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Chris,
Thanks, the pdf is worth your weight in gold. The culmination of
years in the belly of the beast. Marv should put in the LML ref
material.
Scott Krueger
In a message dated 9/4/2012 3:31:18 P.M. Central Daylight Time,
chris_zavatson@yahoo.com writes:
Danny,
No affect on gear
movement.
I should add however that
elevated high-side pressure is one of the contributing factors to gear
extension failures in a standard system set up. My low pressure setting is
higher than the nominal 550 psi. It is set to 800 psi to avoid the
pressure spike that propogates through the system when gear down is
selected.
see "Failure to Extend" on page
10 for more detail.
Chris
Zavatson
N91CZ
360std
From: Danny
<danny@n107sd.com>
To:
lml@lancaironline.net
Sent:
Monday, September 3, 2012 11:54 AM
Subject: [LML] Re: Thermal influence on
Hydraulic Pressure
Chris,
What was
the impact on the gear movement?
Danny
LNC2-360
N 38° 43'
25.7"
W 77° 30'
38.6"
From: Chris Zavatson
[mailto:chris_zavatson@yahoo.com]
Sent: Saturday, September 01, 2012 11:32
PM
To:
lml@lancaironline.net
Subject: [LML] Thermal influence on
Hydraulic Pressure
-took
this photo after a descent from 16.5k to 1,500
ft.
OAT went
from 42 to 94 degrees.
High
Pressure gauge is pegged at 2,000+ psi
-Didn't
get a photo, but the opposite happened on the ramp in Spokane. After
sitting for an hour, the low pressure gauge was pegged at 1,200 psi+.
Spokane might not be the warmest spot in the country, but at 85 deg F, it was
55 degrees warmer than the cold soak on the previous
leg.
Temperature
changes have a big impact on system pressure.
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