Sesame Technologies AOA-EX-Guard – EX Angle of Attack Vane Cover

The AOA-EX-Guard is designed to secure the angle of attack (AOA) vane during ground maintenance or storage, preventing unwanted movement that could damage the vane or affect calibration. It protects the vane from environmental factors like weather, debris, or incidental contact, helping maintain sensor accuracy when the aircraft returns to service.

The cover attaches via heavy-duty lever suction cups that conform to the aircraft’s fuselage surface without requiring any modifications. The clamp-style grip holds firmly yet can be removed cleanly without damaging paint or structure. This balance supports both reliable protection and ease of use for ground crews.

No. The AOA-EX-Guard requires no fuselage modifications or permanent changes to aircraft structure or sensors. It is engineered to attach externally via its suction and cushion system, making it non-invasive and reversible.

The guard uses a high-temperature silicone vane cushion that protects the AOA vane from scratches or damage without touching sensitive surfaces. Its body is crafted with a low-profile, carbon fiber or reinforced material that resists damage, coupled with a durable lever clamp system to endure handling during ground operations. It’s built to stand up to routine exposure and handling without degrading.

The AOA-EX-Guard works with vanes from many manufacturers, including Rosemount, Conrac, Teledyne, Sextant, Kollsman, Gianni, Ametek, Gates, Safeflight, Topp, and others. This broad compatibility makes it suitable for many business jets and executive aircraft. Always confirm fitment for your specific vane to guarantee protection and correct positioning.

It is manufactured under ISO 9001 and AS9100D quality assurance systems, ensuring aerospace-grade precision and reliability. The guard includes a NAS1756-approved warning streamer for high visibility, and it meets CFR 25.853 flammability requirements.

By securing the vane against movement, the EX-Guard helps prevent damage that can lead to inaccurate angle of attack readings in flight. The warning streamer acts as a visual cue to remove the device before flight, reducing human error. Together, these features assist in compliance and help avoid safety incidents resulting from compromised sensors.

Yes. The materials used (silicone cushioning and a reinforced shell) are chosen for heat tolerance and resistance to weather, including moisture infiltration. Although exact temperature ratings aren’t all listed, the guard is built for hangar/ramp exposure and to protect delicate vanes under varying environmental conditions.

The EX-Guard is designed for fast, tool-free installation. The lever suction-cup mechanism lets technicians secure it in place quickly, and the removal loops and warning streamer make take-off prep more manageable. Ease of use is especially valuable for frequent ground handling.

Yes! The AOA-EX-Guard comes pre-fitted with positive attachment points for Sesame Technologies’ Safety Lanyard System, which helps prevent cover loss or accidental displacement during maintenance or storage. This reduces the risk of foreign object damage and ensures all gear remains accounted for.

The guard is equipped with a NAS1756-approved warning streamer that prominently displays part number identification. This red streamer serves as a visual “remove before flight” reminder during preflight checks, crucial for preventing sensor covers from being left on inadvertently. It also enhances ground crew awareness around protective gear.