Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
True altitude is "[t]he height of an aircraft as measured from mean sea level."
- ↑ NATO Intelligence, Surveillance, and Reconnaissance (ISR) Interoperability Architecture (NIIA), Vol. 4: NIIA Terms and Definitions A-6 (Sept. 2005) (full-text).