Hi
Here is a short clip from You Tube showing a 1950s one-man US Army Flying Platform. It would look great flying over a Lunar or Martian landscape with an Astronaut at the controls. There is also a tiny, one-man helicopter. Neither is for me - you are basically hanging in mid-air, with no structure around you.
Not sure if either of these have been kitted, but in 1961 ITC released a kit of the much larger, three-man Piasecki VZ-8P Aerial Jeep, or Airgeep, in 1/35th scale. This was re-issued by Glencoe Models in 1990. Again, it would look great in a space setting, exploring alien worlds, or even being flown by aliens on Earth.
Flying Platform mid 1950s - YouTube
Paul Adams from New Zealand