<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
         <<  Lancair Builders' Mail List  >>
         <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>

Bob Wolf asks about mounting the batteries and hydraulic pump in the forward
deck area....

In my installation this area is filled with other equipment and the pump and
batteries won't fit.  I have the header tank, forward hinge canopy system (you
need bracket clearance for this option), and 14 inches between the header tank
wall and IP forward surface.  14 inches is more than absolutely required but 13
inches would be the minimum.  Part of the reason is that I have 3 float switches
on the rear of the header tank that stick out a little less than an inch (these
could be relocated out of the way). I located the HSI remote gyro in front of the passenger's feet (6+ footers will
start to grumble) and put the VMS control unit, voltage regulator, dimmer module
and hydraulic cross-over valve above the passenger's legs, just behind the
co-pilot instruments.   If you go with VMS engine instruments you'll be locating
a manifold pressure transducer inside along with a vacuum pressure regulator,
fuel filter, altitude encoder, and maybe the fuel boost pump (as I did).   Don't
forget the heat valve, and brake hydraulic resevoir will be demanding their
space.  Also, the panel wiring is suprisingly profuse.  There is a lot of stuff
up here depending on how fully equipped your panel will be.

Why not leave the battery and hydraulic pump in the rear, say, right behind the
seats, where they are out of the way, so to speak?  They tuck neatly on either
side of my outback gear style flap actuator and are in the shadow of the seat
back. The pound saved in cable and hydraulic tube is not worth the tradeoff in
added aggravation in my opinion.   And then there are CG questions.  Your
proposed position is a dramatic shift forward in CG from the plans.  You will
need a compensating shift from something else (like omitting the header tank as
many have done) to bring the CG back.

Good luck.
Ed de Chazal

LML homepage:   http://www.olsusa.com/Users/Mkaye/maillist.html