June 5, 2020 at 6:45 pm

I found what I believe could be a piece of aircraft skin on a WW2 Airfield, but I’m curious to know what would of made those serrated edges?
By: bazv - 7th June 2020 at 15:10
It is a very useful/easy way of facilitating Airframe Repairs,although one has to be careful not to drill through Frames/Ribs/Structure ?.
By: NewQldSpitty - 7th June 2020 at 10:56
Good for odd shaped cutouts as well.Does involve large amounts of filing and sanding though..
By: Wyvernfan - 5th June 2020 at 20:43
Thank you gentlemen!
By: bazv - 5th June 2020 at 20:18
Yes chain drilled Rob as posted above.
It is a standard way of cutting access holes etc in a/c skins.
By: Arabella-Cox - 5th June 2020 at 19:32
Yep, drilled to cut and remove. Avoids those crinkle edges.
By: myford - 5th June 2020 at 19:21
Looks like it’s been chain drilled to me.