Chris Bott - Moderator Posted November 5, 2019 Share Posted November 5, 2019 Just wondering? Does an RC hot air balloon weigh over 250g? It doesn't when ready for flight but may well do when not inflated. Discuss. Quote Link to comment Share on other sites More sharing options...
Phil Green Posted November 5, 2019 Share Posted November 5, 2019 As the regs use the word 'weight' instead of 'mass'... go fly a huge R/C balloon perfectly legally! Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted November 5, 2019 Share Posted November 5, 2019 Going up it will certainly weigh less than 250g but coming down it may weigh more Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted November 5, 2019 Share Posted November 5, 2019 I think this question belongs in the same category as "If I attach a piece of string to my drone is it a kite/control line model" Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted November 5, 2019 Share Posted November 5, 2019 Imagine in the future say around the 5th of November, a Skyrocket firework 'accidentally' brings down a Amazon delivery will it mean registration and a online exam for home fireworks? I understand yearly firework accidents injure hundreds each year! Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted November 5, 2019 Share Posted November 5, 2019 This does raise an interesting point. If I am not flying my model plane the regulations don't apply. If I am flying my plane how do I know what it "weighs". As soon as I land and can weigh it the regulations cease to apply. An interesting conundrum. Quote Link to comment Share on other sites More sharing options...
John Stainforth Posted November 5, 2019 Share Posted November 5, 2019 Shaun, No conundrum. Your model plane in the air weighs essentially the same (mass times gravitational acceleration) as on the ground. Quote Link to comment Share on other sites More sharing options...
Dad_flyer Posted November 5, 2019 Share Posted November 5, 2019 ... but if you did manage to put it on the scales in flight, there would be no force on the scales as the lift cancels the gravitational pull. Unless you are pulling up at the bottom of a big loop... Quote Link to comment Share on other sites More sharing options...
Former Member Posted November 5, 2019 Share Posted November 5, 2019 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted November 6, 2019 Share Posted November 6, 2019 this thread reminds me of which is the heavier.....a ton of iron or a ton of feathers..? ken anderson...ne..1...feathers dept. Quote Link to comment Share on other sites More sharing options...
Gary Manuel Posted November 6, 2019 Share Posted November 6, 2019 Posted by Dad_flyer on 05/11/2019 19:22:16: ... but if you did manage to put it on the scales in flight, there would be no force on the scales as the lift cancels the gravitational pull. Unless you are pulling up at the bottom of a big loop... Same could be said of any aircraft - otherwise it wouldn't fly. Quote Link to comment Share on other sites More sharing options...
Phil Green Posted November 6, 2019 Share Posted November 6, 2019 sorry Steve, you're right of course but I'd just been reading the CAA's own 'Consumer Registration' page... Quote Link to comment Share on other sites More sharing options...
Former Member Posted November 7, 2019 Share Posted November 7, 2019 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Piers Bowlan Posted November 8, 2019 Share Posted November 8, 2019 I expect it says 'mass' in the Air Navigation Order, (legal document) but I can't be bothered to look. Quote Link to comment Share on other sites More sharing options...
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