The Stinson Reliant series represents one of the most iconic and recognizable aircraft of the 1930s and 1940s, distinguished by its elegant gullwing design and powerful radial engines. This comprehensive documentation collection covers the civilian SR series (SR-6, SR-8, SR-9, SR-10) and the military AT-19 trainer variant, providing essential technical reference materials for owners, restorers, and aviation researchers working with these legendary executive transports and wartime trainers.

Definitive Collection with Free Lifetime Updates: This is a living collection that we continuously expand and refine. As we acquire additional Stinson Reliant documentation, technical bulletins, or variant-specific materials, we update this collection and provide free lifetime updates to all purchasers. Your one-time purchase guarantees access to all future additions and improvements to this collection.

Historical Note

The Stinson Reliant series emerged in the early 1930s as a premium executive transport and utility aircraft, designed to compete in the growing market for comfortable, capable cabin aircraft. Developed by Stinson Aircraft Company of Wayne, Michigan, the Reliant featured a distinctive gullwing design with gracefully curved wing roots that gave the aircraft its unmistakable profile and earned it the enduring nickname "Gullwing Stinson."

The Reliant's design emphasized both performance and luxury. Powered by robust radial engines ranging from 245 to 450 horsepower (depending on variant), the aircraft offered impressive speed, range, and load-carrying capability. The spacious cabin accommodated up to five occupants in comfortable, well-appointed surroundings with large windows providing excellent visibility. The high-wing configuration with V-bracing struts ensured stable flight characteristics and good short-field performance.

The SR series evolved through multiple variants during the 1930s, each offering improvements in power, equipment, and capability. The SR-6 and SR-7 featured Lycoming radial engines, while the SR-8 introduced the more powerful Wright R-760 Whirlwind. The SR-9 became one of the most popular variants with its 300-hp Lycoming R-680 engine, offering an excellent balance of performance and operating economy. The final civilian variant, the SR-10, featured enhanced equipment and refinements based on years of operational experience.

With the onset of World War II, the Reliant found new purpose as a military trainer. The U.S. Army Air Forces adopted the type as the AT-19, using it primarily for transition training and as a navigation and instrument trainer. The AT-19 retained the Reliant's excellent handling characteristics while incorporating military equipment, instruments, and communication systems. Hundreds served throughout the war, training pilots and navigators who would go on to fly combat aircraft in all theaters of operation.

The Reliant's robust construction, featuring a welded steel tube fuselage with fabric covering and wooden wing structure, proved exceptionally durable. Many examples survived military service and returned to civilian use after the war, serving as executive transports, bush planes, and utility aircraft. Today, the Stinson Reliant remains highly sought after by vintage aircraft enthusiasts and warbird collectors, prized for its classic lines, solid construction, distinctive appearance, and excellent flying qualities. Active examples can be found in private collections, air shows, and vintage aircraft gatherings worldwide.

Manuals Included in This Collection

SR-6 Reliant Documentation:

• Stinson SR-6 Reliant Aircraft Inspection Instruction Manual

SR-8 Reliant Documentation:

• Stinson SR-8 Reliant Aircraft Parts Manual
• Stinson SR-8 / SR-9 Reliant Aircraft Interchange Parts Manual
• Stinson SR-8 Reliant Aircraft Inspection Instruction Manual

SR-9 Reliant Documentation:

• Stinson SR-9 Aircraft Part Price List Manual, 1937
• Stinson SR-9 Reliant Aircraft Inspection Instruction Manual, 1944
• Stinson SR-9 Reliant Aircraft Inspection Instruction Manual

SR-10 Reliant Documentation:

• Stinson SR-10 5900 Aircraft Specification Manual
• Stinson SR-10 Aircraft Description and Maintenance Manual
• Stinson SR-10 Aircraft Inspection Manual
• Stinson SR-10 Aircraft Parts Price Manual
• Stinson SR-10 Aircraft Specification Manual

AT-19 Military Trainer Documentation:

• Stinson AT-19 Aircraft Parts Catalog Manual, T.O. 01-50KA-4, 1944
• Stinson AT-19 Aircraft Structural Repair Manual, T.O. 01-50KA-3, 1944
• Stinson AT-19 Aircraft Flight Manual, T.O. 01-50KA-1, 1944
• Stinson AT-19 Aircraft Erection and Maintenance Manual, T.O. 01-50KA-2, 1943

This collection provides comprehensive coverage of flight operations, maintenance procedures, parts identification, inspection requirements, and military technical orders for the complete Stinson Reliant family.

Stinson Reliant Series Variant Breakdown

Engineering Norms and Standards

Certification Basis: The Stinson Reliant series was certificated under Civil Air Regulations (CAR) for normal category aircraft during the 1930s. Military AT-19 variants operated under U.S. Army Air Forces specifications and technical orders. The aircraft met contemporary standards for executive transport and utility operations.

Construction Standards: Stinson employed welded steel tube fuselage construction with fabric covering, combined with wooden wing structure featuring the distinctive gullwing configuration. Radial engines (Lycoming R-680, Wright R-760) provided reliable power with excellent power-to-weight ratios. The high-wing design with V-bracing struts ensured structural integrity and stable flight characteristics.

Manufacturing Quality: Stinson's engineering approach emphasized both performance and luxury, unusual for 1930s aircraft. The Reliant featured comfortable cabin appointments, excellent visibility through large windows, and robust construction suitable for utility operations. Production continued through multiple ownership transitions (Cord Corporation, AVCO, Vultee, Convair) while maintaining consistent quality standards.

Specialized Documentation

Military Technical Orders (AT-19): The AT-19 military trainer variant operated under comprehensive U.S. Army Air Forces technical order system, including:

• T.O. 01-50KA-1: Flight Manual with military operating procedures
• T.O. 01-50KA-2: Erection and Maintenance Manual for field operations
• T.O. 01-50KA-3: Structural Repair Manual for combat theater maintenance
• T.O. 01-50KA-4: Parts Catalog with military nomenclature and part numbers

Civilian Variants (SR Series): The active Stinson Reliant fleet benefits from ongoing restoration and maintenance support. Owners should consult current resources for:

• Parts availability through specialty suppliers and fabrication shops
• STC modifications for modern equipment and engine upgrades
• Fabric covering techniques and materials meeting current standards
• Radial engine overhaul and maintenance procedures

Restoration Considerations: Common restoration challenges include sourcing original-specification parts for 1930s-era aircraft, authentic paint schemes and markings (especially for military AT-19 variants), fabric-to-modern-materials conversions, and wooden wing structure inspection and repair.

Where to Find Additional Documentation

Official Support:

• Current Type Certificate Holders: Contact for current airworthiness requirements and compliance documentation
• Specialty Parts Suppliers: Several vendors specialize in Stinson Reliant parts, including fabricated components and approved substitutions

Historical Archives:

• Stinson Reliant Owner Groups and Forums: Active communities sharing technical support, restoration expertise, and operational experience
• Type Clubs: Stinson-specific organizations providing maintenance guidance, parts sourcing assistance, and community support
• Warbird Organizations: Commemorative Air Force and similar groups maintaining AT-19 examples in flying condition
• Museums: Texas Air Museum – Stinson Chapter (San Antonio) and other preservation venues with Reliant examples

Specialty Vendors:

• Online Aviation Library: Structured digital collections with free lifetime updates, organized folder hierarchy, and professional-grade archival resources for restoration and research
• Aircraft Sales and Registries: Controller.com for current market listings (V-77 and SR variants regularly available), Airport-Data.com for production and registration data, FAA N-number lookup for airworthiness verification

Format and Delivery

All manuals are provided as high-quality PDF files for instant digital download. Search, bookmark, and reference critical technical information whenever needed. Print specific sections for hangar use or maintain the entire collection on a tablet for easy field access.

Disclaimer

This item is sold for historical and reference only. These are either original or copies of manuals and blueprints used when these aircraft were in active duty, now transferred into electronic format. These manuals and blueprints are not meant to be used for current update material for certification/repair, but make an excellent reference for the scholar, collector, modeller or aircraft buffs. For proprietary reasons, we generally only provide civil manuals and blueprints on obsolete aircraft/engines/helicopters. The information is for reference only, and we do not guarantee the completeness, accuracy or currency of any manuals.

Reference herein to any specific commercial products by trade name, trademark, manufacturer, or otherwise, is not meant to imply or suggest any endorsement by, or affiliation with that manufacturer or supplier. All trade names, trademarks and manufacturer names are the property of their respective owners.

This digital compilation, structure, indexing and presentation are © Sicuro Publishing.