Now, he’s built a model powered by a supercapacitor for a ... 17 volts when cranked at a reasonable speed. Hooked up to the toy plane, his hand-crank generator was able to fully charge the ...

The couple, from Hastings, East Sussex, had collected model planes and toy cars, some from the 1930s, for more than 30 years. Ms Stone Wisdom’s friend, Olga Mamonova, artistic director of the ...