Re: [DML] Can someone answer my question?

["tmpintnl" <tobyp@xxxx>]

In regards to the torsion bars, these will be very difficult to 
re-create. If I understand the technology and history correctly, 
Grumman Aerospace made these in a fashion similar to the F-16 canopy 
torsion springs. Because of the enormous stresses on our bars 
(nearly a 90 degree twist in a part only a couple of feet long) the 
bars were cryogenically tempered in liquid helium at about 7 degrees 
Kelvin. That's very cold, by the way. This is much different than 
the typical spring tempering at high temperatures, with a quench in 
oil or air. Bottom line - I don't think that the local spring house 
is going to want to attempt these. What to do? I don't know at this 
point. Does anybody on the list have a different perspective on my 
understanding? I would almost think that a call to Northrop-Grumman 
might at least be interesting. Perhaps I can dredge up a contact.

Toby Peterson VIN 2248
Winged1 

--- In dmcnews@xxxx, "Ed Garbade" <edgarbade@xxxx> wrote:
> Anyone seriously looked into what it would take to run a fibrication 
> production of them? Houston...?