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Post Info TOPIC: Sikorsky models


Former Deputy Administrator

Posts: 897
Date: Feb 15, 2012
RE: Sikorsky models
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I think the EH-60A came after the YEH-60B...

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Stéphane



Veteran Member - Level 3

Posts: 305
Date: Feb 17, 2012
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Ad for S-61 with Gnome engines, sorry about the size. ashamed

Sikorsky S-61 Helicopter Bristol Siddeley Gnome (1963)



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Former Deputy Administrator

Posts: 897
Date: Mar 3, 2012
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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:

  • 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.

Same source (attached image) also clearly gives the V-tailed flying crane project as the S-63. However, other sources suggest the HLH contender was the S-73, not the S-63. This seems coherent with the fact that it is a development of the S-64 and should therefore be a later project with later (not preceding) designation. Besides, other artwork of the very same project is dated 1970.

Still, the seemingly "final" Sikorsky HLH shows a very different shape. So either the first configuration (based on the DS-103 design) was S-63 and the final version were S-73, or they were all S-73 and S-63 was the S-62B as has previously been said.



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Stéphane

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