> The world speaks English. It's an illogical and absurdly spelled language.
Man, the extent the aviation world has to bend itself to avoid the pitfalls of English....
"to" and "two" sound alike, and so does "for" and "four".
"Turn left t(w)o four zero" or "Climb t(w)o eight thousand"
To avoid that, the lingo is:
"Turn left heading two four zero", "Climb and maintain two eight thousand" (or, "Climb flight level two eight zero").
At any rate, switching to metric would be much better (If I'm 2000 metre high, and I have a glide ratio of 1:10, I can glide 20,000 metre or 20 km. If you're 5000 feet high, and you have a glide ratio of 1:10, how many nautical miles can you glide?), but for the reasons you mentioned, it won't happen anytime soon.
Most of the digits sound distinct enough that they don't get confused- except "nine", which can sound like "five" over a bad radio link, and is therefore pronounced "niner".
Man, the extent the aviation world has to bend itself to avoid the pitfalls of English....
"to" and "two" sound alike, and so does "for" and "four".
"Turn left t(w)o four zero" or "Climb t(w)o eight thousand"
To avoid that, the lingo is:
"Turn left heading two four zero", "Climb and maintain two eight thousand" (or, "Climb flight level two eight zero").
At any rate, switching to metric would be much better (If I'm 2000 metre high, and I have a glide ratio of 1:10, I can glide 20,000 metre or 20 km. If you're 5000 feet high, and you have a glide ratio of 1:10, how many nautical miles can you glide?), but for the reasons you mentioned, it won't happen anytime soon.