The Rockwell Collins Pro Line 21 is a fully integrated avionics suite designed to enhance situational awareness, reduce pilot workload, and improve operational efficiency. Found in thousands of business jets and turboprops, this system delivers a modern glass cockpit experience with large-format LCD displays, intuitive controls, and advanced navigation capabilities.

Cockpit view of the Rockwell Collins Pro Line 21 avionics system.
– Large LCD Displays – High-resolution screens provide clear, real-time flight data
– Integrated Flight Management System (FMS) – Supports WAAS/LPV approaches and advanced routing
– Digital Autopilot – Enhances precision and reduces pilot fatigue
– Weather Radar & Terrain Awareness – Improves safety in challenging conditions
– ADS-B Out Compliance – Meets FAA NextGen requirements
Because of its modular design, the PL21 can be tailored to specific aircraft models and mission needs.
Upgrading to the PL21 transforms legacy aircraft into modern, capable platforms. Operators gain access to:
– Improved Reliability – Digital systems reduce maintenance and downtime
– Enhanced Safety – Better situational awareness and automation
– Increased Aircraft Value – A modern cockpit boosts resale appeal
– Lower Operating Costs – Efficient systems reduce fuel and maintenance expenses
According to Collins Aerospace, over 3,500 aircraft currently fly with PL21 systems, supported by a global service network
– Hawker 800XP
– Beechcraft Premier 1A
– Bombardier Learjet 40/45
– Cessna Citation XLS/XLS+
– Dassault Falcon 50 (retrofit)
If you’re considering an upgrade, Jet Advisors can help you evaluate the cost, compatibility, and return on investment.
At Jet Advisors, we guide clients through avionics upgrades with clarity and confidence. Our services include:
– Upgrade Planning – We assess your aircraft’s current avionics and recommend the best path forward
– Market Impact Analysis – Understand how an upgrade affects resale value
– Aircraft Comparison Reports – See how your aircraft stacks up against others with modern avionics
– Brokerage & Listing Support – Sell faster with a Pro Line 21-equipped aircraft
Explore our Aircraft Acquisition and Jet Comparison Reports to learn more.
– Collins Aerospace – Pro Line 21 Overview
– AvBuyer – Pro Line 21 Upgrade Paths
– Rockwell Collins Retrofit Brochure (PDF)
Contact Jet Advisors today to explore how the Pro Line 21 can enhance your aircraft’s performance, safety, and value.
👉 Request a Consultation or cal us at 617.600.6990