Yakovlev Yak-18T — Russian Aircraft Technical Library
The Yakovlev Yak-18T is a rugged, four-seat Soviet training aircraft powered by the Vedeneyev M-14P nine-cylinder air-cooled radial engine producing 360 hp. Designed as an ab-initio trainer for Aeroflot pilots, the Yak-18T combines a robust pneumatic systems architecture with genuine aerobatic capability — certified for structural loads of +6.4 G / −3.2 G at an aerobatic gross weight of 1,510 kg. Its complex radial powerplant, high-pressure pneumatic landing gear and brake system, and demanding weight-management requirements make primary-source documentation essential for any serious researcher, restorer, or simulator developer.
This collection assembles 15 primary-source Russian factory and regulatory documents — the most comprehensive Yak-18T archival library available in digital form. Spanning flight operations, maintenance schedules, technical instructions, and powerplant documentation, it covers the full operational and maintenance envelope of the aircraft and its M-14P engine.
Aircraft Engineering Profile
- Maximum Speed: 300 km/h (161 kt) permitted diving speed; 262 km/h max level speed
- Cruise Speed: 180–210 km/h (97–113 kt)
- Rate of Climb: 5 m/s (984 fpm) standard; up to 2,000 fpm depending on load
- Stall Speed: 120 km/h clean / 112 km/h gear & flaps extended
- Take-off / Landing Roll: 200 m / 250 m
- Service Ceiling: 4,000 m (13,123 ft) — no onboard oxygen system
- Structural G-Limits: +6.4 G / −3.2 G at aerobatic weight of 1,510 kg
- Max Take-off Weight: 1,650 kg (utility/transport); 1,510 kg (aerobatic/spin)
- Airframe Life Limits: 3,500 flight hours or 15,000 landings
Engine — Vedeneyev M-14P
- 9-cylinder air-cooled radial, 360 hp
- V-530TA-D35 two-bladed constant-speed propeller
- Total oil capacity: 16 litres (aerobatics minimum: 9 L; maximum fill: 13 L)
- Fuel system: two 90-litre wing tanks + 3.5-litre fuselage collector tank with weighted flexible outlet for negative-G fuel delivery
Key Service Bulletins
- SB 032-DK — Mandatory wing centre-section reinforcement (13 variants)
- SB 033-DK — High-pressure emergency air bottle support cup replacement
- SB 035-DK — AM-800K landing gear microswitch rework & engine cowl gills control arm reinforcement
Document Manifest — 15 Documents
Flight Operations (2 documents)
- Самолет Як-18Т — Инструкция по эксплуатации (Yak-18T Aircraft — Operating Instructions). Early edition.
- РЛЭ — Руководство по лётной эксплуатации самолёта Як-18Т с двигателем М-14П (Flight Manual, Yak-18T / M-14P). Министерство гражданской авиации СССР, Москва 1977. Approved by Deputy Minister B.D. Grubiy, effective 1 July 1977.
РО — Регламент технического обслуживания / Maintenance Schedule (3 documents)
- Часть 1 — Планер, силовая установка, авиационное и радиоэлектронное оборудование — Оперативные формы (Airframe, Powerplant, Avionics & Radio Equipment — Operational Maintenance Forms). Государственная служба гражданской авиации, Москва 2003.
- Часть 2 — Периодические формы (Periodic Maintenance Forms). Государственная служба гражданской авиации, Москва 2003.
- Часть 3 — Трудоёмкие формы «ТО-1000» и «ТО-2000» (Labour-Intensive Maintenance Forms TO-1000 and TO-2000). Государственная служба гражданской авиации, Москва 2003.
ТУ — Технологические указания / Technical Instructions for Scheduled Maintenance (5 documents)
- Часть 1 — Оперативные формы — Планер, силовая установка, авиационное и радиоэлектронное оборудование (Operational Maintenance Forms — Airframe, Powerplant, Avionics & Radio Equipment). Государственная служба гражданской авиации, Москва 2003.
- Часть 2, Выпуск 1 — Периодические формы — Планер, управление самолётом и двигателем, посадочный щиток, воздушная система, шасси (Periodic Forms — Airframe, Flight & Engine Controls, Landing Flap, Pneumatic System, Undercarriage). Министерство транспорта РФ / Федеральная служба по надзору в сфере транспорта, Москва 2004.
- Часть 2, Выпуск 2 — Периодические формы — Силовая установка (Periodic Forms — Powerplant). Москва 2004.
- Часть 2, Выпуск 3 — Периодические формы — Авиационное и радиоэлектронное оборудование (Periodic Forms — Avionics & Radio-Electronic Equipment). Москва 2004.
РТЭ — Руководство по технической эксплуатации / Technical Operating Manual (1 document)
- РТЭ — Руководство по технической эксплуатации самолёта Як-18Т (Technical Operating Manual, Yak-18T).
Powerplant — M-14P (1 document)
- М-14П — Описание и техническое обслуживание (M-14P Radial Engine — Description & Maintenance Manual).
РЛЭ — Additional Flight Manual Edition (1 document)
- РЛЭ — Руководство по лётной эксплуатации самолёта Як-18Т с двигатенлем М-14П (Flight Manual, alternate edition). Государственная служба гражданской авиации.
Structural Reference (1 document)
- Як-18Т — Конструкция (Yak-18T — Airframe Construction Reference). Part 1.
⚠️ Regulatory Notice: 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.
This 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.
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