The DX Commander with a Roly Coil makes a 80M Vertical Antenna that's just 9.5Metres tall.
A base loaded DX Commander for use on 40/80M bands, with the use of the 40M element. The coil gives a very low angle of takeoff making it great for DX, add more taps for more bands greater flexibility...

Thanks and acknowledgement to Roly - ZL1BQD for all his help.

Coil: 50 turns 5mm apart on a 54mm OSD plastic pipe. tapped at turns 4,6 and 8 some additional tuning maybe needed. I used 1.5mm enamel coated copper wire about 8.5M long.

Cheers
Mike M0MSN