u/frakkintoaster7

I was thinking about this the other day. Going back in time with an advanced piece of kit to try and invent early might not actually work if the production techniques are impossible to duplicate in that time period. With the D-day anniversary happening recently it got me wondering, Lets say you were a skilled military designer and engineer and were transported to the second world war.

​

You want to help the allies with your knowledge of future tech and create better armaments but the actual means of production for a lot of alloys, electronics etc doesnt and cant be created yet. So what devices could you "invent" early that dont involve a new technology or material but that use an existing one in a different way.

​

One example that comes to mind would be things like aircraft wing shapes, knowing what shapes work for different speeds and altitudes that dont require a new metal etc. That otherwise were discovered until later after more testing.