This makes them ideal for fox hunt or ARDF hand-held sniffers. Other applications include range boosters for handheld transceivers, contest beams for VHF/UHF field days and use for satellite communication. They also make a great educational project to demonstrate antenna concepts like gain and front to back ratio for an amateur licence study class.
Follow the links below for ideas and inspiration:
KB9VBR tape measure yagi for 2m foxhunting
KB9VBR tape measure yagi for 2m foxhunting (video)
WB2HOL tape measure yagi optimised for 2m direction finding
ZL2APS tape measure yagi for 70cm
Testing a 2m tape measure yagi One of my videos testing reception of a satellite
The main disadvantage of tape measure yagis (especially those on 2m) is that in moderate to high winds their elements flex. This reduces their gain and directivity, and, when it's really blowing, makes them useless. You may be able to reduce this by fitting some sort of line or string across the elements for bracing.