Mailing List lml@lancaironline.net Message #6497
From: <RWolf99@aol.com>
Subject: Re: Trim and Pump Relay Circuit Breakers
Date: Sun, 27 Aug 2000 18:15:56 EDT
To: <lancair.list@olsusa.com>
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Some good ideas in the last few days.  I love this forum!  Scott Krueger points out the latent disaster in omitting a pump relay breaker, so I guess I'll have to put that in.  Though in point of fact, powering the relays from the 50 amp breaker, with a smaller breaker (or an in-line fuse) between the 50 amp breaker and the relays (to enable little wires to the relays), is the nugget I extracted from his ideas.  This secondary breaker (or fuse) need not be on the panel.

Several others have pointed out interesting ideas for aircraft in which a runaway trim is catastrophic, but the question remains....

Can control be maintained in a 320/360 with full nose-up or nose-down trim?

It may be an academic question at this point, as powering the relays off the 50 amp breaker (and fusing those wires) gives me the panel space I need to include a trim system circuit breaker.

- Rob Wolf

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