I have two fans on my panel - both in front of the pilot on top, about 4 inches
in from the windshield. I need the cooling as I have a full IFR panel, with a
Garmin 430 W that puts out more heat than my college year's Morgan (sport car)
heater ever did (one would think by owning a Morgan one would learn from that
about English engineering - I must be infected with something to build an
English
airplane) . I also have a temperature controlled thermostat with a timer
so that on landing the fans run for up to 45 minutes after turning off the
engine
(I have a secondary battery and buss to run my backup attitude indicator
and soaring buss). In the winter the fans also de-mist the windshield. It is
important to have openings in the bottom so air can be drawn in. I realize the
bottom of the panel doesn't fit that well but be sure you have sufficient area
to allow air in. I also have a fan that has tubing blowing directly into the
Garmin 430, 330 transponder and GRT HX EFIS. (Yes, I know - it is heavy but I
think the real weight problem comes from the Jacuzzi in the back bay. And the
A/C doesn't help.) (Just joking about the A/C and Jacuzzi.) By the way, despite
all the IFR stuff and added weight I get 136 kts flat out at 1000 feet, which
may be due in part to the high top which seems to make it faster than normal
Europas despite more frontal area.
Gary Leinberger
N388SG
Lancaster, Pa. USA
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[owner-europa-list-server@matronics.com]
on behalf of Europa-List Digest Server [europa-list@matronics.com]
Sent: Friday, May 30, 2014 3:02 AM
Subject: Europa-List Digest: 1 Msgs - 05/29/14
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Today's Message Index:
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1. 10:24 PM - Key Sanding................and Instrument Panel ventilation
(Tony Renshaw)
________________________________ Message 1
_____________________________________
From: Tony Renshaw <tonyrenshaw268@gmail.com>
Subject: Europa-List: Key Sanding................and Instrument Panel
ventilation
Gidday,
I want to air a hypothesis that key sanding does NOT matter what grade of paper,
so long as you dull it off. The premise is that by roughening you are removing
the gloss, and increasing the surface area. I am aware that the heavier the
grade of paper you use, the more likely you are to damage the glass fibres
within
the matrix. So, I dont want advice on Grade of paper, but I do want to ask
whether people think that this could be true:
I believe there is a likelihood that whether you use 240 Grit paper, or 60 Grit
paper, that the substrate will increase in surface area by the same amount.
Thats my debate.
I also believe there is a likelihood that the amount will be twice the surface
area, but I dont know how to mathematically prove it, however Id like it
explained
in simple terms, what the actual formula is in someone elses view. In fact
Ill go a step further and hypothesise that it is
1/2 surface area of a circle MINUS the are of the diameter of a similar
radius
circle.
Im going to retract double, and reckon it is closer to a 50 % increase.
Any takers? Anyone had enough red wine to give this consideration? There might
be two guys out there in the Cottswalds, but they will probably just argue
between
themselves, so I thought Id air it to the greater Europa community.
Regards
Tony Renshaw
P.S. I have an instrument panel fan, a computer fan, and I am wondering where
would
be the most advised place to put it? I am thinking midway between the main
panel and the radio stack, behind the mono wheel gear retraction handle rebate,
on the RHS. Whatdoyareckon?
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