It made me laugh when they started fantasising on French radio and TV about infantry being issued with these.
What is not clear in the video is that the five model aircraft turbines used on the board, collectively make a noise like a 707 used to before airports were told to keep quiet or else…
He usually flys for 5 minutes and for that uses 20 litres of kerosene, so for 10 minutes, it will be 40 litres of kerosene – “Now listen here, I need a squad of volunteers to go into battle with a very noisy jet strapped to your feet and an extra 40 litres of kerosene (about 35kg I think) strapped to your person along with your normal battle kit. You, you, you, and you, have volunteered! Dismiss.”