It is interesting to see how the 50ies and 60ies were a time, where a lot of aircraft were designed, which are still flying to day, including the 747. The techn

It is interesting to see how the 50ies and 60ies were a time, where a lot of aircraft were designed, which are still flying to day, including the 747. The technology had become just good enough to come up with long-lasting designs. One major role though has the fact, that airplane development is quite costy, especially certification of new aircrafts and their components. That is why most engines lag quite far behind automotive designs. There might be an interesting time coming up though, as aviation is looking into eletrification. There are already some electric airplanes available, and this is going to stir up the industry a lot. This usually means completely new designed aircraft, so companies can start with a clean sheat. Also, the expensive maintenance of the engines is radically reduced.