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Date: Fri, 18 May 2012 08:40:39 -0400
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Subject: Re: [LML] L360 canopy latch
From: Charles Brown <browncc1@verizon.net>
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Rob,

We had quite a discussion about the Legacy latching system in Oct/Nov =
2011 after mine released (one side only; the other held) at 210kias.  I =
would summarize as follows:  The Legacy system (inside and outside =
handles linked by torque tube; latches that rotate forward from the =
fuselage "roll bar" and engage striker plates on the canopy; forward =
hinges) works well if constructed correctly.  Items that the builders =
manual did not cover well include:

-- Particular care must be taken to minimize the gap between the striker =
plates and the latches.  (this seems fairly obvious, but the canopy and =
fuselage "roll bar" may have significant dimensional mismatches that =
need to be compensated).

-- The recommended 20psi pressure in the inflatable canopy seal is far =
too high and I heard a range of 4-8 psi quoted by other builders.  I'm =
using 7.

I've had no problem with mine in the 75 hours since correcting these two =
faults, and yes it is nice/critical to have an outside release =
mechanism.

Charley Brown
Legacy #299
110 hours=