Vietsky From Vietnam, joined Nov 2008, 94 posts, RR: 0 Posted (5 years 4 months 2 weeks 2 days 6 hours ago) and read 8196 times:
Dear A. friends,
I'm usually fly on VNA 321. And sometimes I flown on the aircraft that has nose like this. I'm always curious on why. Could you guy explain me why? This is happened to VNA, does other have the same? or just Airbus/VNA
Zappbrannigan From Australia, joined Oct 2008, 247 posts, RR: 0
Reply 1, posted (5 years 4 months 2 weeks 2 days 6 hours ago) and read 8191 times:
Could just be a temporary replacement nose cone... like the Virgin 737 that taxied into the side of the terminal here, it was a white 737-300 used during their startup period, and they only had red noses (due to the rest of their fleet being red), so it was flying around with a red nose for ages - I think they just left it on for Red Nose day and pretended it was deliberate.
This could be a temporary nose cone, or it could have been borrowed from another airline (seen that here in MEL a couple of times too).
320tech From Turks and Caicos Islands, joined May 2004, 491 posts, RR: 5
Reply 2, posted (5 years 4 months 2 weeks 1 day 4 hours ago) and read 7839 times:
Looks to me like a repaired radome that hasn't been painted yet. The black part is the carbon fibre material, and I have to assume the white portion is either paint or some other coating to prevent erosion until it is properly painted.
Why you would see this on a regular basis, I have no idea. Radomes can get damaged by hail, birds, or ground handling, but it's not that common. You definitely wouldn't want to leave it like this for long.
The primary function of the design engineer is to make things difficult for the manufacturer and impossible for the AME.
Tdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 3, posted (5 years 4 months 2 weeks 1 day 1 hour ago) and read 7803 times:
Quoting 320tech (Reply 3): The black part is the carbon fibre material, and I have to assume the white portion is either paint or some other coating to prevent erosion until it is properly painted.
I thought you shouldn't make a radome from carbon fiber...carbon fiber is too conductive to be radar transparent. Radomes are usually fiberglass or kevar for that reason. It's possible that the front white part is non-carbon and back part (behind the beam sweep area) is carbon, but that seems unnecessarily complex.
EMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 8, posted (5 years 4 months 1 week 4 days 19 hours ago) and read 7022 times:
The black part is the Anti-Static paint. It's a bonding paint used on composite surfaces to better bond the composite to the structure. What is odd here is I've always been told and read you can not fly it in that condition. It must be at least in primer.
"It's not the size of the dog in the fight, but the size of the fight in the dog"
EcuadorianMD11 From , joined Dec 1969, posts, RR:
Reply 13, posted (5 years 3 months 3 days 7 hours ago) and read 5398 times:
A nose change happens so often?
I haven´t seen many battered "overdue" noses, but maybe I just never paid attention.
Odd, at the MD 11 pic they obviously found the time to paint the dark blue line but an awkwardly timed coffee break (or something like that) caused the plane to leave white nosed.
Is there a KLM maintenance guy / lass on Airliners.net at all?
I´d like to ask him / her some tough questions! Beware!!
I presume the nose cone damage comes down to "gliding debris", stuff that the aircraft runs in to that subsequently damages the nose. Do windshields need to be replaced often, and / or wipers for that matter? They take some hammering as well, yeah?
Viscount724 From Switzerland, joined Oct 2006, 25170 posts, RR: 22
Reply 18, posted (5 years 1 month 3 weeks 1 day 7 hours ago) and read 4132 times:
Quoting HAWK21M (Reply 16): Quoting Starlionblue (Reply 15):
Windshields, not as often. But they are much tougher.
Heated windshields are tougher until the heat control unit mal;functions.
As on this WestJet 737-700 a day or two ago (from Transport Canada daily incident summary):
Westjet Boeing 737-700 (C-GWBJ), operating as WJA343, was en route from Edmonton to Kelowna. At about 90 NM northeast of Kelowna while descending through FL270, the captain's forward window began arcing in the upper right-hand corner and then cracked. The crew completed the window damage QRH checklist and the arcing stopped when power was removed from the window. After consulting with company maintenance by radio, it was decided to divert to Calgary for maintenance action. The aircraft subsequently landed at Calgary without further event.
Radomes are subject to sand blasting erosion at altitude by ice crystals and are sometimes covered with a clear silicone film to resist that effect. Actually seen more on private jets. Aside from bird strikes they last a long time but MX's must be vigilant for delaminations for obvious reasons, it's the first component of the streamlining process. I just happen to have one...it is seven feet across and can be picked up by one person. This one is from a 747. Weighs about 115 lbs...j