Today's Message Index:
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1. 05:25 AM - Re: 'Tis the Season' Reminder (Richard Pike)
2. 04:44 PM - Re: 'Tis the Season' Reminder (Gary Aman)
Message 1
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| Subject: | Re: 'Tis the Season' Reminder |
Years ago my brother in law was flying his Quicksolver MX, had a Cuyuna with a
Mikuni on it, and it was a fall day, humid and damp. It was acting up, so we pulled
off the aircleaner, tied it down, and let it run for awhile.
After a while, we got to watch a little "half-volcano" of ice crystals build up
around the front side of the slide needle as the fuel was coming up around the
needle. It never got big enough to close the throat, but it did get big enough
to alter the proper airflow function of the carb. If I remember right, it was
about 3/8" high, and 1/4" wide at the base.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
richard (at) bcchapel(dot)org
Kingsport, TN 3TN0
Now faith is the substance of things hoped for, the evidence of things not seen.
Hebrews 11:1
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Message 2
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| Subject: | Re: 'Tis the Season' Reminder |
It seems that carbs that have cross structure down stream of the fuel disch
arge point ice more readily.The Bing 64 on the Jabiru is the worst I've exp
erienced.Have any of the 912 engines had this issue?
G.Aman MK3 C Jabiru 2200A 765 hrs electric carb heat
-----Original Message-----
From: Dennis Thate <retroman@frontier.com>
Sent: Wed, Oct 24, 2012 9:54 pm
Subject: Kolb-List: 'Tis the Season' Reminder
The temperature-dew point spread tells a pilot how close the air is to bein
g
100% saturated, Fortunately old wise men 503 Rotax pilots rarely fly in su
ch
conditions.
There seems to be a general consensus that two strokes gas /oil mixtures ar
e
invincible to icing, if you have the BING 54 carbs on your two stroke 503 a
s
most Kolb Firestar pilots have they are not as prone to carb icing, because
it
works with a piston and not a valve as most other carbs do so most ice that
will
be formed will by design be sucked into the engine, and heated up to melt d
own
preventing the carb piston itself from freezing in a fixed position.
The highest probability for carb icing is during a long decent. It's good
General Aviation airmanship to add carb heat and clear the throttle at inte
rvals
during a glide approach, keep the power up, and remain with gliding distanc
e of
good fields until you get home and don't reduce power until you are sure yo
u can
make the field.
Fly Safe, stay revved up !
--------
Both optimists and pessimists contribute to our society. The optimist inve
nts
the airplane and the pessimist the parachute. ~Gil Stern
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