----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
Guys.
2 weeks ago I managed to fly my Coupe again, it happens rarely these days,
and I had our previous discussion in mind about the sink speed of a Coupe in
a power off situation.
So I went up to some 3000ft, pulled the power and let the thing windmill
it's way down.
At first my VSI indicated a 500ft or so at around 70MPH, then at 60 I saw
some 300ft.
Now as much as we wish that our Coupes are beating every glider out there, I
realized that something was not right.
I added power and went up to 3000 ft again to try it at a different spot.
Sure enough , the sink rate was around 700ft indicated this time showing
it's best values at some 60-70MPH indicated. Altimeter was 29.99 and outside
temp was minus 10 degrees, the air was calm.
I then took the time to measure the actual sink that happened over one
minute and the altimeter measured merciless 800ft.
Now I need to correct myself about the sink rate of my Coupe. My previous
observations could have been affected by flying through some air bubbles or
otherwise upstreaming air. It turns out that my best glide speed is between
60 to 70 Miles indicated on my airspeed meter and that it is around
800ft/minute. Maybe less with some luck, more if you hit a downstream.
At 4000 ft altitude above ground I would have 5 minutes glider time until I
touch ground.
At 60 Miles/hour, I would have 1 mile/minute, giving me a radius of 5 miles
(8 km) to find a suitable spot for landing, provided no wind condition.
Cross fingers that will never happen.
Hartmut
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, April 01, 2006 12:12 AM
Subject: [COUPERS-TECH] SB 32
----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
Hello All,
My favorite beverage is much more enjoyable this evening due
in part to the fact that I just completed SB 32 and found no
bad rivets. The Tech was very meticulous and had not done
an inspection on Ercoupes before. I do have the belly skins
off so the rivets were easy to access. The ridge on the
bucked tail did cause problems and would give false readings
if not careful. After about 30 minutes of fooling with about 10
rivets I knocked the ridge off with a fine curved flat file and
things went much faster. 4.5 hrs. @ $85 per hour. I highly
recommend that SB 32 be done if anyone has the belly skin
off. BTW, Applied Technical Services did the work.
John
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