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Altimeter vs. GPS Altitude in Aviation

Pilot Institute

There is also a difference between Altimeter vs. GPS altitude, and there are some important differences to cover. Altimeters measure pressure altitude above a given datum and have to be calibrated to be accurate. Key Takeaways Altimeters use air pressure and need calibration to show accurate altitude. And herein lies the rub.

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Flying Broke

Plane and Pilot

Some things are mandated for any airplane, like an airspeed indicator, altimeter and compass. If you’re going into Class B airspace, the ADS-B Out has to be working; if staying outside the 30-mile veil, it doesn’texcept for FAR 91.215(c) , which says if your transponder equipment is operable, it has to be on.

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This 2006 Lancair Columbia 400 Is a Modern, Composite, Uncommon ‘AircraftForSale’ Top Pick

Flying Magazine

Its IFR panel features Garmin G1000 avionics, including dual GIA 63 GPS/nav/coms, GCU 476 keypad controller, Garmin GDL 69A XM satellite weather and radio data link, active traffic, GTX 345R-W WAAS ADS-B In and Out transponder with weather and traffic, GMA 1347 digital audio panel, Garmin GFC 700 autopilot with flight director and four-way electric (..)

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AVIATES Acronym Explained

Pilot Institute

T – Transponder Check Your transponder, which helps air traffic control see your airplane on radar, needs to be inspected every 24 months. S – Static System and Altimeter Check Pilots flying under IFR need their static system and altimeter inspected every 24 months. Why Is AVIATES Important?

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Ten Types of Aviation Maintenance Checks

Northstar VFR

A: ALTIMETER/PILOT STATIC INSPECTION (FAR 91.411) If flying under IFR, an aircraft’s static system, altimeter and automatic Mode C altitude-reporting system must be inspected within the preceding 24 calendar months. One major difference is that any A&P technician can endorse the inspection.

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Daher Aircraft’s continual improvement strategy brings new avionics and systems enhancements to its Kodiak product line in 2025

Professional Pilot

The Avionics One package for the Kodiak 900 and Kodiak Series III has the following new options in 2025: Garmins all-digital GWX 8000 StormOptix doppler weather radar, with volumetric scanning and automatic threat analysis; the all-digital GRA55 radar altimeter with state-of-the-art digital signal processing technology for increased accuracy; and the (..)

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Game On!

Plane and Pilot

A steam gauge airspeed indicator, Garmin G3X, autopilot, Garmin G5, transponder, fuel selector, accelerometer, and steam gauge altimeter were centered directly in front of me. Throttle, prop, mixture, recognition lights (the GameBird is day VFR only), and trim were on the left side of the cockpit.

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