4 ms·
Almost the entire world still uses nautical miles, knots (speed), and feet for aircraft altitude. I'm pretty sure most airplanes all use AN hydraulic fittings,
by swimfar 6y ago
Almost the entire world still uses nautical miles, knots (speed), and feet for aircraft altitude. I'm pretty sure most airplanes all use AN hydraulic fittings, which are based on Imperial sizes (correct me if I'm wrong there).
Also, people always say that the US is the only country that uses feet, pounds, miles, etc. But there are a lot of other countries that still use those units, or at least understand them, even if it's not an official unit. I even work with engineers from China who use and understand Imperial units. I also visited a friend in Ireland who had a (pre-digital) scale that measured weight in stones.
- GuB-42 6y agoLiving in France, general aviation is a bit of a mess. - Light aircraft use nautical units. - Ultralight use metric for speed and distance but feet for altitude and vertical speed - Gliders use metric - Charts use feet for altitude. Aviation authorities define airspace using nautical units but ground authorities use metric for things like fly over altitudes. All converted to feet in charts but the legal text use meters. - AFAIK, mechanical parts for non-US built aircraft are metric. Pipe fittings have always been in inches for some reason, but commonly converted to metric (1/4in is written as 6.35mm).
- fmajid 6y agoIn France the Air Force uses feet for altitude due to NATO STANAG, and the ALAT (Army helicopter corps) uses meters.