I agree with Jos. The would-be "S-63" looks nowhere near what the S-62B was supposed to be. If anything, the design looks more like an S-64/S-65 derivative.Jos Heyman said:Some interesting finds by Maveric: the S-28, S-63 and this transport aircraft.
The data I had so far said:
"The S-28 designation was first used in June 1919 for a heavy bomber design for the White army of Kolchak.
The designation was again used in November 1919 for a multiseater biplane with a span of app. 40 m and three engines of 700hp. There were two versions of the project:
· Option "A" - two engines placed on the lower wing, the third in the nose or the back of the nacelle fuselage; and
· Option "B" - two engines placed on the lower wing, third on the upper wing, tailplane had a different form of fastening."
This drawing, dated 22 April (or is it July) 1919 does not nicely fit.
As far as the S-63 is concerned, this is what I had so far:
"Also known as S-62B, the S-63 referred to a S-62 fitted with a S-58 rotor system."
The picture does not look like that at all.
Finally, the 4 engined transport looks very late 1940s to me - this was the time Sikorsky was seriously working on helicopters, so why a transport diversion?
Just some thoughts...
Why ? http://www.secretprojects.co.uk/forum/index.php/topic,17655.msg168291.html#msg168291Ardavan.K said:You are right Jembia.. My Mistake...Is there any way to remove them ?!
The February 2013 issue of the Sikorsky Archives News agrees with this listing of the S-46 through S-49, and they ought to know!Stargazer2006 said:Recent evidence provided by Maveric seems to point to a very different allocation of Sikorsky's S-46 to S-48 designations. This leads to the following modified list:
Same source (attached image) also clearly gives the V-tailed flying crane project as the S-63.
- S-46 = VS-300 and VS-300A
- S-47 = VS-316A (R-4, HNS)
- S-48 = VS-327 (R-5, HO2S)
Considering the overall quality and reliability of the source, I'm strongly inclined to believe that the above is correct.
In that case, the following designations would remain a follows:
- S-49 = VS-316B (R-6, HOS)
- S-50 = uncompleted project
- S-51 = H-5, HO3S-1, etc.
Link: https://twitter.com/TheWoracle/statuses/436184054082600960Graham Warwick @TheWoracle 19. Feb.
@SikorskyAircrft CH-53K facts: 4 flight-test engineering development models are YCH-53Ks, model number is S-95, name to come at May rollout.
Source: https://flic.kr/p/2afArysSkyblazer said:Here is a list of as-yet undesignated Sikorsky projects and prototypes which I have pics of (by no means exhaustive!):
Tests of parasol wings on biplane airframes:
- UTV Universal Tactical Vehicle flying crane proposal