On Sat, 26 Jul 2008 15:07:12 -0700, Tim Taylor wrote:

On Jul 26, 2:19 pm, GK wrote:
On Jul 26, 2:45 pm, Martin Gregorie



wrote:
On Sat, 26 Jul 2008 07:17:44 -0700, GK wrote:
There has been an accident in
Alabama where a roman screw retracted from the lower spar (due to a
wear of supporting bushing) and wings collapsed during a high speed
pass.

What is a roman screw?
Is it the same type of wing fixing that the SHK used?

I've not seen the term before and a web search failed to find a suitable
definition.

--
martin@ | Martin Gregorie
gregorie. |
org | Zappa fan & glider pilot

-http://pl.wikipedia.org/wiki/%C5%9Aruba_rzymska

In the USA it would be called a Turnbuckle.

Same here, but how, exactly, does that attach the wings? I can understand
that it might pull them together and onto the fuselage pickup pins, but
what locks the spars together?

Martin Simon's 3-view of the Cobra shows the spars apparently meeting at
the fuselage centre line and some sort of circular hatch above their
meeting point: that's why I asked if the Cobra used a similar mechanism to
the SHK.


--
martin@ | Martin Gregorie
gregorie. |
org | Zappa fan & glider pilot