Example. Launching off 3000ft hillside and flying downwards in valley. To about 1000 ft elevation etc. Thx. AL
Not sure I see the flying itself here as a rule breaker - flying from the top of a hill is fine, as would be then flying down the hill as long as the RPA is lower than 400ft AGL at all times - I think that can be achieved by flying close to the hillside.apart from it being a rule breaker,its a good way to put your drone on a one way mission never to be seen again
that's the issue flying close to the hillside, the first problem would be the updraft, and keeping a good signal between the controller and drone ,we are talking about a MM,which would struggle in the scenario as stated by the OPNot sure I see the flying itself here as a rule breaker - flying from the top of a hill is fine, as would be then flying down the hill as long as the RPA is lower than 400ft AGL at all times - I think that can be achieved by flying close to the hillside.
I can see that the VLOS might be hard to maintain in that situation, though there are others where it would be perfectly possible for a distance (though still unlikely to be 2000ft from where you’re standing at the top) - I’m thinking of an English fellside, where the scree falls down the slope and there aren’t any outcrops to get in the way.
RTH is of course going to be a problem as, if set at a legal 200ft AGL when taking off at the top of the hill (ie 3200ft MSL), ascending to that before returning to home will take the RPA way over a 400ft AGL limit lower down.