1) Aircraft configuration 2) Russian invention
Found on
https://www.crosswordclues.com/clue/jet-pack
Jet pack, rocket belt, rocket pack and similar names are used for various types of devices, usually worn on the back, that are propelled by jets of escaping gases (or in some cases water) to let a single user propel themselves into the air or fly. The concept emerged from science fiction in the 1920s and became popular in the 1960s as the technolo...
Found on
http://en.wikipedia.org/wiki/Jet_pack
No exact match found.
