Originally Posted by
B744IRE
For less than $1500 a GA pilot can buy a portable EFIS giving GPS Artificial Horizon, GPS Groundspeed, GPS Vertical Speed and GPS Track with a 4 hour rechargeable battery.
Yet new commercial aircraft are still produced with standby instruments fed from a pitot-static system and a standby compass with a compass card...WHY?
All of the accidents over the years caused by blocked or faulty pitot probes/static source/instruments could have been prevented by GPS instruments totally independent of any aircraft system.
Instead of one standby instrument(s) on the Captain's side, each pilot could have standby instruments for minimal cost.
You understand that the current prevailing understanding of the accident is that a trim system on the airplane was introducing pitch changes that the pilots weren't able to overcome, right? Rhetorical question, it seems not.