I'm technically qualified to be an Air Force mechanic.
I can use both duct tape and zipties.
And I am not even slightly exaggerating when I say that one of my friends is an RAF mechanic. He works on the jet fighters, top models, expensive jets. And the stories I hear about whats held on with duct tape is terrifying.
Dammit, when one of the Hercules planes had a hole fall out the side in flight, they fixed it with duct tape and a teapot.