I am not sure what bands you want to operate on, but a doublet at 90 feet makes a killer antenna for 160 and 75 meters, and one at 45 feet makes a damn good antenna for the upper HF bands. A compressed air launcher will get the antenna wires up in the trees with ease.
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I experimented with a black powder charge for this, but ended up just blowing off the branch I wanted to put an antenna across
You can also climb trees to put up antennas: https://nicecrew.tv/w/w7Z4TCgqYz6gPALk1pWoBQ
