Newark777 From United States, joined Dec 2004, 8796 posts, RR: 41 Posted (3 years 10 months 3 weeks 4 days 13 hours ago) and read 8545 times:
Could anyone explain what exactly is going on in this picture? Is this guy actually duct taping the covering of the engine pylon? Funny picture either way.
Wingscrubber From United Kingdom, joined Sep 2001, 495 posts, RR: 0 Reply 1, posted (3 years 10 months 3 weeks 4 days 13 hours ago) and read 8550 times:
You mean you didn't know engines are held on with duct tape?
Um, I'm guessing it's 'special' duct tape?
474218 From United States, joined Oct 2005, 3757 posts, RR: 1 Reply 2, posted (3 years 10 months 3 weeks 4 days 13 hours ago) and read 8555 times:
Its aluminized (aluminum) tape also known as speed tape or 600 mph tape. The sheet metal mans friend. Been used for years. This guy appears to be using it to seal up a pylon.
Matt72033 From United Kingdom (England), joined May 2005, 1617 posts, RR: 6 Reply 3, posted (3 years 10 months 3 weeks 4 days 13 hours ago) and read 8543 times:
Matt72033 From United Kingdom (England), joined May 2005, 1617 posts, RR: 6 Reply 4, posted (3 years 10 months 3 weeks 4 days 13 hours ago) and read 8533 times:
grrrr u beat me! lol......should have radiused corners really shouldnt it?
SlamClick From United States, joined Nov 2003, 9996 posts, RR: 79 Reply 6, posted (3 years 10 months 3 weeks 4 days 12 hours ago) and read 8520 times:
I remember this stuff as far back as patching bulletholes in helicopter rotor blades. The trick there was you had to start at the trailing edge, wrap it around the leading edge and back to the trailing edge, covering both entry and exit holes. Then you had to put a piece of tape the same length - and therefore the same weight at the identical station on the opposite blade for balance purposes.
This was only a valid repair for honeycomb construction blades as they should lose no mass and weight when a bullet passes through them.
This is only partly tongue-in-cheek.
I've seen it on many a leading edge on wing or tail. If you wanted to search the photos here it probably shows up in a few wing or tail closeups.
Happiness is not seeing another trite Ste. Maarten photo all week long.
Dougloid From , joined Dec 1969, posts, RR: Reply 9, posted (3 years 10 months 3 weeks 4 days 12 hours ago) and read 8456 times:
When I was working at Douglas there were a few incidents of underwing doors being lost, mostly because the latches were not adjusted properly. When the aircraft was in a high angle of attack with the slats deployed, the negative pressure was enough to suck the door open and rip it off.
After one incident of this type on a Delta MD11, a door was replaced but instead of adjusting it properly the engineer recommended the use of aluminum speed tape to "seal it up" so they could go on another test flight.
Sure enough it sucked that door off as well. What happened the the engineer? Probably got a promotion and a bonus.
EMBQA From United States, joined Oct 2003, 8411 posts, RR: 19 Reply 10, posted (3 years 10 months 3 weeks 4 days 11 hours ago) and read 8429 times:
Quoting 2H4 (Reply 8): Found some examples in the DB:
In the first picture.. The panel he is protecting has an eroded edge and the tape will protect it from continuing to peel up and also protect it from moisture.. which for composites is a very-very bad thing
On the Airbus A340 it's covering some test wiring. VERY common on flight test aircraft.
On the USAirways 767 my guess would be covering edge composite damage to prevent moisture ingress, a very bad thing...and the tape, a VERY common short term fix.
On the Embraer 170.... Hump Seal Repair..!! The sealant used is dry to the touch, but must be protected to fly. I think the AMM allows 3 or 4 days like that until the tape must be removed.
In my 10 years I've fixed dozens and dozens of aircraft this way... fully legal and right in the FAA approved manuals..!!
"It's not the size of the dog in the fight, but the size of the fight in the dog"
Newark777 From United States, joined Dec 2004, 8796 posts, RR: 41 Reply 11, posted (3 years 10 months 3 weeks 4 days 10 hours ago) and read 8393 times:
Thanks for all the info, learn something new every day!
Sfomb67 From United States, joined Dec 2005, 403 posts, RR: 0 Reply 14, posted (3 years 10 months 3 weeks 4 days 1 hour ago) and read 8172 times:
Although the tape in this pix is 600 MPH foil tape. Gray tape known as "duct" tape is "pit" tape when you enter aviation. I still call it pit tape at home, and everyone says "What?"
777 From Italy, joined Sep 2005, 325 posts, RR: 0 Reply 15, posted (3 years 10 months 3 weeks 3 days 21 hours ago) and read 8131 times:
Quoting DColeMAN (Reply 12): Looks abit worrying, but if the FAA approve it then it can't be that bad...
Exactly! As far as I know it has been used since 30+ years to do quick repairs waiting for the standard ones...
Quoting SlamClick (Reply 6): I remember this stuff as far back as patching bulletholes in helicopter rotor blades. The trick there was you had to start at the trailing edge, wrap it around the leading edge and back to the trailing edge, covering both entry and exit holes. Then you had to put a piece of tape the same length - and therefore the same weight at the identical station on the opposite blade for balance purposes.
This was only a valid repair for honeycomb construction blades as they should lose no mass and weight when a bullet passes through them.
Hi SlamClick,
I found your contribution quite impressive, but I have a question for you:
since my father has been a Sea King copter pilot for decades, sometime I was used to go with him while he was performing the pre-flight check on the copter.
Each time I was so excited… the best part was when my father asked me to climb whit him to the inspection footboard near the main rotor…
During one of those pre-check I remember that, looking at the join between the main rotor and each blade there was a sort of “pressure indicator” subject to accurate check by the pilot before each flight.
If I remember well (at that time I was only 10-12 years old), he told me that this indicator it’s so important to be checked because, in case of loss of internal pressure due to an hole (for instance), your blade will stall and you will crash… Now I’m quite sure that the blades of the Sea King are made with honeycomb construction, so I’m a bit confused…
Maybe the Sea King has a different system or maybe my memory it’s wrong… what’s your opinion?
Buzz From United States, joined Nov 1999, 691 posts, RR: 29 Reply 18, posted (3 years 10 months 3 weeks 2 days 14 hours ago) and read 7895 times:
Hi 777, Buzz here. Funny, i was a about 10 or 12 when my Dad was flying SH-3A's ... those Sea King helos. I used to read the NATOPS manuals for fun (Maybe that's how i became plane-crazy?)
I recall that was called the "BIM Blade Indicator", it had black and white stripes if the pressure in the blade was good, all white if it had leaked. So if there was a crack in the blade, the pressure would leak down and somebody would notice before the blade came apart.
Speed Tape... 600 mph tape.... vibration dampening tape: it's useful stuff for covering joints where you've sealed a panel on a cool night - the sealant won't set up when it's less than 50 degrees.
We also have Cargo Pit Tape, which is a heavy duty, flame resistant form of duct tape. You can't tear it with your fingers, have to use a knife. It's not aluminum like Speed tape.
g'day
before that date he was flying SH-34 and AB-204...
Quoting Buzz (Reply 18): I recall that was called the "BIM Blade Indicator", it had black and white stripes if the pressure in the blade was good, all white if it had leaked. So if there was a crack in the blade, the pressure would leak down and somebody would notice before the blade came apart.
Yes, you should press a botton and wait the appearance of the black stripes!
YYZYYT From Canada, joined Apr 2005, 645 posts, RR: 0 Reply 21, posted (3 years 10 months 3 weeks 1 day 10 hours ago) and read 7691 times:
Quoting Newark777 (Thread starter): Could anyone explain what exactly is going on in this picture? Is this guy actually duct taping the covering of the engine pylon? Funny picture either way.
NO!
It's a Gremlin... and look, he's tearing the engine duct tape apart!
YYZYYT
PS What do you mean you can't see him? He's right there!
Erj-145mech From United States, joined Oct 2001, 306 posts, RR: 1 Reply 22, posted (3 years 10 months 2 weeks 5 days 14 hours ago) and read 6834 times:
Quoting EMBQA (Reply 10): On the Embraer 170.... Hump Seal Repair..!! The sealant used is dry to the touch, but must be protected to fly. I think the AMM allows 3 or 4 days like that until the tape must be removed.
One hundred and fifty calendar hours on the DMI for hump sealant cure time.
L-188 From United States, joined Jul 1999, 28604 posts, RR: 73 Reply 25, posted (3 years 10 months 2 weeks 5 days 2 hours ago) and read 6709 times:
There have been more then one light plane in Alaska brought out of the bush, with more duct tape then fabric because a Moose, Bear, or brush took a liking to the airplane.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
26 HAWK21M: Normal time by the watch. BTW why the term Sam Hill. regds MEL
27 JarheadK5: I've heard duct tape (the regular, cloth, hardware-store variety) called a lot of things over the years... but never "pit tape". Interesting... That
28 Amtrosie: Actually there is more involved. As has been pointed out "speed tape" is an aluminum foil tape that is very strong, and will slice your finger to the
29 Sfomb67: "Pit tape" is used to tape the seams of the Fiberglas panels used to line the walls and ceiling of the cargo pits. Also used to repair small tears in
30 MD-90: Legend in Alabama has it that it's a location in hell. Also, our bandroom at my high school was located on Sam hill. Our director even had a custom S
31 HAWK21M: Out here the terms used are very Different.Thanks regds MEL
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