gerard wrote:
. . . . . traditional red 2 squadron helmet . . . . .
. . . . why it was acceptable on the Cheetah and not today on the Gripen?
10 or 15 years ago, I was looking for parts for a red 2 Sqn helmet and discovered they were manufactured by Lafe Helmets and Accessories, then in Howard Street in Benoni. I was told that Lafe had copied a USAF ACM helmet, which the Cheetah C project office had borrowed. These red ACM helmets were way more comfortable, lighter, less restrictive than the French Elno helmets which were worn on earlier SAAF jets.
I think the Cheetah D pilots and Navs generally used the white Elno helmets - the red helmets were primarily worn by Cheetah C pilots.
The red helmets were not great in terms of protection - the visor was essentially held in place by elastic, so it would fly off in case of ejection. The helmets were very high around the face and at the back of the neck, so the pilot could move his head easily, but this also reduced impact protection. I don't think the red 2 Sqn helmet was ever qualified according to MIL-H-87174 or similar specification for helmets, and SAAB would probably have refused to integrate them onto Gripen because of this.
But the pilots liked them!