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U.S. approves P-8A patrol aircraft and torpedo sale to Singapore

21 January 2026 at 05:27
The United States State Department has approved a possible $2.316 billion Foreign Military Sale to Singapore for P-8A maritime patrol and reconnaissance aircraft, MK 54 lightweight torpedoes, and associated systems, the Defense Security Cooperation Agency said as it formally notified Congress of the decision. According to the certification delivered to lawmakers, the Government of Singapore […]

U.S. Air Force receives first T-7A trainer aircraft

10 January 2026 at 03:31
The United States Air Force formally received its first T-7A Red Hawk on January 9, 2026, during an arrival ceremony hosted by Air Education and Training Command (AETC), marking the start of the service’s transition to a new generation of jet trainer aircraft. The event at Joint Base San Antonio–Randolph marked the first delivery from […]

Teardown of Boeing 777 Cabin Pressure Control System

3 January 2026 at 16:00

Modern passenger airliners are essentially tubes-with-wings, they just happen to be tubes that are stuffed full with fancy electronics. Some of the most important of these are related to keeping the bits of the tube with humans inside it at temperatures and pressures that keeps them alive and happy. Case in point the Boeing 777, of which [Michel] of Le Labo de Michel on YouTube recently obtained the Cabin Pressure Control System (CPCS) for a teardown.

The crucial parts on the system are the two Nord-Micro C0002 piezo resistive pressure transducers, which measure the pressure inside the aircraft. These sensors, one of which is marked as β€˜backup’, are read out by multiple ADCs connected to a couple of FPGAs. The system further has an ARINC 429 transceiver, for communicating with the other avionics components. Naturally the multiple PCBs are conformally coated and with vibration-proof interconnects.

Although it may seem like a lot of hardware just to measure air pressure with, this kind of hardware is meant to work without errors over the span of years, meaning significant amounts of redundancy and error checking has to be built-in. Tragic accidents such as Helios Airways Flight 522 involving a 737-300 highlight the importance of these systems. Although in that case human error had disabled the cabin pressurization, it shows just how hard it can be to detect hypoxia before it is too late.

U.S. clears Denmark purchase of P-8A patrol aircraft

30 December 2025 at 04:18
The United States on Dec. 29 approved a possible $1.8 billion Foreign Military Sale to Denmark for up to three P-8A multi-mission maritime patrol and reconnaissance aircraft and related systems, with Congress formally notified of the decision. According to the notification, the determination was made by the U.S. State Department, and the Defense Security Cooperation […]

Boeing wins $8.58B deal to build F-15IA fighter jets for Israel

30 December 2025 at 04:11
The United States has awarded Boeing a ceiling $8.58 billion contract to design, produce, and deliver new F-15IA fighter aircraft for the Israeli Air Force, according to a newly issued contract award notice released on December 29. The hybrid contract covers the design, integration, instrumentation, testing, production, and delivery of 25 new F-15IA aircraft, with […]
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