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- Path: sparky!uunet!wupost!uwm.edu!ogicse!das-news.harvard.edu!spdcc!merk!alliant!doug
- From: doug@alliant.com (Doug Bloomberg)
- Newsgroups: rec.aviation,rec.aviation.misc
- Subject: Re: Frost
- Summary: WATCH for *SNOW* in your tailcone.
- Keywords: Frost
- Message-ID: <1993Jan2.232039.9342@alliant.com>
- Date: 2 Jan 93 23:20:39 GMT
- Article-I.D.: alliant.1993Jan2.232039.9342
- References: <C02u32.n1E@oryx.com> <1992Dec31.111116.20268@walter.cray.com>
- Organization: Alliant Computer Systems Corp.
- Lines: 54
-
- In article <1992Dec31.111116.20268@walter.cray.com> slow@ferrari.cray.com (David Slowinski) writes:
- >In article <C02u32.n1E@oryx.com>, xdejcj@mustang.NoSubdomain.NoDomain (james c janssen) writes:
- >> The ATP I was with sprayed the plane down with water.
- >>
- >>It seems like I have read somewhere that this is not a good technique
- >>for removing frost. Can anyone comment on this.
- >>
- >Don't try that trick here in Wisconsin (-7 degrees Farenheit today).
- >You would certainly end up with lots of ice. The airframe and
- >controls and passenger doors would be entombed in ice until spring.
- >
- Last year a fellow ower took our Cardinal from it's nice dry
- hanger, and flew to Minn. for a long weekend. He had the plane tied
- down outside while in Minn. Of course it snowed (I hear it always
- snows in Minn. except for July 4th) and to remove the ice and frost
- after he removed most of the snow he moved the plane into a hanger
- for a few minutes. The plane was cleared off and he flew back to
- JeffCo (Denver). He called me when he was in, I was to go away the
- next day. He said all was fine except the pitch control seemed to
- be binding as he neared home.
-
- I went out early the next day, tried the controls, and the yoke
- would not move in or out, roll control was free and fine. I opened
- the bulkhead behind the baggage compartment. I looked into the
- tail cone, it was about 2/3 full of *SNOW*. The bottom of the tailcone
- was solid ice. (The cables for the stabilator run along the bottom
- of the tailcone).
-
- It took me 5 hours using a 125,000 btu salamander and a hair dryer
- to melt the snow and dry out the tail cone.
-
- So what happened?
-
- When the plane was tied down, apparently the wind was blowing directly
- at the tail. The Cardinal has a gap in the tailcone to allow the
- stabilator to move. Even though there was only 6-8" of snow fall, the
- wind was able to fill the tail cone.
- When the plane was brought inside to melt the ice glaze it started to
- melt the snow in the tailcone. Luckily it didn't refreeze for some
- time. Other wise there would have been NO pitch control.
-
- Also, there was a heck of a weight/balance problem.
-
- So... What should you do?
-
- When in snow country, it wouldn't hurt to have a look inside the
- tailcone when preflighting a Cardinal or Piper or any other plane
- with a means for snow to enter. If there is snow, move the plane
- to a warm place melt the snow and dry it out.
-
- Just a word of caution.
-
- Doug Bloomberg
- RV-6 builder.
-