Folland Gnat Aircraft Manuals Collection

This comprehensive digital collection contains authentic technical documentation for the legendary Folland Gnat trainer and fighter aircraft. These original manuals provide detailed operational, maintenance, and technical information essential for historians, restorers, aviation enthusiasts, and researchers studying this remarkable Cold War era aircraft.

Definitive Collection with Free Lifetime Updates: This is a living collection that we continuously expand and refine. As we acquire additional Folland Gnat 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 Folland Gnat holds a distinguished place in aviation history as one of the most successful lightweight fighter and trainer aircraft of the Cold War era. Designed by W.E.W. Petter at Folland Aircraft Ltd. in Hamble, Southampton, England, the Gnat first flew in 1955 as a private venture lightweight fighter concept developed under Air Ministry Operational Requirement OR.303. Though the RAF initially showed limited interest in the fighter variant, the two-seat Gnat T.1 trainer was adopted in 1962 and became the standard advanced jet trainer for the Royal Air Force.

The Gnat T.1 served with distinction in RAF training squadrons from 1962 through 1979, training thousands of pilots in the demanding skills of high-performance jet aircraft operation. Its nimble handling, excellent visibility from the tandem cockpit, and forgiving flight characteristics made it an ideal advanced trainer, bridging the gap between basic trainers and frontline fighters. The aircraft gained international fame as the mount of the RAF's elite Red Arrows aerobatic display team from 1965 to 1979, where its agility and compact size created spectacular formation displays that thrilled millions of spectators worldwide.

Beyond British service, the Gnat fighter variant found success as an export aircraft, particularly with the Indian Air Force, which operated the type extensively and later produced it under license as the HAL Ajeet. The Finnish Air Force also operated the Gnat, and the aircraft saw combat action during the Indo-Pakistani conflicts of 1965 and 1971, where it proved itself as a capable dogfighter despite its diminutive size.

Production of the Gnat included 105 T.1 trainers for the RAF and numerous fighter variants for export customers. The aircraft's legacy lives on today, with several examples maintained in flying condition by private collectors and heritage organizations in the UK and internationally, operating under Permit to Fly schemes. The Gnat represented a bold approach to fighter design—proving that a small, lightweight, and relatively simple aircraft could deliver exceptional performance and versatility.

Manuals Included in This Collection

• Folland Gnat Aircraft Flight Reference Cards Manual - AP 101B-1801-14 - 1978
• Folland Gnat Aircraft Flying Instructor's Handbook Manual - 1965
• Folland Gnat Aircraft Provisional Training Manual
• Folland Gnat T Mk.1 Aircraft Pilot's Notes Manual - Development Batch Aircraft Only
• Folland Gnat T Mk.1 Aircraft Pilot's Notes Manual for The Finnish Air Force
• Folland Gnat T Mk 1 Aircraft Aircrew Manual - AP 101B-1801-15
• Folland Gnat T Mk.1 Aircraft Pilot's Notes Manual
• Folland Gnat T Mk.1 Aircraft Flight Service Schedule Manual
• Folland Gnat T Aircraft Structural Repair Manual
• Folland Gnat Aircraft Operating Data Manual
• Folland Gnat Aircraft Safety Service Notes Manual

This collection provides comprehensive coverage of the Gnat T.Mk 1 trainer variant as operated by the Royal Air Force and export customers including the Finnish Air Force. Documentation covers aircraft equipped with the Bristol Siddeley Orpheus 101 turbojet engine (derated to 4,520 lb static thrust for extended service life), including normal operating procedures, emergency drills, flight reference data, instructor guidance, structural repair procedures, and safety protocols for both training and display operations.

Engineering Norms and Standards

The Folland Gnat T.Mk 1 was designed, manufactured, and maintained according to rigorous 1960s/1970s British military aviation standards. All technical documentation in this collection references the RAF Air Publications (AP) system, which was the authoritative standard for military aircraft technical data during the Gnat's service life and the predecessor to modern DEF STAN specifications.

Primary Air Publications (AP) System: The Gnat T.Mk 1 was serviced under the AP 101B-0600 series, later updated to the AP 101B-1801 series. Key references include AP 101B-1801-15 (Aircrew Manual - the authoritative guide for operating procedures), AP 101B-1801-16 (Operating Data Manual containing performance data, charts, and limitations), AP 101B-1801-1A (Servicing Manual - Mechanical for airframe and systems maintenance), AP 101B-1801-1B (Servicing Manual - Electrical covering electrical systems, wiring, and avionics), and Flight Reference Cards specific to the Gnat T Mk 1 (AP 101B-1801-14).

Material and Structural Standards: Materials and components were manufactured to Ministry of Defence Standards (DEF STAN) and Directorate of Technical Development (DTD) specifications, which defined metals, plastics, and composite materials for 1960s military aircraft. The airframe utilized the RAE 102 modified airfoil and was exceptionally robust, designed for high-g training maneuvers with structural capability of +9 g, though typically operated within a +7.5/-4 g limit in RAF service to ensure long fatigue life.

Quality Assurance and Airworthiness: Maintenance and manufacturing adhered to the rigorous RAF 100-series standards for airworthiness, managed by the Ministry of Technology during the aircraft's service life. All modifications required approval via the RAF Technical Modification Committee, with records maintained on MOD Form 700. Component numbering followed the Hawker Siddeley system (Hawker Siddeley acquired Folland Aircraft Ltd. in 1959), with aircraft serial numbers in the format XR977.

Key Systems Specifications: The Bristol Siddeley Orpheus 101 turbojet engine was the primary powerplant. Flight controls featured hydraulically powered ailerons and tailplane operating at approximately 3,000 psi pressure with manual reversion capability. Safety and emergency systems included Folland lightweight ejection seats, a Ram Air Turbine (RAT) for emergency hydraulic power, and a Gas Turbine Unit (GTU) auxiliary power unit located above the main engine.

Specialized Documentation

Current Airworthiness Support: While there is no active Original Equipment Manufacturer (OEM) holding a conventional Type Certificate for the Folland Gnat, surviving airworthy examples (such as UK-registered G-FRCE and G-SLYR) operate under Permit to Fly schemes administered by the UK Civil Aviation Authority (CAA). Airworthiness oversight relies on legacy military documentation, particularly the RAF AP 101B-1801 series manuals included in this collection, combined with operator-specific maintenance schedules approved by the CAA.

Design Authority and Legacy Data: Following Hawker Siddeley's acquisition of Folland Aircraft Ltd., design authority and legacy technical data eventually passed to what became BAE Systems. While BAE Systems does not provide active commercial support for the Gnat, they hold historical design data and type records. Operators of airworthy Gnats typically work with specialist aviation engineering firms experienced in vintage jet aircraft to develop CAA-approved maintenance programs based on the original RAF documentation.

Modifications and Variants: The collection includes documentation for multiple Gnat variants including the standard RAF Gnat T.Mk 1, development batch aircraft, and Finnish Air Force export versions. Operators of preserved flying examples may have incorporated modern avionics, updated safety systems, or other modifications approved under their specific Permit to Fly conditions. Such modifications are documented separately by the operating organization and approved by the relevant civil aviation authority.

Where to Find Additional Documentation

Official Support: For operators of airworthy Folland Gnat aircraft, the UK Civil Aviation Authority (CAA) oversees Permit to Fly operations and can provide guidance on airworthiness requirements. BAE Systems holds historical design authority and legacy technical data, though they do not provide active commercial support. Specialist aviation engineering firms with experience in vintage military jet aircraft can assist with developing CAA-approved maintenance programs.

Historical Archives and Community Resources: The Folland Gnat community includes several active preservation groups and enthusiast organizations. The Classic Jet Aircraft Association (CJAA) in the UK supports operators of vintage jet aircraft including the Gnat. Aviation museums including the RAF Museum Cosford, Imperial War Museum Duxford, and the Midland Air Museum maintain preserved Gnat examples and hold archival materials. Online forums such as Key Publishing's Aviation Forums and PPRuNe (Professional Pilots Rumour Network) host discussions among Gnat enthusiasts, former RAF instructors, and current operators. The Folland Aircraft Archive Trust preserves historical records and photographs related to Folland aircraft.

Specialty Documentation Vendors: Online Aviation Library specializes in curated collections of authentic aviation technical documentation, including this comprehensive Folland Gnat manual set. Other providers of historical aviation documentation include AirCorps Library, FlightManuals.com, and Aircraft Reports. For current operators seeking specific technical data or engineering support, specialist firms such as Delta Jets and other vintage jet maintenance organizations can provide consultation services.

Video: Folland Gnat - The Tiny British Jet That Challenged the Giants

Format and Delivery

All manuals are provided as high-resolution PDF digital files, preserving the original technical drawings, diagrams, specifications, tables, performance charts, and procedural information exactly as published by Folland Aircraft Ltd., the Royal Air Force, and the Finnish Air Force. Files are organized in a clear folder structure for easy reference. Instant download upon purchase.

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.