{"product_id":"yakovlev-yak-52-primary-source-technical-library","title":"Yakovlev Yak-52 — Primary-Source Technical Library","description":"\u003ch2\u003eYakovlev Yak-52 — Primary-Source Technical Library\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eYakovlev Yak-52\u003c\/strong\u003e is one of the most enduring Soviet-era military trainers ever built — a robust, tandem-seat primary trainer designed by the Yakovlev Design Bureau, combining a semi-monocoque light alloy fuselage, straight wings with a 7G-rated main spar, and a fully pneumatic auxiliary system architecture that set it apart from its Western contemporaries. This collection brings together \u003cstrong\u003e14 primary-source documents\u003c\/strong\u003e spanning flight operations, maintenance, parts, systems, and pilot training — in both English and Russian — forming the most comprehensive Yak-52 technical archive available in digital form.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003e✈️ Document Manifest — 14 Primary-Source Documents\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot's Operating Handbook\u003c\/strong\u003e — Updated 6\/1999 (English)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Definitive Pilot's Operating Handbook for the Yakovlev Yak-52\u003c\/strong\u003e — Revision 1.4, November 2003 (English)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eРЛЭ ЯК-52 — Руководство по Лётной Эксплуатации Самолёта Як-52\u003c\/strong\u003e — Москва, 2001 (Russian)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIAK-52 Flight Manual\u003c\/strong\u003e — English typewritten translation (operating limitations, systems exploitation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eЯк-52 Пособие Летчику\u003c\/strong\u003e — A.E. Korovin, Издательство ДОСААФ СССР, Москва 1987 (Russian Pilot's Handbook)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYak-52 Operations Manual\u003c\/strong\u003e — 3 sections: Main Points, Flight Preparation, Pattern Flight Carrying-Out (English, Yakovlev logo edition)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYak-52 Maintenance Manual\u003c\/strong\u003e — General Information: Prompt Maintenance, Scheduled Works, Storage (English)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYak-52 Maintenance Manual Vol. 6\u003c\/strong\u003e — Systems \u0026amp; Subsystems (Russian)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYak-52 Inspection Sheets — Scheduled Maintenance\u003c\/strong\u003e — Airframe \u0026amp; Power Plant works at 50, 100, and 200-hour intervals (English)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYak-52 Feeding Diagram Album\u003c\/strong\u003e — Electrical wiring diagrams: Power Units, Power Plant, Avionics, Radio, Instrument Panels (English)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eРуководство по Лётной Эксплуатации Самолёта ЯК-52\u003c\/strong\u003e — Russian Flight Manual with aircraft photography\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYAK-52 Parts and Units Catalogue\u003c\/strong\u003e — with full Weight \u0026amp; Balance diagram and CG data sheet (English)\u003c\/li\u003e\n\u003c\/ol\u003e\u003chr\u003e\u003ch3\u003e✈️ Aerodynamic Reports\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAirfoil Design:\u003c\/strong\u003e Clark YH wing section transitioning from 14.5% thickness at root to 9% at tip, maximising lift at high angles of attack. \u003cstrong\u003eControl Surfaces:\u003c\/strong\u003e Metal structures with fabric covering on ailerons, elevator, and rudder for light, responsive control forces. \u003cstrong\u003eLift-to-Drag Ratio:\u003c\/strong\u003e 7:1 (gear retracted) \/ 5:1 (gear deployed). \u003cstrong\u003eWing Geometry:\u003c\/strong\u003e Flat profile with less than 2° of dihedral, optimised for rapid rolling and agile turning dynamics.\u003c\/p\u003e\u003ch3\u003e⚙️ Engine Technical Notes\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePowerplant:\u003c\/strong\u003e Vedeneyev M-14P — 9-cylinder, single-row, air-cooled supercharged radial, 360 hp. \u003cstrong\u003ePropeller:\u003c\/strong\u003e Counter-clockwise rotating, two-bladed variable-pitch wooden or composite propeller via epicyclic reduction gear. \u003cstrong\u003eInverted Flight:\u003c\/strong\u003e Specialised fuel and oil system modification allows continuous inverted aerobatics for up to 2 minutes. \u003cstrong\u003ePre-Flight Safety:\u003c\/strong\u003e Prone to hydraulic lock from oil seeping into lower cylinders — propeller must be pulled through manually for 10–16 blades with magnetos off prior to starting.\u003c\/p\u003e\u003ch3\u003e🔄 Handling \u0026amp; Stability Studies\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eLoad Limits:\u003c\/strong\u003e +7G \/ −5G operational envelope. \u003cstrong\u003eRoll Rate:\u003c\/strong\u003e 120–180°\/sec, breaking sharper to the right due to engine torque. \u003cstrong\u003eStall:\u003c\/strong\u003e Power-off stall at 105 km\/h (57 knots) with pronounced wing break, typically to the right. \u003cstrong\u003eSpin:\u003c\/strong\u003e Intentional entry, highly predictable. Soviet emergency directives require bail-out if flat spin not arrested by 1,000 m (3,300 ft). \u003cstrong\u003eArtificial Feel:\u003c\/strong\u003e Spring-loaded control centering mechanisms standard; may be bypassed at overhaul facilities for advanced display pilots.\u003c\/p\u003e\u003ch3\u003e📊 Performance Data\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eImperial \/ Aviation\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNever-Exceed Speed (V\u003csub\u003eNE\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003e420–450 km\/h\u003c\/td\u003e\n\u003ctd\u003e227–243 knots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManeuvering Speed (V\u003csub\u003eA\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003e360 km\/h\u003c\/td\u003e\n\u003ctd\u003e194 knots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Level Speed\u003c\/td\u003e\n\u003ctd\u003e300–320 km\/h\u003c\/td\u003e\n\u003ctd\u003e162–172 knots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Cruise Speed\u003c\/td\u003e\n\u003ctd\u003e220 km\/h\u003c\/td\u003e\n\u003ctd\u003e118 knots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest Rate of Climb (V\u003csub\u003eY\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003e8 m\/s\u003c\/td\u003e\n\u003ctd\u003e1,378–1,800 ft\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTakeoff Run\u003c\/td\u003e\n\u003ctd\u003e200–300 m\u003c\/td\u003e\n\u003ctd\u003e660–990 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLanding Run\u003c\/td\u003e\n\u003ctd\u003e260 m\u003c\/td\u003e\n\u003ctd\u003e855 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmpty Weight\u003c\/td\u003e\n\u003ctd\u003e1,015 kg\u003c\/td\u003e\n\u003ctd\u003e2,238 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Takeoff Weight\u003c\/td\u003e\n\u003ctd\u003e1,305 kg\u003c\/td\u003e\n\u003ctd\u003e2,877 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003e🛠️ Engineering \u0026amp; Service Bulletins\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePneumatic Safety Fixes:\u003c\/strong\u003e Multiple updates govern the independent pressure vessel air line systems feeding the starter, split flaps, and differential brakes. \u003cstrong\u003eLanding Gear \u0026amp; Flap Separation:\u003c\/strong\u003e Bulletins address mechanical corrections to human-factor interface flaws, including physical blocks to prevent accidental gear retraction on the runway. \u003cstrong\u003eBelly Landing Provision:\u003c\/strong\u003e Structural directives confirm that with gear fully retracted, wheels still protrude below the wing profile — an intentional engineering choice to absorb impact loads during forced gear-up landings. \u003cstrong\u003eAileron Balance Weights:\u003c\/strong\u003e Technical updates detail fixes to aileron balance weight attachment integrity to counter high-speed flutter.\u003c\/p\u003e\u003chr\u003e\u003cp\u003eThis is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorised distributor.\u003c\/p\u003e\u003cp\u003e⚠️ \u003cstrong\u003eRegulatory Notice:\u003c\/strong\u003e Under FAA 14 CFR § 43.13 and EASA Part-M, any mechanic performing maintenance on an active aircraft must use current, manufacturer-approved revision-controlled data. This archival document does not satisfy that requirement.\u003c\/p\u003e\u003cp\u003eLiving Collections with Free Lifetime Updates — Please review our Disclaimer and Export Notice before purchasing.\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53501118710107,"sku":null,"price":50.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/yak-52-lb4-banner-3-formation.png?v=1783084401","url":"https:\/\/onlineaviationlibrary.com\/products\/yakovlev-yak-52-primary-source-technical-library","provider":"Online Aviation Library","version":"1.0","type":"link"}