4 ms·
Not silly at all but quite practical. How do you propose they could have easily measured true airspeed and true altitude before GPS?
by perilunar 5y ago
Not silly at all but quite practical. How do you propose they could have easily measured true airspeed and true altitude before GPS?
- namibj 5y agoTAS doesn't need GPS. Ground speed does, but for (near) transonic operation, IAS alone isn't sufficient. A Mach meter can be enough of an addition, though.
- travisjungroth 5y agoGPS doesn’t help you with TAS at all. TAS indicators existed before GPS. They take IAS and do the same calculation you would to get TAS.
- na85 5y agoWith a rock tied to the end of a rope of course.