The airline hangar in Fort Worth that flipped my opinion on composite repair

Honestly, I used to swear by metal patches for everything. Then I watched a senior tech fix a carbon fiber fairing with a vacuum bag setup on a 737 in Fort Worth, and it held up perfect through a full inspection cycle. Ngl, I thought composites were overhyped until I saw him do the whole cure in under 90 minutes. Any of you guys carry a portable heat blanket for field repairs, or is that just overkill for most shops?

2 comments

2 Comments

sandra_anderson222d ago

Did you see how clean that bag laid down over the curve? I had the same flip moment last year. My shop does mostly Gulfstream work, and we picked up a secondhand hot bonder just for these jobs. Took a few tries to get the ramp rate right, but now we do most fairings and radomes in house instead of sending them out. A portable blanket is worth it if you do more than one repair a month, otherwise it's just another thing to calibrate.

hannahs4521d ago

Hold up, I'm gonna push back on this whole composite love fest. Metal patches have decades of proven data behind them, and a 90 minute cure still makes me nervous when I think about what happens if that blanket fails mid-flight. Portable heat blankets are a liability unless you got a dedicated thermocouple setup and someone who checks the readings every single minute, most shops aint got that manpower. Composites are great for OEM factories with controlled environments, but field repairs on a dirty hangar floor with humidity swings, nah thats how you get invisible delamination that pops up a year later. Plus the tooling cost for vacuum bags and hot bonders eats any labor savings unless you're doing these repairs weekly. Stick with what works and what you can visually inspect, not what looks cool in a demo video.