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LET BLANIK L-13, Инструкция летчика

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 20

WARNING:

 After emergency release of the cockpit hood, it may damage the 

tailplane 

and so on no account should it be released 

while airborne unless the sailplane 

i

s

about to be abandoned.

Fig. 11. Jett

i

son

i

ng of c

o

ckpit hood of sa

i

lplane Fig. 12. Jettisoning of cockpit hood o

f s

a

i

lplane

n

o

t

 fitted with hood emergency release       fitted with emergency release

 mechanism. mechanism,

Содержание BLANIK L-13

Страница 1: ...PILOT S NOTES FOR THE BLANIK L 13 SAILPLANE 2nd REVISED EDITION 1967 AERONAUTICAL WORKS LET KUNOVICE CZECHOSLOVAKIA Czechoslavak Aeronautical Works ...

Страница 2: ...2 PILOT S NOTES FOR THE BLANIK L 13 SAILPLANE ...

Страница 3: ...ic instruction For further technical details about the sailplane reference should be made to the publication Technical Manual of the L 13 Sailplane Any amendment to this publication will be issued by the manufacturer in the form of Service Bulletins The incorporation of any such amendment should be recorded in the Amendment List given on page 4 ...

Страница 4: ...iate indicating either an Information or a Service bulletin should be entered in the column headed Class of Bulletin Item No Bulletin No Class of Bulletin Alternating made in the following paras Carried Out by 1 L 13 024 Service 10 12 Editor ...

Страница 5: ...n be moved comfortably to the full extent of its travel without either foot having to be removed from the pedals III The position of the rudder pedals in the front cockpit can be adjusted by means of the handle 25 on the cockpit floor just in front of the base of the control column In the rear cockpit adjustment to one of three possible positions may be obtained by first removing the locking pin o...

Страница 6: ...tificial Horizon 15 A H aircraft silhouette height adjusting knob 16 A H caging knob 17 Altimeter 18 Altimeter barometric pressure adjustment knob 19 A H on off push button 20 Turn indicator switch 21 Compass correction card 22 Battery circuit breaker on sailplanes up to 21st series only 22a Battery circuit breaker on sailplanes of 22nd series and upwards 23 Clock 24 Ventilator 25 Rudder pedal adj...

Страница 7: ...he nose hook which embodies a back release mechanism also may be used for winch launching Partial flap may be used during winch launching if desired in order to reduce the take off run A speed of 54 knots 100 km hr should not be exceeded if the flaps are extended or 65 knots 120 km hr with the flaps retracted The recommended speed for winch launching is 43 54 knots 80 100 km hr Fig 2 Rear Cockpit ...

Страница 8: ...er 22 or 22a as appropriate and press the push button 19 This should be carried out prior to take off with the instrument caged i e red warning flag showing When the gyro is functioning correctly a light will appear in a slot in the dial approximately 1 1 2 minutes after the instrument is switched on To uncage pull the right hand knob 16 when the warning flag will disappear The instrument should n...

Страница 9: ...is approximately 3 5 sees per revolutions and the attitude 60 to 70 nose down Because a speed of 60 knots 110 km hr may be exceeded when spinning especially during the recovery it is particularly important to ensure that the flaps are up and secured before entering a spin WARNING IAS errors Because of interference with the airflow in the vicinity of the static vents especially when a pot pitot hea...

Страница 10: ...retracted 8 AEROBATICS a LIMITATIONS When flown solo loops stall turns rolls off the top of a loop half rolls and loops slow rolls and inverted flight are permitted in the L13 sailplane When flown dual loops stall turns rolls off the top of a loop and half rolls and loops only are permitted Slow rolls and inverted flight must not be attempted dual In a dive the rate of acceleration of this sailpla...

Страница 11: ...e of the sailplane by slight backward movement of the control column taking care not to apply excessive g forces and maintain this rate of backward stick movement throughout the whole of the loop but not making use of more than about 60 of the control column full travel When the inverted position has been reached the speed will be low and care should be taken not to stall the sailplane After passi...

Страница 12: ...12 ...

Страница 13: ... the sailplane rolling to the inverted position As the nose approaches the reciprocal heading centralize the rudder and keeping the wings level laterally by use of ailerons ease out of the resulting dive taking care not to apply excessive g e ROLL OFF THE TOP OF A LOOP Begin this manoeuvre as in the first half of a loop but at the higher initial speed of between 97 and 103 knots 180 190 km hr when...

Страница 14: ...5 30 deflection is sufficient t keep the nose above the horizon As bank increases beyond 90 the rudder should be centralized gradually and at the same time the control column eased forward so as to maintain the position of the nose above the horizon When the sailplane is inverted the ailerons should be centralized and the control column eased back so as to complete the second half of a loop It is ...

Страница 15: ...when the sailplane is being flown solo and being one of the most difficult acrobatic manoeuvres should not be attempted until the pilot is fully proficient in the half roll and loop roll off the top of a loop and inverted flying Choose a point on the horizon on which to keep straight and having attained a speed of 81 knots 150 knr hr raise the nose to a position about 25 above the horizon and hold...

Страница 16: ...s 140 km h Maximum winch launching speed VW IAS 65 kts 120 km h Maximum wing flaps extended speed VY IAS 60 kts 110 km h Design manoeuvring speed VA EAS 78 kts 145 km h Stalling speed with extended wing flaps at 1040 lb 472 kp AUW IAS 30 kts 55 km h Stalling speed with retracted wing flaps at 1040 lb 472 kp AUW IAS 32 kts 60 km h Minimum rate of descent at 1040 lb 472 kp AUW 160 ft min 0 82 m sec ...

Страница 17: ... with a length of about 80 to 100 ft 25 30 metres 11 LANDING Normally the landing should be made with the landing wheel down After selection check for correct locking by a firm reaward pull on the operating lever without turning the handle inboard However no damage should occur if the landing is made with the wheel up and indeed this procedure is recommended when landing on very soft ground The wh...

Страница 18: ...p o MAXIMUM PERMISSIBLE ALL UP WEIGHT HQ2 Ib 500 kp d CENTRE OF GRAVITY LIMITS 23 to38 MAC e LOADING CHART WITH STANDARD EQUIPMENT ONLY Occupants Ib kp Item No Item 2 persons 1 person 1 Pilot in front seat 176 176 154 154 176 154 154 154 Ib 80 0 80 0 70 0 70 0 80 0 70 0 70 0 70 0 kp 2 Front parachute or 22 22 22 4 22 22 22 4 Ib cushion 10 0 10 0 10 0 1 8 10 0 10 0 10 0 1 8 kp 3 Pilot in rear seat ...

Страница 19: ...o 13 ABANDONING THE SAILPLANE a Cockpit hood installations not fitted with an emergency release lever refer to Fig H I Release the hood lock II Open the hood fully III Force the hood forward until the locking wire on the centre hinge is cut and the hood falls away IV Release the safety belt and abandon the sailplane b Cockpit hood installations fitted with emergency release lever refer to Fig 12 I...

Страница 20: ...d so on no account should it be released while airborne unless the sailplane is about to be abandoned Fig 11 Jettisoning of cockpit hood of sailplane Fig 12 Jettisoning of cockpit hood of sailplane not fitted with hood emergency release fitted with emergency release mechanism mechanism ...

Страница 21: ...21 Annex 1 AERODYNAMIC CORRECTION TO AIRSPEED INDICATOR British System of Units NOTE This chart is not applicable when a pot pilot is fitted ...

Страница 22: ...22 Annex 1 AERODYNAMIC CORBECTION TO AIRSPEED INDICATOR Metric System of Units NOTE This chart is not applicable when a pot pilot is fitted ...

Страница 23: ...23 Annex 2 PERFORMANCE CHARACTERISTICS British System of Units ...

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