Sierra 793 in Finnish service

Message 1628, Mar 30, 2001:
Another interesting US variant design (eBay item 1126211415--Finnish helicopter aircrew helmet made by Sierra Engineering in Montecito, CA). Sierra apparently did not offer these special custom configurations in the US market. The internal head harness is indeed based on the SPH-3B type sling and the earphone mounts appear to be, as pointed out, similar to the APH-6 type (and also used by China in its TK-2 type helmets--probably modeled after the US system), with different coms. I have friends in the Satakunta Lennosto (FAF) but never saw one of these while visiting that squadron in Finland; they must have gone out of use well before my visit (in 1992). The Mi-8s that were in use during my visit had other helmets in use by their crews. All in all, another fascinating variant model. Thanks to Hud for bringing it to our attention. Cheers, DocBoink
----- Original Message -----
Hi Ron,
That is also an interesting helmet you pointed out (eBay item no. 1126211415). It looks as if it is based on an APH-6 type helmet with  those earphone adjustment disks on the side and edge profile around  the nape, but the comms system is different with the plug coming out on the left side. Also, this helmet has a strap suspension assembly which none of the APH-6 types in Jet Age Flight Helmets seem to have (they do not have the necessary screws on the exterior). Cheers, Chris