Originally posted by Racer X 69 Gorilla tape is the best.
I don't even buy regular duct tape any more.
At that airplane place I work at there is way more than a hundred kinds of tape. They got tape for everything. Riveting. Marking the plane. Marking the tool(s). Marking the floor. Clear tape. Colored tape. Paper tape. Plastic tape. Tape with words or phrases repeating endlessly. Two sided onionskin tape. Two sided duct (more like gorilla tape) tape. Duct (again, more like gorilla tape) tape made to match the final color of the plane (remember, every plane is custom built to the customer's spec, including color). Scotch tape. Packaging tape, Impact tape. Teflon tape (I used to get rolls of this at Boeing surplus before they closed it, great stuff. Used it on certain parts of my race car to lube custom suspension pivots I made, among other things.) A tool that prints words, symbols and numbers on a strip of tape to mark tools, lockers, doors, locations for everything, even the fridge, microwave, table and chairs in the break rooms. Metal (aluminum, way thicker than the foil in your kitchen) tape. Rolls of round aluminum foil discs in many different diameters. Rolls of tape with a pattern and the repeating logo of each program, 747, 767, 787, 777, etc. The quality assurance inspectors have special tape in special colors to mark defects and discrepancies. Masking tape, in blue (the most common), green, orange, yellow, black (Really? I never!) Several types of cellophane tape, in colors, transparent like the colored plastic gels used in photography, only just a few mils thick.
And when the keys to the shiny new plane are handed over to the customer, there is not one bit of tape anywhere on it.
But gorilla tape is the best.
Like the helicopter tape my dad used to bring home in his lunchbox when he was in the US Navy.
Only his stuff was OD green.
In 2004 I was in CDG looking out the window at the AF 320 I was on. Duct tape on the flaps at the back of the wing. And the AF guy was reading the instruction manual for how to load the baggage while loading the baggage on the flights. At least the 320 was flying to Blagnac so the factory could do factory approved fixes on the duct taped bits.
---------- Post added 05-20-16 at 05:14 AM ----------
Originally posted by Racer X 69 Fabric skin over a wood frame.
With dope.
Why do ya think they call it dope, anyway?
First, there are only two commercial airliners in production today that are (mostly) composite. The Airbus A380 and the Boeing 787. Soon the Boeing 777-9X will have composite wings.
Soon.
All of the other planes are mostly aluminum and titanium.
Highly specialized metal alloys, to be sure.
As for lightning strikes, well, adverse weather has always presented a threat to aircraft. But it wasn't until just before the Jet Age that the engineers developed methods to deal with lightning strikes in flight. There were a number of planes lost or severely damaged by lightning before measures to deal with strikes were developed.
Today's aircraft are built with systems to bond and ground the exterior and channel the enormous energy of lightning.
Have you seen the video of that. 747 out of Narita? Probably the occupants were unaware of the strike.
Planes are required to be rated for lightening strikes of 2000 Amps, 20 times the current of a small arc welder. Apparently there are some which suffered when stuck at 200,000 Amps. One of my students who retired from lightening protection for Boeing told me.
---------- Post added 05-20-16 at 05:27 AM ----------
Page 1776. Do you Americans recognise that number?