAF
- 655: S.P.2, 3 x R-R RB93, Short-range expendable pilotless bomber
- 713: B.T.V. - Guided Weapon
- 714: B.T.V. - Guided Weapon
- 717: W.T.V. - Guided Weapon
- 721: Viscount, 4 x Dart RDa3/506, ANA - not built
- 726: EE Canberra, 2 x Avon RA28, conversion for W.T.V.
- 728: Viscount, 4 x Dart RDa3/506, Cyprus AirWays, Aden Airways - not built
- 729: Valetta, 2 x Hercules 230, GEC special project
- 731: Viscount, 4 x Dart RDa3/506, KLM - not built
- 738: Viscount, 4 x Dart RDa3/506, Special duty
- 740: Viscount, 4 x Dart RDa3/506, Staff
- 741: Viscount, 4 x Dart RDa3/506, VVIP
- 746: not listed
- 750: Guided weapon
- 751: Guided weapon
- 752: Guided weapon
- 753: Guided weapon
- 762: Viscount, 4 x Dart RDa6/510, Basic executive
- 766: Viscount, 4 x Dart RDa6/510, Fred Olsen
- 767: Viscount, 4 x Dart RDa6/510, Aden Airways (BOAC)
- 774: Viscount, 4 x Dart RDa6/510, Saudi Arabia
- 775: Viscount, 4 x Dart RDa6/510, Yugoslavia
- 777: Viscount, 4 x Dart RDa6/510, Basic schedules
- 778: Viscount, 4 x Dart RDa6/510, Chile
- 783: Viscount, 4 x Dart RDa6/510, LAV
- 787: Viscount, 4 x Dart RDa6/510, Iraqi Airways
- 788: Viscount, 4 x Dart RDa6/510, Syrian Airways
- 791: Viscount, 4 x Dart RDa3/506, AVIANCA
- 792: Viscount, 4 x Dart RDa3/506, Pakistan (VIP)
- 795: Viscount, 4 x Dart RDa6/510, TWA
- 796: Viscount, 4 x Dart RDa6/510, Turkish Air Force (VIP)
- 809: Viscount, 4 x Dart RDa6/570, Greece
- 811: Viscount, 4 x Dart RDa7/525, Capital
- 817: Viscount, 4 x Dart RDa7/525, Avensa
- 819: Viscount, 4 x Dart RDa7/525, Aviacion
- 820: Viscount, 4 x Dart RDa7/525, American Airlines
- 822: Viscount, 4 x Dart RDa7/525, LAV
- 824: Viscount, 4 x Dart RDa7/525, LAI
- 826: Viscount, 4 x Dart RDa7/525, Aigle Azur
- 829: Viscount, 4 x Dart RDa7/525, TAP
- 830: Viscount, 4 x Dart RDa7/525, American Airlines large fuselage
- 834: Viscount, 4 x Dart RDa7/525, LOT
- 841: Viscount, 4 x Dart RDa11/541, BEA
- 842: Viscount, 4 x Dart RDa11/541, Iraqi Airways
 

Stargazer2006

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Absolutely splendid, Arjen! :)

After filling in my Vickers-Supermarine Excel chart, I came up with a few more questions — for which I'm sorry. :-[
Try to answer them when/if you have the time for that...

1°) Do you have the customers and/or details for these?
  • Viking: 645, 657
  • Viscount: 703
  • Valiant: 705, 709, 712, 718
2°) Missing numbers
  • Do you have the Types 650 and 801? I forgot them in my "missing" list...
  • Was there any allocation of numbers 844 to 849?
  • Do you have any allocations between 871 and 899 (besides 888, 889, 891 and 897)?
  • Was there any allocation of numbers in the 900-series further than 953?
3°) Conflicting designation
  • Type 899 appears variously as a high-wing car ferry to Spec. OR.323 and a high-speed high-altitude reconnaissance aircraft to Spec. R.156T. Which of these is correct? And what to do with the other one?
That will do for now... ;D ;)
 

Arjen

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Putnam-Vickers:
- 645: Valetta C.1, 2 x Hercules 230 - initial production [customer: RAF]
- 650: Viking, 2 x Hercules 630 - Suidair
- 657: Viking 1A, 2 x Hercules 634 - BSAA converted 498
- 703: Viscount, 4 x Dart RDa3/506 - 53-seat project
- 801: Viscount, 4 x Dart RDa6 - revised to Type 802
- 802: Viscount, 4 x Dart RDa7/520 - BEA
- 845: Viscount, engines unspecified - Pakistan International
- 877: Viscount 802, 4 x Dart RDa7 - basic schedule
- 892: To OR 1149
- 894: Vigilant 1
- 895: Guided Weapon
- 899: not listed
- 999: Variable geometry - Proving test rig
 

Schneiderman

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Some Vickers blueprints were recently offered on ebay. The images provided the following Type numbers and descriptions:

61 Vulcan (Rolls-Royce Eagle VIII) 1922
80 Single Seater Patrol Aeroplane (Wolseley Viper engine) 1923
110 Two Seater Army Co-operation Aircraft DofR 20/24 (Jupiter IV engine) 1925
Vendace General Purpose Landplane with Nimbus Engine 1927?
118 Valparaiso two seat (Jupiter engine) 1926
123 Single Seater Fighter (Hispano Suiza engines) 1926
153 General Purpose Bombing and Torpedo-Carrying Monoplane (AM spec G.4/31) 1931
Viastra Passenger Aircraft (2 x Jupiter XIF) 1930
168 Valparaiso single seat (Jupiter engine) 1929

As you can see the drawing dates do not always follow the Type number sequence and some Types include more than one aircraft design. Supermarine did much the same with Type 178 which includes preliminary designs for at least 12 different aircraft
 

Stargazer2006

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Schneiderman said:
Some Vickers blueprints were recently offered on ebay. The images provided the following Type numbers and descriptions:

61 Vulcan (Rolls-Royce Eagle VIII) 1922
80 Single Seater Patrol Aeroplane (Wolseley Viper engine) 1923
110 Two Seater Army Co-operation Aircraft DofR 20/24 (Jupiter IV engine) 1925
Vendace General Purpose Landplane with Nimbus Engine 1927?
118 Valparaiso two seat (Jupiter engine) 1926
123 Single Seater Fighter (Hispano Suiza engines) 1926
153 General Purpose Bombing and Torpedo-Carrying Monoplane (AM spec G.4/31) 1931
Viastra Passenger Aircraft (2 x Jupiter XIF) 1930
168 Valparaiso single seat (Jupiter engine) 1929
Amazing! Do you realize that this list contains no less than FOUR designations that were previously unaccounted for?
Types 80, 110, 118 and 153 were missing from the known lists... I hope you saved the pictures of these to your HD!!!


Schneiderman said:
As you can see the drawing dates do not always follow the Type number sequence and some Types include more than one aircraft design. Supermarine did much the same with Type 178 which includes preliminary designs for at least 12 different aircraft
Only normal since the Supermarine types were included in the Vickers-Supermarine sequence starting at Type 178.
 

hesham

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Great find Schneiderman,


and may be the Type 110 was intended for Spec. 3/25
 

Stargazer2006

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Managed to find the images for all these Vickers blueprints. There was actually one more, the Type 52.

The basic type is given by the first two or three figures of the blueprint's number, the last two digits indicating alterations to the original design (presumably 00 being the first draft of the type). However, two remarks need to be made here:
[list type=decimal]
[*]The type designations 110 and 153 are used twice. In the case of the former, the Vendace is an evolution of the earlier, unnamed design. In the case of the latter, though, the two aircraft are so different that it seems uncanny they could have been evolved one from the other.

[*]I do not quite agree that the numbers are not chronological. The dates for the original, unaltered designs were most probably sequential, but later on alterations were made to the basic designs and these of course cannot be sequential.
[/list]Here is the exact description of the types shown on the blueprints:
  • 5296 — 15/12/1920 — Vickers Military Two Seater — Napier Lion
  • 6100 — 17/01/1922 — Vickers Vulcan (Rolls Eagle VIII)
  • 8015 — 08/01/1923 — Vickers Single Seater Patrol Aeroplane (Wolseley Viper Engine)
  • 11001 — 06/02/1925 — Vickers Two Seater Army Co-Operation Aircraft — D of R 30/24 — Jupiter IV Motor
  • 11092 — 10/12/1927*— Vickers Vendace. General Purpose Landplane With Nimbus Engine — perhaps 10 December 1927 (*date uncertain, image blurry)
  • 11847 — 06/01/1926 — Vickers Valparaiso — Bristol Jupiter Engine
  • 12300 — 19/04/1926 — Vickers Single Seater Fighter (Hispano Suiza Engine)
  • 15364 — 16/04/1930 — Vickers "Viastra" Passenger Aircraft — Bristol Jupiter XI F Engines
  • 15396 — 20/10/1931 — Vickers General Purpose, Bombing & Torpedo-Carrying Monoplane — A.M. Spec. No. G. 4/31 — Rolls-Royce "Kestrel" III Engine
  • 16800 — 24/04/1929 — Vickers Valparaiso (Jupiter)
Thanks again Schneiderman for bringing these to our attention. It clearly shows that there were many iterations to a design, and can also explain the variations in the plans drawn by various authors depending on what alteration of the basic type they landed upon in their research. And what's worse, it is not known for each type what alteration exactly was the one that was eventually produced.
 

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As you say, the Vickers drawing number system is in four parts; the Type number, major structural group number, drawing (part) number, and modification letter. So, using a Supermarine example, 3810811G is the 7th revision of drawing 11 of group 08 (starboard wing) of Type 381 (Spitfire IX). General layout drawings generally fall under group 00, but with these Vickers drawing that is not always the case. None have modification numbers.
 

Stargazer2006

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I have just found a THIRD totally different design also allocated the Type 153 designation...

See here: http://www.secretprojects.co.uk/forum/index.php?topic=22995.0
 

Schneiderman

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Some more information on Type 453 (in the Putnam VC2 powered by two RR Darts)

I have located two tender documents dated May 1944, both for projects numbered as Type 453 (not scanned yet, I'll post 3-views later)

34 passenger, 2 x Bristol Centaurus, pressurised, 1000 mile range, that looks like a scaled-up Viking
40 passenger, 4 x RR Griffon, pressurised, 2200 mile range, that looks like an early Viscount with increased span

The Putnam volume says that in mid 1945 Type 453 also included three 4 x propeller-turbine designs

24 passenger, pressurised, 1000 mile range
24 passenger, unpressurised, 1000 mile range
27 passenger, unpressurised, 1000 mile range

and then the VC2

24 passenger, 4 x RR Dart prop-turbines, pressurised 'double-bubble' fuselage, 1040 mile range,

So, once again, we have a Vickers Type that includes a number of quite different designs.
 

Stargazer2006

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Schneiderman said:
So, once again, we have a Vickers Type that includes a number of quite different designs.
Indeed. But then at least all these projects had something in common, they were all for a new passenger transport. This wasn't always the case for the other multiple-project designations we found previously!

Thanks for sharing.
 

Schneiderman

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Vickers Type 453 44 Four Engined Empire Passenger Transport

4 x Rolls Royce Griffon 14SM
40 day passengers or 20 sleeping berths
Pressurised
Span 122' 7"
Length 88' 7"
Weight loaded 72000 lbs
Speed Max cruising 267mph
Speed mean cruising @10,000ft 248mph
Range 2200 miles

The wing style and size, and the four-unit main undercarriage suggests that the wing is based on that of the Vickers Windsor
 

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Schneiderman

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Vickers Type 453 45 Large Twin Engined Civil Transport

2 x Bristol Centaurus VII
34 passengers
Pressurised
Span 102' 0"
Length 69' 6"
Weight loaded 45000 lbs
Speed Max cruising @10,000ft 225mph
Range 1000 miles
 

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hesham

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Excellent work my dear Schneiderman.
 

Schneiderman

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The Vickers Vigilant 8-engined flying boat, cancelled in 1921/22 was probably designated as Type 50.
In Gunston's book of Giant Aircraft one illustration is based on Vickers' drawing number 5089
The model tested in the NPL water tank, reported in R&M 785, was designated Model 506
So based on what we know about later Vickers project & drawing numbering systems that convinces me that this aircraft was Type 50
 

Stargazer2006

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Schneiderman said:
The Vickers Vigilant 8-engined flying boat, cancelled in 1921/22 was probably designated as Type 50.
In Gunston's book of Giant Aircraft one illustration is based on Vickers' drawing number 5089
The model tested in the NPL water tank, reported in R&M 785, was designated Model 506
So based on what we know about later Vickers project & drawing numbering systems that convinces me that this aircraft was Type 50
Great info. I agree with you on this.

I realize there is another problem with the Vickers system though: if Type 43 was a 1914 seaplane project, how can we have only seven slots to the Vigilant?
From 1914 to 1920 (when the Vigilant was designed), we have most of the E.F.B./F.B. series (27 numbers plus sub-variants), the F.T. series (1 to 3), the E.S.1 (Mks. I and II), Viator, Vimy Ambulance, Vernon, Viking I to III, Valentia, PVO-9, D. of R. Type 4, R23 airship and V.I.M... which begs the question: How many numbering systems before this Type 50? Was this the arbitrary start number for a new sequence? Or the continuation of one of the old ones?
 

Schneiderman

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Or indeed 11 slots to the Type 54 Viking IV.
I have not looked into the pre-54 numbers that came from British Aircraft Before the Great War but I wonder whether they are reliable? We know that there were a variety of aircraft designations from 1911 through to 1918, F.B, M, E.S and so on, but whether these were the equivalent of Type numbers appears to be unknown.
As a working hypothesis I wonder whether Vickers only started the Type system post-war to rationalise the business and then chose to commence with 50. After all Type 1 would sound odd for a company that had been in business for eight years and 50 is a nice round number. One possible sequence would then be Vigilant - 50, Vikings I - III as 51 - 53.
 

Stargazer2006

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Type numbers I have in my list (built over the years from various sources):

1 Vickers-REP
2 Vickers-REP
3 Monoplane
4 Monoplane
5 Monoplane
6 Sociable
7 Monoplane
8 Monoplane
14 Hydravion
18 E.F.B.2
18B E.F.B.3
19 Boxkite
20 Boxkite
21 Boxkite
22 Improved Blériot (single-seat mid-wing monoplane; not built, but a genuine Blériot monoplane was purchased prior to that)
26 Pumpkin (1913 biplane)
30 E.F.B.3 (modified 18B)
43 float seaplane project (1914)
50 Vigilant (as per your previous post)
52 Military Two Seater (Napier Lion) (discussed recently after plans surfaced on eBay)

I believe our best bet to determine whether there was a new numbering starting at 50, or simply a continuation of the old system, is just to dig out some early company plans in various archives and collect their numbers. I'm sure some museums possess some Vimy, Vernon or Viking plans... Then perhaps a sequence will emerge.
 

Schneiderman

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I agree, if we cannot find Type numbers for the Gunbus or Vimy drawings then we are a bit lost.
 

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A quick check of the RAF Museum catalogue does not help. The Vimy MkII/FB27a has one drawing listed as 3287S, some commencing 32, 33 and 92, and then a large number commencing with letters, A through to W.
 

Stargazer2006

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Schneiderman said:
A quick check of the RAF Museum catalogue does not help. The Vimy MkII/FB27a has one drawing listed as 3287S, some commencing 32, 33 and 92, and then a large number commencing with letters, A through to W.
Are we talking of blueprints only, here? Perhaps it helps more than you think. You'd have to properly search the documents to be sure:

1°) I think the "32.." and "33.." numbers are a track worth investigating, especially if my "Type 43" reference is ill-dated as I suspect. Perhaps these two separate numbers could relate to the F.B.27 prototoypes and F.B.27A production versions, respectively? (just a working hypothesis) I'm still at a loss about the "92.." numbers though, BUT let's not forget we have recently established that some Type numbers covered a wide array of different designs, and so even if the Type 92 is officially the Valparaiso II, some Vimy drawings or proposals might have been given the same basic type number; again, just a hypothesis here.

2°) It is possible that the ones beginning with letters were R.A.F., not Vickers, plans or documents. Alternately, the numbers that follow the prefix letters may show some sort of logic.
 

Schneiderman

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Yes they are blueprint numbers.
The museum catalogue is reasonably accurate although I have to say that I have located quite a number of errors in the Supermarine listings, mainly identification of the aircraft type. So there may be more than on aircraft type covered by these drawings.
Its possible that the lettered drawings were simplified material for the manual, I have seen similar things for Supermarine aircraft.
Bottom line: I will be back at the museum in a couple of weeks and will have a look
 

Stargazer2006

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Schneiderman said:
Bottom line: I will be back at the museum in a couple of weeks and will have a look
That's great news. Can't wait to read about your findings! ;-)
 

Schneiderman

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OK, not much clarity I'm afraid

Vimy drawings commencing with a letter date from the 1960s, drawn by BAC Hurn. There are no references on them to earlier drawings so I wonder if these were 'reverse engineered' from the Vimy in the Science Museum in order to build the replica.

Drawings of the Vimy FB27a dated between 1918 and 1925 have four-figure drawing numbers commencing with 32, 33 and 34.
33xx seem to be the earliest and 32xx the latest, but that may just be a sampling issue, I did not look at many.

The title box and position of the drawing number are not like those with which I am familiar (late 20s/early 30s) so I cannot say if 32-34 are Type numbers, but I do doubt it.
 

Stargazer2006

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Schneiderman said:
OK, not much clarity I'm afraid

Vimy drawings commencing with a letter date from the 1960s, drawn by BAC Hurn. There are no references on them to earlier drawings so I wonder if these were 'reverse engineered' from the Vimy in the Science Museum in order to build the replica.

Drawings of the Vimy FB27a dated between 1918 and 1925 have four-figure drawing numbers commencing with 32, 33 and 34.
33xx seem to be the earliest and 32xx the latest, but that may just be a sampling issue, I did not look at many.

The title box and position of the drawing number are not like those with which I am familiar (late 20s/early 30s) so I cannot say if 32-34 are Type numbers, but I do doubt it.
Thanks a lot for your pains! I guess we're on the safer side to assume that whatever numbers were allocated in the early stages of the company, a new system started at number #50...
 

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It's still a good working theory, but I'm not yet sure. After all I've only looked at a small sample of drawings for one Vickers aircraft, we really need to try and locate others, preferably for earlier aircraft.
 

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One more to add to the list. Type 51 was a project for a flying boat based on Vimy flight surfaces and a hull similar to a scaled-up Viking. Drawing No. 5156 dated 30th April 1920
 

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Richard Payne, in Stuck on the Drawing Board, says that Vickers developed a number of Mach 1.8 SST designs under Type 586 and 587 (which were actually in the range of project Type numbers originally assigned to the Supermarine team at Hursley Park). This may be one of them.
 

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I don't want to open a new special topic referring to the Wellesley and Wellington variants, but I'd like You all to create the most worthy of belief lists
of both types ; here are my proposals and I'm expecting Your corrections and supplements :

Vickers WELLESLEY

Type 253 - single-engined two-seat biplane general-purpose aircraft built to the G. 4/31 specification ;
Type 246 - single-engined two-seat monoplane general-purpose aircraft designated O-9, originally with fixed gear ;
Type 281 - improved type 246 with retractable gear ( the first named Wellesley ) ;
Type 287 - initial production model with separated cockpits ( Wellesley Mk I ;
Type 289 - engine testbed used to test the Bristol HE15 Hercules radial piston engine ;
Type 291 - specialized blind-flying aircraft ;
Type 292 - long-range modification aircraft for record-setting in the Ismila, Egypt - Darwin, Australia raid ;
Type 294 - prototype with reinforced wing elements ;
Type 402 - three-seater experimental model ( sometimes called Wellesley Mk II.

Vickers WELLINGTON

Type 271 - originally called Crecy, 1936, 09.08 renamed Wellington ;
Type 285 - pre-production Wellington Mk I prototype ;
Type 290 - the first Wellington Mk I production version ;
Type 295 - specialized radio-navigation training aircraft ;
Type 296 - specialized transport aircraft for airborne forces ;
Type 298 - Wellington Mk II prototype ;
Type 299 - Wellington Mk III prototype ;
Type 406 - Wellington Mk II ;
Type 407 - Wellington Mk V prototype ;
Type 408 - Wellington Mk I A ;
Type 409 - Wellington Mk I B ;
Type 410 - Wellington Mk IV prototype ;
Type 416 - Wellington Mk I C ;
Type 417 - Wellington Mk III ;
Type 418 - Wellington Mk DWI I ;
Type 419 - Wellington Mk DWI II ;
Type 421 - Wellington Mk V prototype ;
Type 423 - Wellington Mk X torpedo-bomber version ;
Type 424 - Wellington Mk IV ;
Type 426 - Wellington Mk III mine-sweeping version ;
Type 429 - Wellington Mk GR VIII ;
Type 431 - Wellington Mk VI pressurised Mk V development ;
Type 435 - Wellington Mk I C conversion for turbinlite test;
Type 437 - Wellington Mk IX Mk I C conversion for troop transport ;
Type 439 - Wellington Mk II converted with the installation of a 40 mm Vickers S gun in the nose ;
Type 440 - Wellington Mk X ;
Type 442 - Wellington Mk VI pressurised Mk V development ;
Type 443 - Wellington Mk V used to test the Bristol Hercules Mk VIII and Rolls-Royce Merlin Mk 60 engines ;
Type 445 - Wellington Mk I used to test the Whittle W2B/23 turbojet engine ;
Type 448 - Wellington Mk X ;
Type 449 - Wellington Mk VI G pressurised Mk V development ;
Type 454 - Wellington Mk IX prototype with ASV Mk II radar ;
Type 455 - Wellington Mk GR XII ;
Type 458 - Wellington Mk GR XI ;
Type 459 - Wellington Mk IX prototype with ASV Mk III radar ;
Type 466 - Wellington Mk GR XIII ;
Type 467 - Wellington Mk GR XVI ;
Type 470 - Wellington Mk II fitted with the Whittle W2B jet engine ;
Type 478 - Wellington Mk X used to test the Bristol Hercules Mk 100 engine ;
Type 486 - Wellington Mk II fited with W2/700 jet engine ;
Type 487 - Wellington T Mk XVII ;
Type 490 - Wellington T Mk XVIII ;
Type 602 - Wellington Mk X fitted with two Rolls-Royce Dart turboprop engines ;
Type 619 - Wellington T Mk X post-war conversion of Mk X for training role.
 

Schneiderman

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Looking at Paul Wyand’s Type list in the Putnam volume and the additional projects found from the ebay listings over a year ago we are now left with the following ‘unknown’ Types for the 1920s
53
65
90
101
109
126
136
152
154
In Morgan and Meerkom’s book of Air Ministry specifications there is this sketch drawing of a Vickers project to spec. 9/23 which would therefore date to late 1923. That makes it a possible contender to be Type 90. It is an odd design, parts are typical Vickers while others are unusual. It would be useful to see the original company drawings so before I start hunting has anyone more information.
 

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