Horizontal Stabilizer Stability True Airspeed 
Pilot Institute
JULY 11, 2025
Key Takeaways Mach number is a dimensionless ratio of true airspeed to local speed of sound. Mach number is simply a ratio of your true airspeed to the local speed of sound. When you reach around 36,000 feet (11,000 m) near the tropopause, the temperature stabilizes at around -56.5 °C. Here’s why.
Flying Magazine
JUNE 30, 2025
It is as far forward as possible for stability under heavy braking and absorbs serious shock loading through a trailing-beam design. There are gap seals between the elevator and horizontal stabilizer, and the rudder and vertical stabilizer. What about the nosewheel itself? In our opinion, it’s brilliantly engineered.
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Plane and Pilot
SEPTEMBER 20, 2024
Alongside a nearby highway, some recognizable bits of airplane, the vertical stabilizer and rudder, a horizontal stabilizer and elevator, fell separately to Earth. Flutter is a dangerous, complex, dynamic aeroelastic phenomenon dependent on true airspeed. The pilot died instantly.
Plane and Pilot
SEPTEMBER 20, 2024
Alongside a nearby highway, some recognizable bits of airplane, the vertical stabilizer and rudder, a horizontal stabilizer and elevator, fell separately to Earth. Flutter is a dangerous, complex, dynamic aeroelastic phenomenon dependent on true airspeed. The pilot died instantly.
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