Sat Jan 22, 2022 8:01 pm
#1895058
Dusty_B wrote:See NCO.IDE.A.195
GrahamB
Sent from my high horse not using Tapatalk
Sent from my high horse not using Tapatalk
Dusty_B wrote:See NCO.IDE.A.195
GrahamB wrote:flyer5 wrote: the law is strangely silent on making up your own approaches, so making one up that closely follows a surveyed and properly designed track and profile is probably safer than one to your home strip in the back of beyond.
rdfb wrote:let's say that the probability of it being wrong is 1 in 10000.
flyer5 wrote:I've never seen my tablets or phones report incorrect positions. ( How many time does your car satnav tell you to turn left now when you aren't at the junction?) Decades ago I can remember a steam GPS 'stopping' but you'd notice that. Making an approach I can't imagine how you wouldn't detect the GPS was having trouble.
Flyin'Dutch' wrote:@flyer5
IFR approved GPS receivers do constellations checks etc, and indicate when the signal is degraded and cannot be used.
When its battery got low it went into fly-home mode and automatically went back to the point of take-off.
flyer5 wrote:I was watching a YouTube review of a drone. Fantastic thing. Did 60 mph, would stop if it came to an obstacle and would avoid hitting the ground. When its battery got low it went into fly-home mode and automatically went back to the point of take-off. Of course it was relying on GPS so didn't quite hit the same spot. It was four feet off!!. Personally I'd take that anyday. The film was in Hawaii which I don't supposed is especially well served by satellites but it was pulling in 24!*
* well that's what the tester reported. Seems unbelievable to me. Perhaps you can pick up three constellations?
cotterpot wrote:When its battery got low it went into fly-home mode and automatically went back to the point of take-off.
So flying in a straight - ish line it could never use more than 50% of the battery it is carrying?
PeteSpencer wrote:Nobody's mentioned RAIM