PZL Bielsko SZD-50-3 PUCHACZ Technical specifications

TWO-SEATER SZD-50-3 "PUCHACZ"
GLIDER
F L I G H T M A N U A L
Issue 3 ~ Dece~ber 1985
Thia instruction is the part of the
Airworthiness Certific~te of the glider of:
Serial No E:~Q~3
Reg.No ••••••.•••••
This ls the translation of the original
Polish Manual approved by Central
Ad~inistretion of Civil Aviation /pages 1-3
to5-f7 I
Date
Translated by.
Wieslaw Stafiej. o.sc.
Urul<.:OWPT Uiclako-Diala /Z000/466/'dZ

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C 0 N T E N T S
1 i> LIST OF REVISIONS
2. OPERATI~~ LIMITATIONS
2.1. Permissible airspeeds
2 •. 2. Limit load factors
2.3. Colour markings of airspeed
indicator dial
2.4. Towing cable safety link
2.5. Restrictions
2.6. Masses
2.7. Permissible range of e.g. location
2.a. Table of weighing the glider
2.9. Graphical checking of c.g.location
2o10oPlacards and inscriptions.
30 PERFORMANCES
4a GLIDER OPERATION
4o1. Pre-flight inspection
4.2. Cockpits and their arrangements
4.3. Service before take-off
4.4. Controlling
4.5. Aerobatics
4.6. Danger and emergency conditions
4.7. Assembling and disassembling
t.;__~~--------------------------------------------~-
0 r uk: OW PT Bielako-Diala / Z.000/466/82.

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5. DRAWINGS AND DIAGRAMS
1. SZ0-50~3 "PUCHACZ" glider
2. Instalhtion of board instruments
Glider with two instrument panels
2a.Instalhtion of board instruments
Glider with one instrument panel
3. Wiring diagram of electric turn
indicator
4. Speed polar
5. Wings-to-fuselage assembling
6. Assembling of hori%ontal tailplane
7. Colour markings of airspeed
indicator dial
APPENDIX
Individual loading plan
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1_ LIST OF REVISIONS
2
NOTE;
The place, in which the text has been
revised
0
is marked with vertical line
on left side of text and with the
number of revision.
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Druk:OW PT IHc:lsko-lliala / 2.000/ 466/ 'd2.

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2. FLIGHT LIMITATIONS
_._. ____ _. .............. _______ ...
2.1. Parmiesibl! air!peeds IAS:
kts
VNE - max.permissible
airspeed in smooth air 116
- ~ax.perNiseible
airspeed in gust
conditions
- ~ano~uvring airspeed
/speed of full control
surf ace deflection/
- ma~.permissibla
aerotowing airspeed
- max.permissible winch
launching airspeed
- maxopermiasible
airspeed for. extending
and flight ~ith
81
81
59
airbrake extended 116
~ ~ax.permissible airspeed
for inverted flight
/in s~ooth air only/ 97
2.2. Limit load fsct~rs
- positive
• • • • • • • • • • • • • • • • • •
- negative
••• 0 ••• ., ••••••••••
+ 5,3 g
- 2,65 g

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2-2
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2.3. Colour ~arkings of airspeed indicator
dial
v
51
/stalling speed/
radial green line at
v
51
7 v8 /normal operation
range/- green
kts
38
ere at from 38
to 06
v8-VNE- higher attention
range/yellon arc from 86
to 116
VNE radial red line at
2.4. !owi~g cable safety link
The safety link of ultimate
of 1520 lbf.S ! 10 % should be
on the toning cable.
2.5. Restrictions
116
stranoth
-
installed
- SOLO-FLIGHT ALLOWED C~ THE FRONT SEAT J
ONLY.
- GLIDER NOT APPROVED FOR NIGHT FLYING
- FLYING UNO.ER ICING CONDITIONS N01
RECOMMENDED
c:. WINCH LAUNC.YING W~ITH C.G. HOOK ONLY
- INVERTED FLIGHT, ROLL AND ASSOCIATED
AEROBATICS ACC. TO ITEM 4.5.2. ALLOi!ED
IN THE SMOOTH AIR ONLY AND WITH THE
FLOOR BELT
OF PILOT'S HARNESS FASTS~BJ
FLICK ROLL ALLOWED FOR TWO PERSDUS
CREW ONLY.
WHEN PERFORMED BY OCCUPANT OF REAR
SEAT THE REAR INSTRUMENT PANEL IS
OBLIGATORY.
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2.6. Masses
kg
- Max.permissible empty glider
mass with standard equipmentxf ••••
:z
I
-where the mass of fuselage and
tail unit I without the moveable
a balancing weights/ is , · .. • • · • • • •••••
- Max.permissible load mass
/see page I
-t1Bx. permissible load mass in
the luggage compartment
/see page I
- Max.per~iseible load mass on
front seatin:
370
193
- normal flight ••••••••••••••••• 110
- inverted flightxx/
two persons crew •••••••••••••• 95
- Ma~.permissible all-up mass in
- normal fli9ht •••••••••9•••••• 570
- inverted flight ···~··········· 540
.. ..,eD .......... flDa:a.-cas.. ......... _ ----- --.. ...... __ _
x/ The standard equ1pment consits of:
1. Instrument panel /at front seat only/
with airspeed indicator, altimeter~
variometer with compensatorg slip and
turn indicatorg compass.
2. Two towing books of SZD-III or TOST
type.
3. Two sets of four-belts pilot•s harness.
4. Two sets of seat pillows.
5. Assembling wrench
6. First aid kit.
xx/ Inverted flight, the aerobatic
manoeuvres listed in item 4.5.2.
includedo
CJrui<:OW PT liielako-Biala / 'l..000/ 4bb/ H2

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2-4a -
LO~D IN LUGGAGE COMPARTMENT
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Max. load in luggage compartment is 20 kg.
The above load comprises the fixed
equipment /battery, transceiver block etc./
and a hand luggage. The mass of luggage
uniformly distributed in the compartment
does not contribute to the c.g location of
glider in flight.
The hand luggage s~ld be immobilized by
means of cord or belt using the six
removable lugs on compartment floor.
2.7. Allowed range of c.g.location /in respect
to wing root leading edge/:
- empty glider without the balancing
weights: o.610 to 0,635 m
- glider in normal flight:
09 092 to 00 333 m
what corresponds to the range of:
23,5 to 44,0 per cent of M.SoC.
- glider in inverted flight:
o.133 to 0,333 m
what corresponds to the range of:
27,0 to 44,0 per cent of M.s.c.
- for performing the flick-roll:
0.133 to 0.204 m
what corresponds to the range of:
27.0 to 33
00
per,cent of M.S.Co
-NOTE;~- To defirie-th-e
11
r~iaximum permissible loading mass
11
use the formulas given in item 2 .. 8.
, .
Example: The empty glider with standard equipment
2 /without balancing weights/mass is: Qc=370kgi:
Both wings mass is Q
9=172 kg .According
to the
formula: [763+Qs-2Qcl /item 2.8/maximum
loading mass ~ 763+172-740=~kg
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