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1
Hi,

we forget to talk about RAF D. of R (Directorate of Research) specifications,and they were
a 12 issues;

D of R.1     ------?
D of R.2     ------?
D of R.3     recce aircraft; DH-30,DH-31 & DH-41 and Avro-?
D of R.3A   recce aircraft; DH-35 and Avro-?
D of R.4     long-range twin engined bomber; HP-24 Hyderabad and Vickers Virginia
D of R.4B   long-range single engined bomber; Avro-549 Aldershot,DH-?,HP Type-X
D of R.5     ------?
D of R.6     single seat shipboard fighter; DH-33,Avro-?,Fairey ?
D of R.7     deck-land recce aircraft; Blackburn R.1 Blackburn
D of R.8     deck-land torpedo carrier; Blackburn T.2 Dart and HP-19
D of R.9     coastal defence torpedo bomber; DH-36Blackburn T.4 Cubaroo,Avro-556 &
                 Avro-557
D of R.10   ------?
D of R.11   ------?
D of R.12   troop carrier; DH-28 and Vickers Victoria

It's misery and disappoint that we in 21 century and those Specifications are still missing ?.
2
Hi,

this?

Specification   Requirement   Subject   Contractor    Aircraft   Remarks
Type I      Fighter, ABC Dragonfly engine   Armstrong Whitworth   Ara   
         BAT   Basilisk   
         Nieuport   Nighthawk   
         Siddeley   S.R.2 Siskin   
         Sopwith   Snapper   
         Sopwith   Snark   
Type IA      Long-distance (high altitude)   BAT   Bantham   
         Westland   Wagtail   
Type II      Two seat fighter   Bristol    Type 23 Badger Mk.I   
Type III      Two seat fighter   Austin   Greyhound   
         Bristol   Type 69   Project
         Westland   Weasel   
Type IIIA      Two seat fighter   Armstrong Whitworth   Wolf   
         Avro   Avro 532   Project
         Bristol   Type 70   Project
Type IIIB      Two seat fighter   Avro   Avro 532   Project
Type IV      Twin engined bomber   Avro    Avro 523 Pike   
         Avro   Avro 533 Manchester   
         Boulton Paul   P.7 Bourges   
         de Havilland   DH.11 Oxford   
         Sopwith   Cobham   
Type IVB      Two seat fighter   Avro   Avro 532   Project
         Avro   Avro 549 Aldershot Mk.I   
(V)               
Type VI      Twin engined bomber   Avro    Avro 523 Pike   
         Avro   Avro 533 Manchester   
         Boulton Paul   P.7 Bourges   
         de Havilland   DH.11 Oxford   
         Sopwith   Cobham   
Type VII      Night Bomber   Avro   Avro 523 Pike   
         Nieuport   London   
Type VIIA         Avro   Avro 555 Bison   
Type VIII      Bomber   Avro    Avro 533 Manchester   
         Boulton Paul   P.7 Bourges   
         Bristol   Type 24/25 Braemaer   
         Bristol   Type 68   Project
         de Havilland   DH.11 Oxford   
         Sopwith   Cobham   
Type IX      Medium bomber   Avro   Avro 556   Project
         Bristol   Type 71   Project
         de Havilland   DH.14 Okapi   
(X)               
Type XI      Heavy bomber   Siddeley   Sinaia   
Type XII                5/20
(XIII)               
(XIV)               
(XV)               
(XVI)               
(XVII)               
(XVIII)               
(XIX)               
Type XX         Glochestershire    Nightjar   
Type XXI      Two seat amphibian fighter   Avro   Avro 541   Project
         Boulton Paul   P.11   Project
         Bristol   Type 35   Project
         Fairey   Pintail   
Type XXII      Single seat carrier based torpedo bomber
(ex N.1B, re-issued 1920)   Blackburn   Blackburd   
         Blackburn   T.1 Swift   
         Short   Shirl   
               
***               
               
Type XXX      Flying boat   Short   Cromarty   
         Vickers   Valentia   
(XXXI)               
Type XXXII      Prototype training seaplane   -   -   (cancelled 1918) - Short Sporting Type produced to this specification
Type XXXIII      Four engined long range flying boat   Fairey   N.4   
               
               
               
3
User Artwork / Re: Motocar's Cutaway drawings
« Last post by Motocar on Yesterday at 06:22:44 pm »
Just amazing work, Motocar!!! What program(s) did You use to make those great cut-outs?


I use modest paint and a lot of creativity ...!  Motocar
4
Propulsion / Re: Rolls-Royce Liftjets from RB82 to XJ-99
« Last post by sferrin on Yesterday at 12:44:01 pm »


And on a more general note, i was trying to find out who really invented the 3BSN as we know it ?



How about  Jack Britt, Rolls-Royce? (patent filed June 1954)  U.S. Patent  2,933,891, "Jet pipe arrangements for jet propulsion engines". He even has an arrangement for reversing thrust. http://www.google.com/patents/US2933891
[/quote]

IIRC this one was also before US efforts:

5
Propulsion / Re: Rolls-Royce Liftjets from RB82 to XJ-99
« Last post by charleybarley on Yesterday at 12:31:35 pm »

And on a more general note, i was trying to find out who really invented the 3BSN as we know it ?



How about  Jack Britt, Rolls-Royce? (patent filed June 1954)  U.S. Patent  2,933,891, "Jet pipe arrangements for jet propulsion engines". He even has an arrangement for reversing thrust. http://www.google.com/patents/US2933891

There is also a drawing of a 3BSN, Fig 21-8, in "The Jet Engine" RR Limited, 3rd edition dated July 1969.

And, filed May 1967, a P&W cooling scheme for an afterburner 3BSN. http://www.google.com/patents/US3429509

The first to fly? Perhaps this is a 3BSN on the YAK38 http://scalemodels.ru/modules/photo/viewcat.php?id=4223&cid=170&min=60&orderby=dateA&show=12
6
Hi,

we forget to talk about RAF D. of R (Directorate of Research) specifications,and they were
a 12 issues;

D of R.1     ------?
D of R.2     ------?
D of R.3     recce aircraft; DH-30,DH-31 & DH-41 and Avro-?
D of R.3A   recce aircraft; DH-35 and Avro-?
D of R.4     long-range twin engined bomber; HP-24 Hyderabad and Vickers Virginia
D of R.4B   long-range single engined bomber; Avro-549 Aldershot,DH-?,HP Type-X
D of R.5     ------?
D of R.6     single seat shipboard fighter; DH-33,Avro-?,Fairey ?
D of R.7     deck-land recce aircraft; Blackburn R.1 Blackburn
D of R.8     deck-land torpedo carrier; Blackburn T.2 Dart and HP-19
D of R.9     coastal defence torpedo bomber; DH-36Blackburn T.4 Cubaroo,Avro-556 &
                 Avro-557
D of R.10   ------?
D of R.11   ------?
D of R.12   troop carrier; DH-28 and Vickers Victoria
7
Northrop Stalker II - Cobra
https://www.secretprojects.co.uk/forum/index.php/topic,27940.msg291016.html#msg291016

Sneaky Pete - Long EZ
https://www.secretprojects.co.uk/forum/index.php/topic,5017.msg107004.html#msg107004
From our own Stargazer:
http://stargazer2006.online.fr/aircraft/pages/sneekypete.htm

There are references to the Ghost Squadron on SPF regarding the Pave Hawk squadron based at Groom Lake that is used for SAR and range activities.

V-Indicator - Platform Unknown
The Lockheed project involved a laser anemometer optical air data system that would be used to take place of a conventional pitot-static probe system, where its protrusion would be a problem for LO signatures or for very high speed aircraft. The Vindicator is actually "Velocity-V" indicator.

There is a forum that covers these patches and others on SPF at:
https://www.secretprojects.co.uk/forum/index.php/topic,4374.msg36203.html#msg36203
8
User Artwork / Re: Motocar's Cutaway drawings
« Last post by Motocar on August 21, 2017, 06:47:33 am »
Retired by mistake in quote published.

Motocar
9
User Artwork / Re: Advancedboy's Designs Topic
« Last post by ADVANCEDBOY on August 21, 2017, 03:05:13 am »
What aircraft would you like to be sketched? I can do a new design  for an existing or theoretical program or rework my older designs. The hydroplane was my older sketch reworked.
10
hi all

North Korean new missiles:
KN-12 = 122-mm MLRS
KN-15 = Pukguksong-2 (MRBM)
KN-16 = 240-mm MLRS
KN-17 = Hwasong-12 (MRBM)
KN-18 = ? (MaRV SCUD variant)
KN-19 = Kumsong-3 (cruise missile)
KN-20 = Hwasong-14 (ICBM)
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