RPN Calc 與 Artificial Horizon 使用情況與統計

A simple reverse polish notation calculator loosely based on my trusty HP-32SII that runs on iPhone, iPad, and Apple Watch! If you are familiar with HP RPN calculators, the operation of this calculator should seem very straightforward - albeit simplified. It can't be programmed, and it doesn't handle binary, or hexadecimal numbers. But, it has a clean, simple interface with large, easy to press buttons. It has all of the functions required for quick calculations when your iPhone is handier than your computer or calculator. And, remember those cool calculator watches from the 1980s? Unfortunately, none of them were RPN. RPN Calc brings a reverse polish notation watch calculator to the Apple Watch! In addition to the standard RPN Calculator app that runs on iPhone, iPad, and Apple Watch, RPN Calc includes a handy micro RPN Calc Today Extension available for convenient access to quick calculations from the pull down Today screen.

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Artificial Horizon

Main features: - Artificial Horizon (actual pitch, roll) - Altimeter (QNH/FL) - ground speed - GPS coordinates - compass with yaw correction and optional desired heading Flight Tracker: - track flight paths (speed and altitude) - visualize multiple flight paths WIKIPEDIA: [...]The Artificial Horizon is a flight instrument that informs the pilot of the aircraft orientation relative to Earth's horizon, and gives an immediate indication of the smallest orientation change. The miniature aircraft and horizon bar mimic the relationship of the aircraft relative to the actual horizon. It is a primary instrument for flight in instrument meteorological conditions. The essential components of the Artificial Horizon include a symbolic miniature aircraft mounted so that it appears to be flying relative to the horizon.[...] https://en.wikipedia.org/wiki/Attitude_indicator Use of 'Artificial Horizon' is not an FAA approved method of flight path navigation decisions. 'Artificial Horizon' NEVER replaces a pilot's decision. 'Artificial Horizon' can be used to support pilot training.