BeechTalk - BT

Username Protected · **Posted:** 23 Dec 2017, 23:46

Can’t they spray Type I or III fluid on it? Usually there’s is warmed.

Probably can’t due to enviro Mark but Jet A will be warm enough to melt if sprayed on with a weed killer bucket. If it is an underground tank.

Username Protected · **Posted:** 23 Dec 2017, 23:51

Don’t have any deice. Outside air temp 37. We were at 350. Fuel is -40c

Username Protected · **Posted:** 24 Dec 2017, 00:08

I cannot find you a Cessna reference saying that frost under the wing in the area of fuel tanks is good to go. But I believe I have seen it at one time.

121.169 says:

(b) No person may take off an aircraft when frost, ice, or snow is adhering to the wings, control surfaces, propellers, engine inlets, or other critical surfaces of the aircraft or when the takeoff would not be in compliance with paragraph (c) of this section. Takeoffs with frost under the wing in the area of the fuel tanks may be authorized by the Administrator.

Transport Canada says: http://www.tc.gc.ca/eng/civilaviation/publications/tp10643-chapter1-summary-69.htm

Aircraft may be permitted to take-off with hoar frost on the fuselage of rear mounted engines or when cold soaked ice exists on the underside of the wing, if approved in the aircraft manufacturers instructions.

Username Protected · **Posted:** 24 Dec 2017, 00:10

Ok you asked. Underside, it’s AOK top I’d be more worried. How long is the runway? If you have a bunch extra no problem.

Username Protected · **Posted:** 24 Dec 2017, 00:15

Username Protected wrote:

Ok you asked. Underside, it’s AOK top I’d be more worried. How long is the runway? If you have a bunch extra no problem.

8,000

Username Protected · **Posted:** 24 Dec 2017, 00:19

Quote:

FBO says no to for an hour.

.

Says no to hangar for an hour?

Username Protected · **Posted:** 24 Dec 2017, 00:19

Can you get under the wing and scrape off the ice/frost with the edge of a credit card?

I would scrape it smooth and be good to go.

Username Protected · **Posted:** 24 Dec 2017, 00:20

To back up Allen’s findings in the GII you are good with underwing frost. 8,000 is a lot of runway.

Username Protected · **Posted:** 24 Dec 2017, 00:24

Username Protected wrote:

Quote:

FBO says no to for an hour.

.

Says no to hangar for an hour?

It would take quite a few hours in a heated hangar to make a difference.

Not sure I’d worry about it, based on the pic and assuming the top side is clear.

Username Protected · **Posted:** 24 Dec 2017, 00:31

FAA discussion about frost on page 9 of https://www.faa.gov/documentLibrary/media/Notice/N_8900.431.pdf

Username Protected · **Posted:** 24 Dec 2017, 00:35

Sec. 91.527 — Operating in icing conditions.
(a) No pilot may take off an airplane that has frost, ice, or snow adhering to any propeller, windshield, stabilizing or control surface; to a powerplant installation; or to an airspeed, altimeter, rate of climb, or flight attitude instrument system or wing, except that takeoffs may be made with frost under the wing in the area of the fuel tanks if authorized by the FAA.

Username Protected · **Posted:** 24 Dec 2017, 00:45

Until 2008 the FAA allowed polishing of frost smooth. That was removed with this NPRM - https://www.federalregister.gov/documents/2008/05/08/E8-10246/removal-of-regulations-allowing-for-polished-frost-on-wings-of-airplanes

Username Protected · **Posted:** 24 Dec 2017, 04:38

Helpful guys. Thanks. :clap:

The FBO didn't want to put it in the hangar. Cost to run the heat I suppose. Whatever. Did get them to use a blower used to start military jets (i believe) Blew warm air. Loud as hell. Did the trick. No way a credit card would have worked. To thick and too much of it.

Didn't realize the FAA was giving a pass un underwing ice. Good to know.

Really amazing how cold that wing is and how hard the ice is and how quickly it forms.

10 hours of flying today.

Riddle me this...I fly KSDL to KFSM. 70 knot tailwinds. Fly back 3 hours later...128 knot headwinds. WTF?