Pitot Heat

"Lakeview Bill" wrote in message
m...
How necessary would it be to have a pitot heater if you are flying
year-round VFR day (only) in the Chicago area?


I'll vote "very necessary." Once at the Naval Nuclear Power Preparatory
School, in North Chicago, there was ice on my windshield so thick I
broke the tip off my Herter's sheath knife trying to get it off the
windshield of my car. About 1/4" to 3/8" thick. And that was during the
day in VFR conditions.

John Lowry
Flight Physics

John T Lowry wrote:

I'll vote "very necessary." Once at the Naval Nuclear Power Preparatory
School, in North Chicago, there was ice on my windshield so thick I
broke the tip off my Herter's sheath knife trying to get it off the
windshield of my car. About 1/4" to 3/8" thick. And that was during the
day in VFR conditions.

Freezing rain?


--
Peter













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"John T Lowry" wrote in message
nk.net...

"Lakeview Bill" wrote in message
m...
How necessary would it be to have a pitot heater if you are flying
year-round VFR day (only) in the Chicago area?


I'll vote "very necessary." Once at the Naval Nuclear Power Preparatory
School, in North Chicago, there was ice on my windshield so thick I broke
the tip off my Herter's sheath knife trying to get it off the windshield
of my car. About 1/4" to 3/8" thick. And that was during the day in VFR
conditions.

John Lowry
Flight Physics


But did that ice first appear during day VFR conditions?

"Gig 601XL Builder" wr.giacona@coxDOTnet wrote in message
news:tKV7e.16620$up2.10612@okepread01...

"John T Lowry" wrote in message
nk.net...

"Lakeview Bill" wrote in message
m...
How necessary would it be to have a pitot heater if you are flying
year-round VFR day (only) in the Chicago area?


I'll vote "very necessary." Once at the Naval Nuclear Power
Preparatory School, in North Chicago, there was ice on my windshield
so thick I broke the tip off my Herter's sheath knife trying to get
it off the windshield of my car. About 1/4" to 3/8" thick. And that
was during the day in VFR conditions.

John Lowry
Flight Physics


But did that ice first appear during day VFR conditions?

Unfortunately, I don't recall the details. This was back in 1965.

John Lowry
Flight Physics

If there was 1/4" to 3/8" ice on my airplane, a plugged pitot tube is not my
only problem.

--
Hello, my name is Mike, and I am an airplane addict....



I'll vote "very necessary." Once at the Naval Nuclear Power Preparatory
School, in North Chicago, there was ice on my windshield so thick I
broke the tip off my Herter's sheath knife trying to get it off the
windshield of my car. About 1/4" to 3/8" thick. And that was during the
day in VFR conditions.

John Lowry
Flight Physics

I'll vote "very necessary." Once at the Naval Nuclear Power Preparatory
School, in North Chicago, there was ice on my windshield so thick I
broke the tip off my Herter's sheath knife trying to get it off the
windshield of my car. About 1/4" to 3/8" thick. And that was during the
day in VFR conditions.




One freak time 35 years ago, on a car no less, and that qualifies as
very necessary? Remove head from ass.

Newps wrote:
I'll vote "very necessary." Once at the Naval Nuclear Power Preparatory
School, in North Chicago, there was ice on my windshield so thick I
broke the tip off my Herter's sheath knife trying to get it off the
windshield of my car. About 1/4" to 3/8" thick. And that was during the
day in VFR conditions.

One freak time 35 years ago, on a car no less, and that qualifies as
very necessary? Remove head from ass.


i'm fairly certain that response is neither necessary or constructive.
his point was that it can happen, and it can. in his mind, the pitot
heat question is answered with a "yes." your's isn't. so what?
there's no need to try to silence him.

fwiw, I'm a fairly high time pilot (IFR). I need carb heat a lot more
than pitot heat in VFR. At run up on a normally carburated engine if
you don't get an RPM dropoff when you pull the carb heat on, you don't
go. There's no such test for pitot heat (although I will tell you if
I'm going IFR I turn it on for a while when first in the cockpit, then
make sure it's warm during the walk around.

Yup, even if you aren't planning on using it, it is nice to know what works
and what doesn't before you leave the ground.

--
Hello, my name is Mike, and I am an airplane addict....


"Tony" wrote in message
ups.com...
fwiw, I'm a fairly high time pilot (IFR). I need carb heat a lot more
than pitot heat in VFR. At run up on a normally carburated engine if
you don't get an RPM dropoff when you pull the carb heat on, you don't
go. There's no such test for pitot heat (although I will tell you if
I'm going IFR I turn it on for a while when first in the cockpit, then
make sure it's warm during the walk around.