145K13-1 – Goodyear Flight Eagle DT Aircraft Tire (14.5x5.5-6)
Available now through the AirParts Aero marketplace.
Overview Section
The Goodyear Flight Eagle DT 145K13-1 is a high-performance, dual-tempered (DT) aircraft tire engineered specifically for high-frequency business jet and regional aircraft operations. This tire is part of Goodyear's premier "Flight Eagle" line, known for its ability to handle high landing speeds and provide exceptional wear resistance on paved runways.
The 14.5x5.5-6 sizing indicates a specialized low-profile design utilized on the nose gear of several popular jet airframes. The "DT" (Dual Tempered) designation refers to Goodyear’s proprietary nylon cord heating process, which minimizes "flat-spotting" after the aircraft has been parked for extended periods—a critical feature for corporate flight departments that require immediate, vibration-free taxi and takeoff.
Key Features Section
Dual Tempered (DT) Nylon Construction: Significantly reduces tire carcass "growth" and prevents flat-spotting, ensuring a smoother ride and longer casing life.
Specialized Wear-Resistant Tread Compound: Formulated to withstand the high-friction heat generated during high-speed landings and heavy braking.
Enhanced Sidewall Protection: Incorporates antioxidants and specialized rubber blends to resist ozone cracking and UV degradation, extending the tire's shelf life.
Large Grooved Tread Pattern: Designed for superior hydroplaning resistance, providing excellent traction and directional stability on wet runways.
Aviation-Grade Bead Design: Engineered for a high-pressure, precision fit on 6-inch wheels, ensuring the tire stays seated even during high-impact landings.
Lightweight Efficiency: Optimized for a high strength-to-weight ratio, helping operators maintain aircraft useful load without sacrificing durability.
Technical Specifications Section
| Specification | Detail |
| Part Number | 145K13-1 |
| Manufacturer | Goodyear Tire & Rubber Co. |
| Size | 14.5x5.5-6 |
| Ply Rating | 10 Ply (Typical for K13-1 configuration) |
| Speed Rating | 160 MPH (Standard Flight Eagle Rating) |
| Type | Tubeless |
| Weight | Approximately 8.8 lbs |
| Standard Inflation | Refer to Aircraft Maintenance Manual (AMM) |
Aircraft Compatibility Section
The 145K13-1 is primarily utilized as a Nose Gear Tire for the following aircraft:
Bombardier Learjet 40/45/70/75: The standard nose tire for the Learjet "New Generation" family.
Cessna Citation Excel / XLS / XLS+: Essential for the high-utilization cycles of these mid-size jets.
Embraer Phenom 300: A popular choice for this high-performance light jet.
Gulfstream G150: Utilized for its compact size and high speed rating.
Technical Applications & Safety
The nose tire is critical for directional control during the high-speed transition from "wheels on" to taxi. Because it is a tubeless tire, the integrity of the wheel O-ring and the tire bead is paramount.
Safety Warning: Proper inflation is the single most important maintenance factor. Under-inflation causes excessive sidewall flexing and heat buildup, which can lead to "thrown treads" or catastrophic carcass failure. Always check tire pressure "cold" (at least 3 hours after the last flight). Additionally, monitor for "Cords Showing"—if any part of the fabric carcass is visible through the tread grooves, the tire must be replaced immediately per FAA and Goodyear service limits.
Technical Engineering Insight
The engineering value of the 145K13-1 lies in its Tread Void Ratio. Goodyear engineers have optimized the ratio between the rubber contact patch and the grooves to balance two opposing forces: heat dissipation and hydroplaning resistance. In the small 14.5-inch diameter, the tire spins at extremely high RPMs during a 120-knot touchdown. The grooves are designed to "pump" water away from the center at high velocity, while the tread blocks are thick enough to act as a heat sink, absorbing the thermal energy of the initial spin-up without melting the rubber compound.
Installation & Maintenance Addendum
Wheel O-Ring Replacement: Always install a new wheel-half O-ring when mounting a new 145K13-1. A reused O-ring is the most common cause of "mystery" pressure loss.
Balance: Nose tires should be balanced using approved weights. An unbalanced nose tire will cause a distinct "shudder" through the control yoke during the takeoff roll.
Flat Spot Inspection: If the aircraft has undergone an emergency braking event (rejected takeoff), inspect the tire for localized flat spots. If the flat spot causes a vibration, the tire must be removed, as the internal plies may have suffered heat damage.
Description: Flight Eagle DT Aircraft Tire 14.5X5.5-6
Part number: 145K13-1
Alternate part number: 301-231-880
FAA Eligibility: [ Click Here ]
FEATURES
• Unique design for tough applications
• Unique cord body shape helps reduce stress as the tire cycles from tension to compression
• Tough casing design performs in a wide range of operating conditions
• Specially compounded tread design and large contact area versatility for many runway-types
SPECIFICATIONS
• Diameter: 14-1/2 in
• Section Width: 5-1/2 in
• Wheel/Rim Diameter: 6 in
• Speed Rating: 210 mph
• Load Rating: 2800 lb
• Number of Ply: 14
• Domestic/Import: Domestic
AIRCRAFT ELIGIBILITY
• Dassault Falcon 20
• Dassault Falcon 200
• Dassault Falcon 50