Park Rapids Avionics Products
Aerosonic Instantaneous Vertical Speed Indicator
The Aerosonic Instantaneous Vertical Speed Indicator is a panel-mounted instrument that monitors atmospheric pressure variations to provide pilots with immediate rate-of-climb and rate-of-descent calculations. Unlike standard VSIs that suffer from a brief mechanical delay when a climb or descent is initiated, this unit utilizes an internal accelerometer mechanism to deliver instantaneous vertical velocity feedback. It features a high-contrast mechanical face with matte white indicators on a dull black background.
Description
This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 7/21/2026.
Key Technical Capabilities
- Instantaneous Inertial Lead: Incorporates internal, acceleration-actuated pistons that create an immediate pressure differential the moment the aircraft pitches. This mechanics removes the typical 2-to-3 second lag found in basic pneumatic rate-of-climb gauges.
- Logarithmic Dial Configuration: The dial face is graduated in high-resolution 100 feet-per-minute (fpm) increments from 0 up to 1,000 feet, shifting to wider 500 fpm increments from 1,000 out to a maximum display limit of 6,000 fpm.
- Integrated Panel Lighting Options: Equipped with internal instrument lighting configurations tailored for corporate flight decks. When integrated into aircraft like the Cessna Citation, it utilizes standard 5 VAC cockpit illumination loops.
- Hermetically Sealed Casing: Built inside a rugged, airtight aluminum cylinder housing with a static pressure port connector mounted on the rear casing, preventing cabin pressure fluctuations from interfering with accurate core readings.
- Standard Instrument Panel Footprint: Formulated as a direct replacement unit meant for standard 3-1/8 inch cockpit panel cutouts, featuring a manual zero-adjustment calibration screw positioned on the lower left bezel.
Additional information
| Part Number | 30260-1117 |
|---|---|
| Serial Number | W15679H |
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