<<what sort of life expectancy does the hinge have?>>
Yes Denys, they are just thin plastic hinges, but I wound one back and forth
a hundred times and it didn t fall off. Even if you derig (or look in) every
flight, that's long enough. If it breaks is not disastrous, and they cost
literally nothing, if you or your kids like orange juice. Come to think of
it, the snap action keeps it in even if the hinge is removed , though you
might drop it in the grass then.
!
Put them in with impact adhesive rather than epoxy, and renewing is easy if
needed..
Graham C.
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