High-performance synthetic lubricating oil designed for aviation turbine engines and helicopter transmissions, meeting U.S. Military and international standards.
Royco 555 Amber Synthetic Lubricating Oil meets stringent U.S. Military and international specifications, delivering top-tier thermal stability and protection for aviation turbine engines, transmissions, and gearboxes.
Meets U.S. Military Spec DoD-PRF-85734: Qualified for military helicopter transmissions and turbines
Complies with International Standards: Meets U.K. DERD.2497, XAS-2354, British DEF STAN 91-100, NATO Code O-160, and UK Joint Service Designation OX-26
Approved for Commercial Use: Compatible with engines and gearboxes by Pratt and Whitney, Pratt and Whitney Canada, IAE, CFM International, General Electric, Rolls Royce, Garrett, Motorlet, and Turbomeca
Superior Thermal Stability: Performs reliably in extreme environments up to 400°F (204°C)
Amber Color for Identification: Prevents cross-contamination in multi-fluid systems
Advanced Synthetic Formulation: Provides excellent oxidation stability and wear protection
ROYCO 555 Amber Synthetic Lubricating Oil is engineered for high-performance applications in aviation, designed to meet the rigorous demands of helicopter transmissions, turbine engines, and gearboxes operating under high stress and extreme temperatures. ROYCO 555 meets all the requirements and is qualified under U.S. Military specification DoD-PRF-85734 and complies with multiple international standards, including U.K. DERD.2497, XAS-2354, British DEF STAN 91-100, NATO Code O-160, and UK Joint Service Designation OX-26.
This advanced synthetic oil is also approved for commercial use in aircraft components from leading manufacturers, such as Pratt and Whitney (521C Type II), Pratt and Whitney Canada, IAE, CFM International, General Electric (D-50 TF 1), RR Allison (EMS-53 (Obsolete)), Rolls Royce, Garrett, Motorlet, and Turbomeca, along with Garrett and Sunstrand accessories. With exceptional thermal and oxidation stability, ROYCO 555 offers reliable performance up to 400°F (204°C), extending the lifespan of critical components and reducing maintenance needs. Its amber color provides easy identification, helping prevent cross-contamination in multi-fluid environments.
Whether used in military or commercial aviation, ROYCO 555 Amber Synthetic Lubricating Oil is trusted by professionals to protect essential equipment under the most demanding conditions.
Technical Specifications:
Manufacturer: Royco
Color: Amber
Temperature Range: Up to 400°F (204°C)
Military Specification: DOD-PRF-85734
International Standards: U.K. DERD.2497, XAS-2354, British DEF STAN 91-100, NATO Code O-160, UK Joint Service Designation OX-26
Commercial Approvals: Pratt and Whitney (521C Type II), Pratt and Whitney Canada, IAE, CFM International, General Electric (D-50 TF 1), RR Allison (EMS-53 (Obsolete)), Rolls Royce, Garrett, Motorlet, Turbomeca, Garrett and Sunstrand accessories
It's the standard pilot log for a reason. Many different flight time categories with just enough space for remarks. As a helicopter pilot, it would be nice if the endorsements section wasn't fixed-wing focused; but I get that there are a lot fewer helicopter pilots out there, so I won't dock any stars for that. This is my third ASA-SP-57 logbook at this point, and I intend to keep getting more of them in the future.
This is nearly identical to my first pilot logbook, but with a new smooth matte black cover. This logbook checks all the boxes from student pilot through Commercial. It might just be the only logbook you’ll ever need. Fly safe!
