May be ok at an airshow or carried with ya while hangin' around an airfield..but with no ability to scan, search, and more importantly I saw no mention of a squelch control, so would make for a long day of listening to "hiss".
An older, cheap vhf handheld scanner would make much more sense. I have several old uniden SC150's and Pro 94's etc that work very well aircraft band-wise. Add a decent antenna, (rather than the "rubber duck") and you've got a pretty good setup at usually less than the Kaito price. 'Nuther good reason.
Just my 2 cents..but works for me!