32421c321439645976b38f7269a0861ee9f7a84d98daed428c418a275ff6fd1f Section "Cruise Performance" item count differs between passes (3 vs 4); verify nothing was dropped.

Canopy Do not use the overhead toggle to close the canopy; that releases the canopy securing pins and allows the whole canopy to fall off the rear of the fuselage. Use the little knob at the forward corner to close the canopy Make sure the canopy is fully home before takeoff The canopies are allowed to be opened in flight.

Radial engine priming and start Engine is turned over pneumatically. Pull-through to clear the bottom cylinders of oil still has to be done if the aeroplane has been left standing for a few hours. Charge the internal priming cylinder with fuel using the lever on the lower right of the cockpit Press the firing button on the left of the instrument panel

Taxying the Yak C11 is straightforward; the aeroplane feels heavy on the ground. Toe brakes on this example make steering easier. Make sure cowl flaps are open Do not take off with cowl flaps closed. There are two types of Yak pilots — the ones who have taken off with the cowl flaps closed, and the ones who haven't yet but will.

Line up and allow the aircraft to run forward a few feet to make sure the automatic tailwheel lock engages with aft stick before applying full power Check Ts and Ps before rotation Rotate at 90 knots 90 KT Once airborne, raise the gear Bring power back to 75% with the throttle and rpm lever Climb at 135 knots 135 KT At max weight and max power, VSI will show 1,600 fpm 1600 FPM

At full throttle at 1,000 feet, speed is 225 knots TAS and fuel burn is 50 gallons per hour 225 KT / 50 GPH At 75% power, speed is 200 knots and fuel burn is 33 gallons per hour 200 KT / 33 GPH At 140 knots, fuel burn is 16 gallons per hour 140 KT / 16 GPH

The Yak C11 is typically difficult to slow down and takes a while to get the airspeed low enough to meet the gear and flap limits, even with the throttle fully closed. Gear limit is 163 knots 163 KT Flap limit is 135 knots 135 KT

The best approach is a curved one; visibility over the nose is poor, and non-existent from the rear seat. Make a positive landing flare After touchdown, bring the stick back before applying large brake pressure to prevent a noseover

The aeroplane exhibits a pronounced starboard wing drop in all configurations and power settings; severity depends on applied power. There is little warning buffet. The aeroplane can flick into a steep, mind-numbing spin. Spin recovery is predictable and it comes out cleanly within 90 degrees of rotation.

Vne 323 KT Length 8.56 M 70% cruise 195 KT Max takeoff weight 2,150 KG Stall speed 83 KT Takeoff run 575 M Wingspan 9.53 M Engine ASH 21, 700 HP