Seen here with its stable-mate is a Polish made Dromader spray plane on the spruce bud worm campaign. These things were all the rage in the 1980s but fell out of favor later on. They only have a 6000 hour airframe life (extendable to 10K with conditions) which may be the reason.

This photo is copyright © Tim Martin, and may not be used or published in any way without permission.

It was added on 26 November 2019, and has since been viewed 175 times.