Attaching two airplanes together and adding a jet engine - video

The Yak-100, created by attaching two Yak-55s together, and adding a jet engine. 3:35 video:

https://www.youtube.com/watch?v=nWtOQ2nxDtE

Previously:

https://www.homemadetools.net/forum/...1532#post74610
https://www.homemadetools.net/forum/...935#post124868
https://www.homemadetools.net/forum/...447#post127559

The US military had a similar idea...
https://www.youtube.com/watch?v=WQP0IHH3FTs

Як-55*2= як-110. :)