# Yakovlev Yak 52 — yak52_fltrep52

> **NOT FOR FLIGHT** — source fidelity: unreviewed | operational review: none | completeness: full

> **content_gap**: Section "Circuit and Approach" item count differs between passes (5 vs 4); verify nothing was dropped.
> **content_gap**: Section "Engine Start" item count differs between passes (3 vs 4); verify nothing was dropped.
> **content_gap**: Section "Landing" item count differs between passes (4 vs 3); verify nothing was dropped.

## Cockpit Entry

- [ ] Climb onto wing using knee, then other leg, while holding canopy rail
- [ ] Walk only on anti-skid strip adjacent to fuselage

## Before Start

- [ ] Check front cockpit wall chart for priming duration
- [ ] Check air reservoir pressure
> **NOTE:** Air reservoir is good for 12 start attempts before re-charging.

## Engine Start

- [ ] Start using pneumatic system
> **NOTE:** Starting procedure varies with outside air temperature, time since last run, and oil dilution.
> **NOTE:** When warm, the Ivchenko starts with the simplicity of a typical Continental or Lycoming.

## After Start

- [ ] Check compressor re-charges air bottle after start

## Taxi

- [ ] Use rudder bars for gentle turns
- [ ] Use burst of power to energize rudder when needed
- [ ] For tighter turns, use full rudder plus stick-mounted brake lever for differential braking
> **NOTE:** With rudders neutral, braking is equal to both main wheels.
> **CAUTION:** Take care not to reach excessive taxi speed; allow engine temperature to stabilize.

## Engine Run-Up and Vital Actions

- [ ] Magnetos check
- [ ] Exercise RPM control to verify propeller governor operation
- [ ] Complete pre-takeoff vital actions using checklist
> **NOTE:** Max power (ceaseless engine function duration) is 5 minutes.
> **NOTE:** Throttle-engine lag (racing capacity) is 3 seconds max.
> **NOTE:** Max overspeed when operating throttle rapidly is 109 per cent.
> **NOTE:** Maximum allowed airspeed in level flight is conditioned by avoidance of sudden spin: 130 km/h normal flight, 170 km/h inverted. Author suspects max/min are reversed.
> **CAUTION:** Aerobatics forbidden with less than 4.5 gallons of fuel remaining.

## Takeoff

- [ ] Apply full throttle
- [ ] Expect to push on the 'wrong' foot due to engine rotation direction
- [ ] Rotate — **120 km/h (65 kt)**
> **NOTE:** Take-off roll in ISA conditions is 590 ft at maximum weight.

## After Takeoff

- [ ] Raise gear — **BELOW 200 km/h (108 kt)**
- [ ] After selecting gear up, hold lever until 'three reds', then return lever to neutral

## Circuit and Approach

- [ ] Lower gear — **AT 200 km/h (108 kt)**
- [ ] After selecting gear down, hold lever until 'three greens', then return lever to neutral
- [ ] Extend flaps — **AT/OR BELOW 170 km/h (92 kt)**
- [ ] Fly approach — **170 km/h (92 kt) slowing to 120 km/h (65 kt) at threshold**
> **NOTE:** Without flaps, forward view from rear seat is virtually nil; a curved approach is needed.

## Landing

- [ ] Keep the canopy lock pin in place in the rail hole
- [ ] Lower nose after touchdown
> **NOTE:** High wing-loading means no tendency to float.
> **NOTE:** With practice, landing roll can be as short as 300 m (985 ft).

## Forced Landing

- [ ] Leave gear retracted for dead-stick landing
> **NOTE:** Standard drill is to leave gear retracted to flatten the descent profile.
> **NOTE:** Brakes remain usable with gear up.
> **NOTE:** With gear up, the undercarriage remains partially exposed to minimize damage in a wheels-up landing.

## Reference

> **NOTE:** Performance: climb to 3,000 ft in 98 seconds; cruise 140-145 kt at 75 per cent power; fuel burn just over 13 US gal/hr at 140 kt cruise.
> **NOTE:** Endurance in excess of 2 hours with 45 minutes reserve; maximum range 275 nm at slightly reduced cruise speed.
> **NOTE:** G limits: unlimited aerobatics certified at max takeoff weight 1,305 kg.
> **NOTE:** Engine: Ivchenko M-14P 9-cylinder radial, 360 hp.
> **NOTE:** Pneumatic system used for engine starting, flaps, gear, and brakes.
> **NOTE:** RPM gauge is calibrated in percent of maximum rather than RPM.
> **NOTE:** Artificial horizon is inverted in presentation: top half of ball is brown, bottom half is blue.
> **NOTE:** Rear cockpit has controls to deliberately fail certain systems in the front cockpit.
> **NOTE:** Gear lever is pneumatic and returns to central neutral position when not required.
> **NOTE:** Brakes are operated by a stick-mounted lever; pneumatic brake noise resembles a bus/lorry stopping.

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NOT FOR FLIGHT — source fidelity: unreviewed | operational review: none | completeness: full  
Source: Yakovlev/Yak 52/yak52_fltrep52.txt  
Rights: licensed  
Checklist hash: 0f28b1a9f2d5130aba7a6dcd55653cced8366193b967dd41ac34fcfede2fdddb  
Verify against the aircraft's own approved documentation before use.