Cessna 177 SERIES Service Manual

GRIND
r f c_-____-___
Aor B
--------------
A
B
WING
STA
205
| ,- 1/4"
|MODELS
I A
B
C
WING STATION
.----
-- » 177 AND 2.00-
2.00 40.50
26.50
177A
.75 2.00
25.50
205.00
I.
DETAIL A
|DETAILA MODELS A B C WING STATION
177B
2.00
2.00
40.50
26.50
.25
2.00
25.50
205.00
(Refer to paragraph 18-8 for angle of incidence).
CHECKING
WING
TWIST
If damage has
occurred to a wing, it is advisable to check
the twist. The following method can be used
with
a minimum
of equipment, which includes a straightedge
(42" minimum length of angle, or equivalent),
two
modified bolts and a protractor head with level.
1. Check chart for applicable dimension for bolt length (A or B).
2. Grind bolt shanks to a rounded point as illustrated, checking length periodically.
3. Tape two bolts
to straightedge according
to dimension C.
4. Locate inboard wing station
to be checked and make a pencil mark
approximately one-half inch
aft of the lateral row of rivets in the wing leading edge spar flange. rivet
5. Locate outboard wing station to
be checked in accordance with detail A.
Make a pencil mark
approximately
one-half inch aft of first
lateral row of rivets in the leading
edge spar.
6. Holding straightedge
parallel to wing
station, (staying as
clear as possible from
"cans"), place
bolt
on pencil mark and set protractor
head against lower edge of straightedge.
7. Set bubble
in level to center and lock
protractor to hold this reading.
8. Omitting
step 7, repeat procedure for each wing station,
using dimensions specified in the chart. Check
to see that protractor bubble is still centered.
9. Proper twist is present in wing if protractor readings are the same (parallel). Forward or aft bolt
may be lowered
from
wing
.10 inch maximum
to attain
parallelism.
Figure 18-2.
Checking Wing
Twist
18-8
Change
5

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)