What would Hot De-icing fluid do to that?

Is it possible that wringles, in the other direction (parallel to the airflow), could appear in flight if the wing flexes too much ?
If the wing flexes up, there is less distance to travel but the speed tape is glued, so the speed tape surplus (in distance) has to go up.. and make a wrinkle.
It could be uneven parallel wrinkles, but even then it would probably be a lesser disturbance than perpendicular wrinkles !

​​​​​​Not a lot. The stuff is blasted by 200 to 300 knot rain or hail if flying up and down from the cruise. Let us just say that the engineers that stuck that tape down say a lot for the culture of the place they are from. A young cat techie saw such on a trip there in GW1. It is published in a Dave Gledhill book as well. Bernie's reply "You probably are!" Fits that picture so well.

It has been applied by a sh*te metal worker!" I would be embarrassed to apply anything to an aircraft like that! It is gash.

Epoxy primers are more flexible than composite structures I would hope. Then again if it is BMS 10-11 type primer, only the primer used of the Pumas was worse (the stuff that dissolved with the slightest touch of MEK). One would have thought the fatigue testing would have shown this problem up quickly in development.

Roger Victor has it sorted,

https://cimg3.ibsrv.net/gimg/pprune....973d3cd69c.jpg

Someone had some standards,

https://i.redd.it/qfqmbapgoqv51.jpg

Are we sure it's speed tape? It looks more like duct tape.

It doesn’t look good! Probably best to take it out of service now. Get it repainted soonest! I wouldn’t feel comfortable flying on it like that. 🤔😬👀

Fully concur. As SLF I would find that sight very disconcerting.

It's still attached to the wing - it's speed tape.

I think he means the car has duct tape.

Much better job on the car than the other examples.

Actually I was referring to the 787 wing. Last time I handled speed tape it was bright silver (which is why we called it "Instant Airframe"). The stuff on the 787 looks to be grey and plastic. Is there another type of speed tape with which I am unfamiliar?

I thought so too, it's very hard to tell, but I'm suspicious that it's "duct tape" not aluminum speed tape. In any case, I suspect that it's laid the wrong way, the faying edges appear to be at the forward, rather than the rear edge of the spanwise tape. A small area can be seen to be opening up on a pocket of air already. That, and the wrinkles cause me to wonder about the compliance of the "repair" to acceptable data.

For the work required to apply all that tape, I would wonder if it would not have been as easy to apply the correct paint, even temporarily with a roller!

I'm rather surprised that no one has put up the well-known Bear Chews up Plane, Duct Tape Repair pic yet . . . . if it gets you home!

Except that previous posts suggest the tape has been on for 30± days, That's not just getting you home.....

The legal Boeing.com authorised repairs will have life of 1000's of flying hours. If applied properly. ETDs are similar.

No allowance from Boeing to do such a thing. Although I am led to believe something might be in the offing as they just can't get them through the paint facility.

Am surprised its getting everyone's knickers in a twist so much tbh. Has it been applied well? No. But it's just a protective uv screen it's doing nothing else. Granted it looks horrendous and maybe they could come up with a white alternative but The reinspection intervals are long. That shows how concerned Boeing are about it.

I'd imagine there aren't many 787s flying that dont have any speed tape either on the wings or on other paint blemishes or lightning strikes. The biggest problem is you can't just touch them up like an alloy structure, and generally can't be done on the line due to cure times and temperature requirements.

Thing is, if they were patches of ice/frost on the wing of exactly the same dimensions, people would be going nuts if it took off without deicing. There must be a limit to the amount of speed tape you can apply before the manufacturer says enough!? Maybe each patch had separate approval and they had no idea that the whole aircraft was going to look like The Mummy (or Moon Knight...)?