that adjusts both throttle and propeller RPM via a mechanical cam actuated throttle and propeller control system. The aircraft also include a leading-edge cuff on the wing for improved spin protection and 26G energy-absorbing seats for improved crashworthiness. Construction is dominated by composite materials (a technique the company has used with every model since its first design in 1988, the VK-30), with traditional aluminum being used only for flight control surfaces. Although not the first certified GA aircraft built with composites, the SR-series was the first composite aircraft produced in large numbers (over 3,000 units delivered from 1999–2006 alone). The SR22T, introduced in 2010, is powered by a Continental TSIO-550-K turbocharged piston engine. Turbocharging allows the engine to maintain maximum power at higher altitudes while increasing the maximum operating altitude to . Cirrus Airframe Parachute System (CAPS) SR-series aircraft are equipped with the Cirrus Airframe Parachute System (CAPS), developed in association with Ballistic Recovery Systems, a ballistic parachute deployed from the back of the aircraft. In many inflight emergencies, it allows the entire airplane to descend safely to the ground and has been credited with saving over 200 lives to date. Cirrus was the first manufacturer to receive FAA certification for production aircraft with ballistic parachute systems, and remains the only aviation company to implement the device as a standard equipment on all its models. The system was first tested in 1998 by late Air National Guard F-16 pilot and chief Cirrus test pilot, Scott D. Anderson, who completed the tests in an SR20 over the southern California desert. The turbofan-powered Vision SF50 also comes equipped with CAPS, making it the first jet with a whole-plane parachute to receive certification. Safe Return autoland system In October 2019, Cirrus became the first GA company, along with Piper Aircraft, to announce an emergency autoland system, developed by Garmin, which Cirrus calls "Safe Return" on the Vision SF50. It initiates at the push of a button and allows landing on runways over 5,836 ft (1,779 m) without any human input. The SF50 became the first jet, and third GA aircraft, to become certified with the system, earning certification in August 2020. In June 2021, Garmin won the Collier Trophy for its development of autoland, an award Cirrus had been honored with three years prior for the SF50, as the first certified single-engine civilian jet. List of Cirrus aircraft Cirrus SR20 - single piston-engine