Cessna Hawk XP Owner's manual

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PILOT'S · OPERATING HANOBOO · -"1~ •.
. - ·~ -
Hawk XP
CESSNA MODEL R172K
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NORTHEAST REG ION , CAP
-~-

t !
SPEED:
Maximum at Sea Level . . . . . . . . . . . . .
8ruise, 80% Power at 6000 Ft . . . . . . . . . .
CRUISE:
Reco mme nded Lean Mixtur e w ith fuel allowance for
engine start, taxi, takeof f, c limb and 45 minutes
rese rve at 45% power .
80% Pow
er at 6000 Ft . . . . Ran ge
49 Ga ll o ns Usable Fuel Time
Maximum Range at 10, 000 Ft Ran ge
49 Gallons Usable Fuel Time
RATE OF CLIMB AT SEA LEVEL
SERVICE CEILING , . . . .
TAKEOFF PERFORMANCE:
Ground Ro ll . ·. . . . .
Total Distance Over 50-Ft Obs ta cle
LANDING PERFORMANCE:
Ground Roll . . . . . . . . . . . ..
Total Distance Over 50- Ft Obstacle
ST ALL SPEED (CAS):
Flaps Up, Power Off . .
Flaps Down, Power Off .
MAXIMUM WEIGHT . .
..
STANDARD EMPTY WEIGHT:
Hawk
XP . . . . . .
Hawk
XP II .. .. .
MAXIMUM USEFUL LOAD:
H
awk XP . .. . . .
Hawk
XP ff '.. , . .-:o . ·.t ..
BAGGAGE ALLC' ,, ~--;..N tz ~ ·- . ::°J.: •
WING LOADING: ':Poun. ds/Sq Ft
POWER LOADING: Po unds / HP
FUEL CAP ACI TY: To tal .. .
OIL CAPACITY . . ... . .
ENGINE: T eledyne Continental , Fue l In jec tion
195 BHP at 2600 RPM
PROPELLER: Con stant Speed, Diameter . . .
....,, 08'1-13- RAND - 1 200 - 2/77
L
133 KNOTS
130 KNOTS
480
NM
3. 7 HRS
575 NM
6.1 HRS ·
870
FPM .
17, 000
FT
800 FT ·
1360
FT
620 fi'T
12 .' lO FT
53 KNOTS .1
46 KNOTS
2550 LBS
1549
-LBS
1573 LBS
1001 LBS
977 LBS .
200 LBS
14.7
13. 1
52 :GAL.
8 QT S
I0 -36 0- K
76 IN.
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SECTION 2
LIMIT A TIO NS
~IRSPEED LIMITATIONS
CESSNA
MODEL R172K
Airspeed limitations and their operational significance are shown
in figure 2-1.
SPEED KCAS KIAS REMARKS
VNE Never Exceed
Speed
161
163
Do not exceed this speed in
any operation.
VNO Maximum Structural 127 129
Do not exceed this speed
Cruising Speed except in smooth air,
and
then only with caution.
VA
Maneuvering Speed:
2550 Pounds 103 105
Do not make full or abrupt
2150 Pounds 94 96 control movements above
1750 Pounds 85 87 this
speed .
VFE
Maximum Fl ap Extended 84 85 Do
not exceed th is speed
Speed
with flaps down.
Maximum Window
Open
161 163 Do
not exceed this speed with
Speed
windows open.
Figure 2-1. Airspeed Limitations
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CESSNA
MODEL R172K
SECTION 2
LIMIT A TIO NS
AIRSPEED INDICATOR MARKINGS
Airspeed indicator markings and their color code significance are
shown in figure 2-2.
KIAS VALUE
SIGNIFICANCE
MARKING
OR RANGE
46 -85 Full Fl
ap Operating Range.
Lower
White
Arc
limit is maximum weight Vs in
landing configuration. Uppe?
limit
is maximum speed permissible with
flaps extended.
54 -129 Normal Operating
Range.
Lower limit
Green Arc
is maximum weight Vs at most forward
C.
G. with flaps retracted. Upper
limit
is maximum structural cruising speed.
Yellow Arc
129 -163 Operations must
be conducted with
caution and only in smooth air.
Red Line 163 Maximum
speed for all operations.
Figure 2-2. Airspeed Indicator Markings
POWER PLANT LIMITATIONS
Engine Manufacturer: Teledyne Continental.
Engine Model Number: I0-360-K.
Engine Operating Limits for Takeoff and Continuous Operations:
Maximum Power: 195 BHP.
Maxim um Engine Speed: 2600 RPM.
Maximum Cylinder Head Temperature: 238°C (460°F).
Maximum Oil Temperature : 116°C (240°F).
Oil Pressure , Minimum: 10 psi.
Maximum: 100 psi.
Fuel Pressure, Minimum: 3 psi.
Maximum: 17 psi (17 gal/hr).
Propeller Manufacturer: McCauley Accessory Division.
Propeller Model Number: 2A34C203/90DCA-14.
Propeller Diameter , Maximum: 76 inches.
Minimum: 74.5 inches.
Propeller Blade Angle at 30 Inch Station , Low: 12.0°.
High : 25.1 °.

SECTION 2
LIMIT A TIO NS
CESSNA
MODEL R172K
POWER PLANT INSTRUMENT MARKINGS
Power I?lar:t instrument markings and their color code significance
are shown in figure 2-3.
RED LINE GREEN ARC
RED LI NE
INSTRUMENT
MINIMUM
NORMAL
MAXIMUM
LIMIT
OPERATING
LIMIT
Tachometer - - -2200 -2600
RPM
2600 RPM
Manifold Pressure -- - 15 -25 - - -
in. Hg
11
Oil Temperature - - -
100° - 240°F
240°F
Cylinder Head -- -
300° - 460°F 460°F
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Temperature
Fuel
Flow (Pressure)
(3 psi)
4.5 -11.5 gal/hr
17 gal/hr
(17 psi)
Oil
Pressure 10 psi
30 -60 psi
100 psi
Figure 2-3. Power Plant Instrument Markings
WEIGHT LIMITS
NORMAL CATEGORY
Maximum Takeoff Weight: 2550 lbs.
Maximum Landing Weight: 2550 lbs.
Maximum Weight in Baggage Compartment:
Baggage Area 1 (or passenger on child's seat)-Station 82 to
2-6
108: 200 lbs. See note below.
Baggage Area 2 - Station 108 to 142: 50 lbs. See note below.
NOTE
The maximum combined weight capacity for baggage
areas 1 and 2 is 200 lbs.
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CESSNA
MODEL R172K
SECTION 2
LIMIT A TIO NS
UTILITY CATEGORY
Maximum Takeoff Weight: 2200 lbs.
Maximum Landing Weight: 2200 lbs .
Maximum Weight in Baggage Compartment: In the utility category, the
baggage compartment and rear seat must not be occupied.
CENTER OF GRAVITY LIMITS
NORMAL CATEGORY
Center of Gravity Range:
Forward: 35.0 inches aft of datum at 1950 lbs. or less , with straight
line variation to 41.0 inches aft of d' atum at 2550 lbs.
Aft: 47.3 inches aft of datum at all weights.
Reference Datum: Lower portion of front face of firewall.
UTILITY CATEGORY
Center of Gravity Range:
Forward: 35.0 inches aft of datum at 1950 lbs. or less, with straight
line variation to 37.5 inches aft of datum at 2200 lbs.
Aft: 40.5 inches aft of datum at all weights.
Reference Datum: Lower portion of front face of firewall.
MANEUVER LIMITS
NORMAL CATEGORY
This airplane is certificated in both the normal and utility catego-
ry. The normal category is applicable to aircraft intended for non-aero-
batic operations. These include any maneuvers incidental to normal
flying , stalls (except whip stalls), lazy eights, chandelles, and turns in
which the angle of bank is not more than 60°. Aerobatic maneuvers ,
including spins, are not approved.
UTILITY CATEGORY
This airplane is not designed for purely aerobatic flight. Howev er,
in the acquisition of various certificates such as commercial pilot , in-
strument pilot and flight instructor, certain maneuvers are required by
the FAA . All of these maneuvers are permitted in this airplane when
operated in the utility category.
2-7

SECTION 2
LIMITATIONS
CESSNA
:MODEL R172K
In the utility category the bag drear seat
t t b . '
gage compartment an
mus no e occupied. No aerobati roved except
those listed below: c maneuvers are app
MANEUVER
Chandelles .
Lazy Eights
Steep Turns
Spins ...
Stalls (Except Whip Stalls)
RECOMMENDED ENTRY SPEED*
110 knots
110 knots
105 knots
: Sl~w· Deceleration
. Slow Deceleration
*Abrupt use of the controls is prohibited above 105 knots .
Aerobatics that may impose high loads should not be attempted.
T~e impo.rtant thi_ng to bear in mind in flight maneuvers is that the
airp~ane is clean m aerodynamic design and will build up speed quick-
ly with the nose down . Proper speed control is an essential require-
ment for execution of any maneuver, and care should always be exer-
cised to avoid excessive speed which in turn can impose excessive
loads . In the execution of all maneuvers, avoid abrupt use of controls.
Intentional spins with flaps extended are prohibited.
FLIGHT LOAD FACTOR LIMITS
NORMAL CATEGORY
Flight Load Factors (Gross Weight -2550 lbs.):
*Flaps Up . . . . . +3.Sg, -1.52g
'<Flaps Down . . . . . . . . . . . · · · · · · . . . +3.0g
'<The
design load factors are 150% of the above, and in all
cases, the structure meets or exceeds design loads.
UTILITY CATEGORY
Flight Load Factors (Gross Weight -2200 lbs.):
*Flaps Up . . . . . . . . . · · · · · · · · · +4.4g, -1.76g
*
Flaps Down . . . . . . . . . · · · · · · · · · · · +3 . 0g
*The design load factors are 150% of the above, and in an
cases, the structure meets or exceeds design loads.
2-8
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CESSNA
MODEL R172K
SECTION 2
LIMITATIONS
KINDS OF OPERATION LIMITS
The airplane is equipped for day VFR and may be ~quipped for
night VFR and/ or IFR operations. FAR Part 91 estabhshes the . mm-
imum required instrumentation and equipment for these. ope~at~ons.
The reference to types of flight operations on the operatmg ~1m1tat1ons
placard reflects equipment installed at the time of Airworthmess Cer-
tificate issuance.
Flight into known icing conditions is prohibited.
FUEL LIMITATIONS
2 Standard Tanks: 26 U.S. gallons each.
Total Fuel: 52 U. S . gallons.
Usable Fuel (all flight conditions): 49 U.S. gallons.
Unusable Fuel: 3.0 U.S. gallons.
NOTE
To ensure maximum fuel capacity when refueling, pl~ce
the fuel selector valve in either LEFT or RIGHT pos1t10n
to prevent cross-feeding.
NOTE
Takeoff, climb and land with the fuel selector valve
handle in the BOTH position.
Approved Fuel Grades (and Colors):
100LL Grade Aviation Fuel (Blue).
100 (Formerly 100/ 130) Grade Aviation Fuel (Green) .
2-9

SECTION 2
LIMITATIONS
CESSNA
MODEL R172K
In the utility category , the baggage compartment and rear seat
must n?t be occupied. No aerobatic maneuvers are approved except
those listed below:
MANEUVER
Chandelles .
Lazy Eights
Steep Turns
Spins
Stalls (Except Whip Stalls)
RECOMMENDED ENTRY SPEED *
110
knots
110 knots
105 knots
. Slow Deceleration
. Slow Deceleration
*Abru pt use of the controls is prohibited above 105 knots.
Aerobatics that may impose high loads should not be attempted .
The important thing to bear in mind in flight maneuvers is that the
airplane is clean in aerodynamic design and will build up speed quick-
ly with the nose down. Proper speed control is an essential require-
ment for execution of any maneuver, and care should always be exer-
cised to avoid excessive speed which in turn can impose excessive
loads. In the execution of all maneuvers, avoid abrupt use of controls .
Intentional spins with flaps extended are prohibited.
FLIGHT LOAD FACTOR LIMITS
NORMAL CATEGORY
Ei'light Load Factors (Gross Weight -2550 lbs.):
*Flaps Up . . . . . +3 .Sg, -1.52g
*
Flaps Down . . . . . . . . . . . . . . . . . . . . +3 .0g
*
The design load factors are 150% of the above , and in all
cases , the structure meets or exceeds design loads .
JTILITY CATEGORY
~light Load Factors (Gross Weight -2200 lbs .):
*
Flaps Up · · · · · +4.4g, -1.76g
*
Flaps Down . . . . . . . . . . . . · · · · · · · . +3.0g
*
The design load factors are 150% of the above, and in all
cases, the structure meets or exceeds design loads.
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CESSNA
MODEL R172K
KINDS OF OPERATION LIMITS
SECTION 2
LIMITATIONS
The airplane is equipped ~or day VFR and may be equipped fo~
night VFR and/ or IFR operations. FAR . Part 91 establishes the. mm-
. · d ·nstrumentation and equipment for these operat10ns.
imum require i . · l" ·t t·
The reference to types of flight operat10ns on the op~ratmg . imi a 10ns
placard reflects equipment installed at the tune of Airworthmess Cer-
tificate issuance.
Flight into known icing conditions is prohibited.
FUEL LIMITATIONS
2 Standard Tanks: 26 U.S. gallons each.
Total Fuel: 52 U.S. gallons .
Usable Fuel (all flight conditions): 49 U.S. gallons.
Unusable Fuel : 3.0 U.S. gallons.
NOTE
To ensure maximum fuel capacity when refueling, P~8'.ce
the fuel selector valve in either LEFT or RIGHT posit10n
to prevent cross-feeding.
NOTE
Takeoff, climb and land with the fuel selector valve
handle in the BOTH position.
Approved Fuel Grades (and Colors):
100LL Grade Aviation Fuel (Blue).
100 (Formerly 100/ 130) Grade Aviation Fuel (Green).
2-9

SECTION 2
LIMIT A TIO NS
CESSNA
MODEL R172K
PLACARDS
The following information is displa d . th f rm of composite or
indiv idual pla car ds . ye m e 0
(1) In full view of the pilot: (The "DAY-NIGHT-VFR-IFR" entry ,
shown on the example below, will vary as the airplane is equipped .)
This a~rp~an~ must be operated in compliance with the oper-
atmg lunitat10ns as stated in the form of placards, markings ,
and manuals.
---------MAXIMUMS--------
Normal Category
MANEUVERING SPEED (!AS) . 105 knots .
GROSS WEIGHT . . . . . 2550 lbs . .
Utility Category
105 knots
2200 lbs.
FLIGHT LOAD FACTOR
Flaps Up +3.8, -1.52
Flaps Down +3.0 . . . +4.4, -1.76
+3.0
Normal Category - No acrobatic maneuvers including spins
approved.
Utility Categor y - Baggage compartment and rear seat must
not be occupied.
---. NO ACROBATIC MANEUVERS APPROVED -
EXCEPT THOSE LISTED BELOW
Maneuver Reem . Entry Speed Maneuver Reem. Entry Speed
Chandelles . 110 knots
Lazy Eights . . . . . 110 k,nots
Steep Turns . . . . . 105 knots
Spins . . . Slow Deceleration
Stalls (except
whip stalls) Slow Deceler ation
2-10
Altitude loss in stall recovery -- 160 feet.
Abrupt use of controls prohibited above 105 knots.
Spins Recover y: opposite rudder - forward elevator - neu-
tralize co ntrol s. In tentional spins with flaps extended are
prohibited . Flight into known icing co~ditio.ns prohibited .
This a irpl ane is certified for the followii:i~ flight operations
as of date of original airworthiness certificate:
DA y _ NIGHT - VFR - IFR
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CESSNA
MODEL R172K
SECTION 2
LIMITATIONS
(2) Near flap indicator :
A
VOID SLIPS WITH FLAPS EXTENDED
(3) On the fuel selector valve:
BOTH -49 GAL.
LEFT - 24 .5 GAL.
RIGHT -24.5 GAL.
(4) On the fuel selector valve:
WHEN SWITCHING FROM DRY TANK,
TURN PUMP ON HIGH MOMENTARILY.
(5) Near fuel tank filler cap:
FUEL
100/130 MIN. GRADE AVIATION GASOLINE
CAP . 26 U.S. GAL.
(6) On control lock:
CONTROL LOCK
REMOVE BEFORE STARTING ENGINE .
2-11

SECTION 2
LIMITATIONS
CESSNA
MODEL R172K
(7) In baggage compartment:
2-12
200 POUNDS MAXIMUM
BAGGAGE OR 120 L
FOR BS AUX SEAT PASSENGER
WARD OF BAGGAGE DOOR LATCH
5o
POUNDS MAXIMUM
BAGGAGE AFT OF BAGGAGE DOOR LATCH
MAXIMUM 200 POUNDS COMBINED
FOR ADDITIONAL LOADING INSTRUCTIONS
SEE WEIGHT AND BALANCE DATA
(8) Near manifold pressure/fuel flow gage:
FUEL FLOW
AT FULL THROTTLE
SL
4000 FT
8000 FT
12000 FT
2600 RPM
16 GPH
14 GPH
12 GPH
10 GPH
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)
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CESSNA
MODEL R172K
SECTION 3
EMERGENCY PROCEDURES
SECTION 3
EMERGENCY PROCEDURES
TABLE OF CONTENTS
Introduction . . . . . . . . . . . .
Airspeeds For Emergency Operation
OPERATIONAL CHECKLISTS
Engine Failures . . . . . . . . . . . . .
Engine Failure During Takeoff Run . . .
Engine Failure Immediately After Takeoff
Engine Failure During Flight . . . . . .
Forced Landings . . . . . . . . . . . . . .
Emergency Landing Without Engine Power
Precautionary Landing With Engine Power
Ditching . . ..... .
Fires . . . . . . . . . . .
During Start On Ground
Engine Fire In Flight
Electrical Fire In Flight
Cabin Fire
Wing Fire . . .... .
Icing .. . ... .
Inadvertent Icing Encounter
Static Source Blockage (Erroneous Instrument Reading
Suspected) . . . . . . . . . . . . . .
Landing With a Flat Main Tire . . . . . . .
Electrical Power Supply System Malfunctions
Over-Voltage Light Illuminates .....
Ammeter Shows Discharge . . . . . . .
Engine Failure
Forced Landings
AMPLIFIED PROCEDURES
Page
3-3
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3-3
3-3
3-4
3-4
3-4
3-4
3-4
3-5
3-5
3-5
3-6
3-6
3-6
3-7
3-7
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3-8
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3-8
3-8
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. 3-10
3-1

SECTION 3
CESSNA
MODEL R172K
EMERGENCY PROCEDURES
ENGINE FAILURE IMMEDIATELY AFTER TAKEOFF
(1) Airspeed -- 70 KIAS (flaps UP)
65 KIAS (flaps DOWN
(2) Mixture -- IDLE CUT-OFF ).
(3)
Fuel Shutoff Valve __ OFF.
(4) Ignition Switch __ OFF. (pull out).
(5) Wing Flaps -- AS REQUIRED d)
(6)
Master Switch __ OFF. (full down recommende ·
ENGINE FAILURE DURING FLIGHT
(1) Airspeed -- 75 KIAS.
(2) Primer -- IN and LOCKED.
(3) Fuel Shutoff Valve -- ON (push full · )
(4)
Fuel Selector Valve -- BOTH. m ·
(5) Mixture -- RICH.
(6) Throttle -- 1/2 OPEN.
(7) Auxi~iary Fuel Pump -- LOW for 3-5 seconds then OFF.
(8) Igmt10n Switch -- BOTH (or START if propeller is stopped).
FORCED LANDINGS
EMERGENCY LANDING WITHOUT ENGINE POWER
(1) Airspeed -- 70 KIAS (flaps UP).
65
KIAS (flaps DOWN).
(2)
Seat Belts and Shoulder Harnesses -- SECURE.
(3) Mixture -- IDLE CUT-OFF.
(4') Fuel Shutoff Valve -- OFF.
(5) All Switches (except master switch) -- OFF.
(6) Wing Flaps -- AS REQUIRED (full down recommended).
(7) Master Switch -- OFF.
(8) Doors -- UNLATCH PRIOR TO TOUCHDOWN .
(9) Touchdown -- SLIGHTLY TAIL LOW.
(10)
Brakes -- APPLY HEAVILY.
PRECAUTIONARY LANDING WITH ENGINE POWER
3-4
(1) Seat Belts and Shoulder Harnesses -- SECURE.
(2) Wing Flaps -- 20°.
(3)
Airspeed -- 65 KIAS.
(4) Selected Field -- FLY OVER noting terrain and obstruct·
' . d . ions
then retract flaps upon reaching a safe !J:ltitu e ~nd airspeed '
(5)
All Switches (except master and igmt10n switches) __ OF .F
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CESSNA
MODEL R172K
SECTION 3
EMERGENCY PROCEDURES
(6) Wing Flaps -- FULL DOWN (on final approach).
(7) Airspeed -- 65 KIAS .
(8) Master Switch -- OFF.
(9) Doors -- UNLATCH PRIOR TO TOUCHDOWN.
(10) Touchdown -- SLIGHTLY TAIL LOW.
(11) Ignition Switch -- OFF .
(12)
Brakes -- APPLY HEAVILY .
DITCHING
(1) Radio -- TRANSMIT MAYDAY on 121.5 MHz , giving location
and intentions.
(2) Heavy Objects (in baggage area) -- SECURE or JETTISON.
(3) Seat Belts and Shoulder Harnesses -- SECURE.
(4) Wing Flaps -- 20° -40°.
(5)
Power -- ESTABLISH 300 FT/MIN DESCENT at 55 KIAS.
(6) Approach -- High Winds, Heavy Seas -- INTO THE WIND.
Light Winds, Heavy Swells -- PARALLEL TO
SWELLS
NOTE
If no power is available , approach at 65 KIAS with flaps
up or at 60 KIAS with 10° flaps.
(7) Cabin Doors -- UNLATCH.
(8) Face -- CUSHION at touchdown with folded coat.
(9) Touchdown -- LEVEL ATTITUDE AT ESTABLISHED DES-
CENT .
(10)
Airplane -- EVACUATE through cabin doors. If necessary ,
open window to flood cabin to equalize pressure so doors can be
opened.
(11) Life Vests and Raft -- INFLATE.
FIRES
DURING START ON GROUND
(1) Auxiliary Fuel Pump -- OFF .
(2)
Mixture -- IDLE CUT-OFF.
(3) Parking Brake -- RELEASE.
(4) Fire Extinguisher -- OBTAIN (have ground attendants obtain if
not installed).
(5) Airplane -- EVACUATE.
(6) Fire -- EXTINGUISH.

SECTION 3
CESSNA
MODEL R172K
EMERGENCY PROCEDURES
NOTE
If sufficient ground personnel are available (and fire is
on groun~ and not too dangerous) move airplane away
t
fhromh th.e fire by pushing rearward on the leading edge of
e onzontal stabilizer.
(7) Fire D amage -- INSPECT, repair damage or replace damaged
components or wiring before conducting another flight.
ENGINE FIRE IN FLIGHT
(1) Throttle -- CLOSE.
(2) Mixture -- IDLE CUT-OFF.
(3) Fuel Shu toff Valve -- OFF.
(4) Master Switch -- OFF.
(5) C~bin Heat and Air -- OFF (except overhead vents).
(6) Airsp~ed -- 10? KIAS (If fire is not extinguished , increase glide
sp.eed to fmd an airspeed which will provide an incombustible
mixture).
(7) Fo.rced Land~ng -- EXECUTE (as described in Emergency Land-
mg Without Engme Power). Do not attempt to restart engine.
ELECTRICAL FIRE IN FLIGHT
(1) Master Switch -- OFF.
(2) All Other Switches (except ignition switch) -- OFF .
(3)
Vents/Cabin Air/Heat -- CLOSED .
(4)
Fire Extinguisher -- ACTIVATE (if available).
!WARNING'
After discharging an extinguisher within a closed cabin
ventilate the cabin. '
If fire appears out and electrical power is necessary for continu-
ance of flight:
(5) Master Switch -- ON.
(6)
Circuit Breakers -- CHECK for faulty circuit, do not reset.
(7) Radi?/Electri~al ~witches -.- ON one at a time, with delay after
each until short circuit is localized.
(8) Vents/Cabin Air/Heat -- OPEN when it is ascertained that f.
. 1 t 1 . .
ire
is comp e e y extmgmshed.
CABIN FIRE
(1) Master Switch -- OFF.
3-6
CESSNA
MODEL R172K
SECTION 3
EMERGENCY PROCEDURES
(2) Vents/Cabin Air/Heat -- CLOSED (to avoid drafts).
(3) Fire Extinguisher -- ACTIVATE (if available).
!WARNING'
After discharging an extinguisher within a closed cabin,
ventilate the cabin.
(4) Land the airplane as soon as possible to inspect for damage.
WING FIRE
(1) Navigation Light Switch -- OFF.
(2) Strobe Light Switch (if installed) -- OFF.
(3) Pitot Heat Switch (if installed) -- OFF.
NOTE
Perform a sideslip to keep the flames away from the fuel
tank and cabin, and land as soon as possible using flaps
only as required for final approach and touchdown.
ICING
INADVERTENT ICING ENCOUNTER
(1) Turn pitot heat switch ON (if installed).
(2) Turn back or change altitude to obtain an outside air tempera-
ture that is less conducive to icing.
(3) Pull cabin heat control full out to obtain maximum windshield
defroster airflow.
(4) Increase engine speed to minimize ice build-up on propeller
blades.
(5) Watch for signs of induction air filter ice and regain manifold
pressure by increasing the throttle setting.
(6) Plan a landing at the nearest airport. With an extremely rapid
ice build-up, select a suitable "off airport " landing site.
(7) With an ice accumulation of 1/ 4 inch or more on the wing lead-
ing edges, be prepared for significantly higher stall speed.
(8) Leave wing flaps retracted. With a severe ice build-up on the
horizontal tail , the change in wing wake airflow direction caused
by wing flap extension could result in a loss of elevator effective-
ness.
(9) Open left window and, if practical , scrape ice from a portion of
the windshield for visibility in the landing approach .
3-7