ACES II Ejection Seat Upgrade

ACES II Ejection Seat Upgrade (LSI P/N: EJS-1620-05)
NSN: 1680-01-449-0873
FSCM: 0B2S0

Improve seat capability & performance with new flip-up pitot tube sensors.

Application
All aircraft utilizing ACES II Ejection seats, including the F-15, F-16, A-10, F-22. The upgrade is designed to eliminate obstruction of pitot sensors by the pilots' protective or special clothing. The existing fixed pitot tubes are replaced with longer flip up design pitot tubes. During normal flight operations, the flip-up pitot tubes are folded down and locked out of the way. Should an ejection occur, the pitot tubes flip up to a total span of 22". This modification is performed to the ejection seat parachute container. After modification, the upgraded container may be installed and maintained with the same tools, procedures and technical data as the original container.

• RELIABILITY - Flip-up pitot's provide accurate, unobstructed speed sensing.
• IMPROVED VISIBILITY - Flip-up pitot's provide unobstructed, over the shoulder, rear visibility for the pilot.
• COMPATIBILITY - Modification is fully compatible with all current and anticipated clothing and accessory configurations.
• APPROVED - Current U.S. ejection seat production incorporates the flip-up pitot tube design.

Image 1 (above): Extended
Image 2 (below): Stowed