News Highlights

Published: May. 30, 2025 at 05:16 AM EST
Updated: Jun. 2, 2025 at 11:42 AM EST

Holy Micro! LLC (holymicro.com), well-known for its innovative voice-enabled AGL altimeters and alert systems—such as the SkyVoice Alert 500 and SkyVoice Glassy Guide 400 (nicknamed “Bitching Betty” or “Barking Bob” by pilots)—has received FAA certification for its latest breakthrough: the Absolute AoA system.

After a successful debut at SUN 'n FUN Aerospace Expo, where it received strong acclaim from aviation professionals, the Absolute AoA will now be available at EAA AirVenture Oshkosh 2025, at Hangar C, Booths 3149 & 3150, bringing this cutting-edge solution to a wider audience.

Why Absolute AoA Is a Standout Innovation

At the core of the Absolute AoA is an advanced multi-sensor normalized pressure ratio system, representing a major leap beyond legacy single-sensor differential pressure technologies. This state-of-the-art method provides accurate, real-time angle-of-attack readings across all flight phases and includes automated flap position detection for greater reliability.

In its SAIB 2024-07 bulletin, the FAA highlights how AoA systems enhance situational awareness and help prevent stalls and loss-of-control (LOC) events. Absolute AoA directly supports these safety goals with a dependable, easy-to-use system that equips pilots with clear, actionable information.
The Problem with Traditional AoA Systems

Older AoA indicators—relying on a single pressure sensor—are often limited in scope, primarily functioning during slow-speed, high-AoA flight conditions already covered by onboard stall warning systems. These systems can also be challenging to install and maintain due to calibration demands, drainage and heating needs, and added pilot training.

Since most aircraft already include stall warnings, many pilots question the need for an AoA system with such limited range. Existing solutions typically lack flexibility, and the absence of standard display formats can reduce usability.

In contrast, the Absolute AoA offers comprehensive, real-time data during takeoff, climb, cruise, descent, and landing—providing value far beyond stall protection, and greatly improving overall flight performance and confidence. 
Precision Across All Flight Conditions

This fully independent system is designed to deliver consistent and precise AoA measurements in all flight environments. Using multiple sensors and a validated normalized pressure ratio approach, it has been rigorously tested through 20 years of research and flight trials.

Whether flying at high or low altitudes, different speeds, or with varying aircraft loads, Absolute AoA delivers dependable data. It also supports essential performance targets like Vx, Vy, and Best Glide, not just stall speed. (Patent pending.) 

Smart Design. Simple Installation.
•    Robust Construction: The AoA probe is crafted from aircraft-grade 6061 aluminum and mounts under the wing’s inspection plate.
•    LiDAR-Based Flap Detection: A game-changing feature that eliminates mechanical flap linkages by detecting flap position with precision during takeoff and landing profiles.  

Installation Options:
   •    Wireless setup: Around 1 hour
   •    Wired configuration: Generally 3–4 hours using standard access points

Flexible Connectivity and Display Options

•    Reliable Communication: Choose between Wi-Fi or wired connectivity to link the wing-mounted sensor with the cockpit processor.
   •    Display Variants:
      o    2.8-inch panel-mounted screen
      o    Bar-style dashboard indicator
      o    6.5-inch digital HMI (Human-Machine Interface) for streamlined setup and calibration

Accuracy That Covers the Full Flight Envelope
While traditional systems may falter outside stall zones, Absolute AoA maintains linear, accurate readings across all phases of flight. The result? Clear, meaningful data that enhances pilot decision-making—especially during takeoff, landing, and slow-speed operations—ultimately improving both safety and flight quality.
Visit www.holymicro.com to learn more. 

Acknowledgment: The original press release was published on General Aviation News. You can view the full release here.