# Yakovlev Yak-12M — YAK_12M_checklist

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

## External

- [ ] Kick the tyres, nothing about to fall off etc.
- [ ] Oil level > 8 litres.
- [ ] Fuel levels OK.
- [ ] Turn engine 9 blades; watch for the oil.

## Internal / starting

- [ ] All switches off, mags off etc.
- [ ] Fuel OK.
- [ ] Air on.
- [ ] Brakes on.
- [ ] Fuel on. — **ON**
- [ ] Mixture rich. — **RICH**
- [ ] Close oil cooler.
- [ ] Close carb heat.
- [ ] Open Gills.
- [ ] Flaps up.
**For cold start;**
- [ ] If you have an assistant, 9 blades, 1 prime each.
- [ ] Otherwise, 8 primes, suck in, then 2 more.
**For warm start,**
- [ ] 1 prime per 10° below 100 cylinder head temp.
- [ ] Master switch on.
- [ ] Generator on.
- [ ] DC converter.
- [ ] Starter on.
- [ ] Set throttle.
- [ ] Press starter, when engine turns correct way, mags on both.
- [ ] When engine fires, set throttle and prime as necessary.
- [ ] Set 1000 RPM. — **1000 RPM**
- [ ] Close Gills until cylinder head temp rises, then open as necessary.
- [ ] Open oil cooler as necessary.

## Before Taxi

- [ ] Switches on as necessay.
- [ ] Radio on and set.
- [ ] Set DI to compass
- [ ] Set altimeter.
- [ ] Uncage artificial horizon.
- [ ] Do not taxi until oil temp in green.

## Taxi

> **NOTE:** Note; tail wheel unlocked when stick forward.
- [ ] Check brakes and steering.
- [ ] Check pneumatic pressure maintained.
- [ ] Check turn and slip move correctly.
- [ ] Check DI moves correctly.

## Engine checks

- [ ] Oil temp in green.
- [ ] Cylinder head temp in green.
- [ ] Set 2000 RPM — **2000 RPM**
- [ ] Check mags.
- [ ] Exercise prop.
- [ ] Check carb heat.
- [ ] Set idle; engine continues to run.
- [ ] Set 1000 RPM. — **1000 RPM**

## Pre take off vital checks

- [ ] Mags on both.
- [ ] Trim set.
- [ ] Flaps to 15° — **15°**
- [ ] Fuel on and sufficient.
- [ ] Mixture fully rich.
- [ ] Starter covered.
- [ ] Primer locked.
- [ ] Prop fully fine.
- [ ] Oil temp green.
- [ ] Cylinder head temp green.
- [ ] Set DI to compass.
- [ ] Switches on as necessary.
- [ ] Controls full and free.
- [ ] Hatches and harness’ secure.

## Take off

- [ ] Set full power, then back to 7.5 boost.
- [ ] Set prop to 2000 RPM. — **2000 RPM**
- [ ] Take off with tail up or 3 point.

## Climb

- [ ] boost, 2000 RPM.
- [ ] Flaps up above 300 feet.

## Cruise

- [ ] boost, 1860 RPM, no flaps.

## Descent

- [ ] Reduce throttle.
- [ ] Flaps extend below 140kmh
- [ ] Final approach 110kmh, Prop to fine
> **NOTE:** Note land with stick back to ensure tail wheel locked - risk of ground loops.

## Close down

- [ ] Brakes on.
- [ ] Set 1000 RPM — **1000 RPM**
- [ ] Check mags.
- [ ] Flaps up.
- [ ] Close carb heat.
- [ ] Unnecessary electrics off.
- [ ] Set idle.
- [ ] Mags off.
- [ ] Open gill flaps.
- [ ] Electrics off.
- [ ] Close pneumatic valve.
- [ ] Stick free and brakes off for manoeuvring.
- [ ] Drain water trap

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NOT FOR FLIGHT — source fidelity: unreviewed | operational review: none | completeness: full  
Source: Yakovlev/Yak-12M/YAK_12M_checklist.txt  
Rights: licensed  
Checklist hash: a8014c5a64be2cc0348f752afc44b02dcd58b9738e8ef998f99b00046934bc12  
Verify against the aircraft's own approved documentation before use.