Cessna 150 AEROBAT A150M Pilot Operating Handbook page 69

CESSNA
MODELA150M
LOOP
SECTION 4
NORMAL PROCEDURES
The normal loop is basically a 360 degree turn executed in the verti-
cal plane. The maneuver consists of a climb, inverted flight, dive, and
recovery to straight and level flight conducted in a series. The entire
loop should be conducted with a positive g level on the airplane and at max-
imum power (within 2750 RPM limits).
The loop is entered from a shallow dive at 115 KIAS. A 2. 5 to 3. Og
pullup is initiated and a continuous elevator back pressure maintained
throughout the inverted position. A slight relaxation of back pressure
may be necessary to prevent stall buffeting from occuring through the
downward side of the loop and to maintain the symmetrical pattern of the
maneuver. Observation of landmarks through the skylight windows will
aid in keeping the pilot oriented throughout the inverted portion of the loop.
Interesting variations of the basic loop may be performed by (1) in-
cluding a quarter roll in the recovery dive, and (2) describing a clover-
leaf pattern through a series of four consecutive loops with quarter rolls.
SLIGHT RELAXATION OF BACK PRESSURE-----
TO MAINTAIN CONSTANT RADIUS
J}r-"',,,,.,,~,
. . , . . .
;;;;;o;.····~~
il
CONSTANT 2. 5 TO 3. Og
,....--PULLUP
CONSTANT 2. 0 TO 3. Og
PULLOUT____,../·;~!~'\".,'.--~---!
, _ _ _ _ ,...._ _ _ _ __
IN DIVE RECOVERY ..
ENTRY
Figure 4-5. Loop
.4-2-7