Section Iii - Emergency Procedures - Cessna 1971 Super Skymaster Owner's Manual

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Section
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EMERGENCY PROCEDURES
ENGINE FAILURE DURING TAKE-OFF.
An
engine-out on take-off presents no difficult directional control
problem with the centerline thrust Super Skymaster, since there is no un ­
balanced thrust as with a conventional twin-engine airplane. Therefore,
there is no minimum single-engine control speed, as normally defined for
conventional twins.
The most critical time for an engine failure in a twin-engine airplane
18 a two or three-second period late in the take-off run while the airplane
18 accelerating to the single-engine best rate-of-climb speed. The fol-
,
lowing paragraphs present a detailed discussion of the problems associ ­
ated with engine failure during take-off.
The airplane's climb performance in the event of an engine-out is at
the optimum at the best single-engine rate-of-climb speed. This speed is
apprOximately 100 MPH and
is
marked by a blue line on the airspeed in­
dicator dial. In the event of engine failure, altitude could be maintained
more easily at this speed while the propeller is being feathered. There ­
fore, it is recommended that this speed be obtained as promptly as pos­
.lble after lift-off. Although 100 MPH is the preferred speed, 95 MPH
may be used with obstacles immediately ahead.
Upon engine failure on take-off, the twin-engine airplane has a signifi-
cant advantage over a single-engine airplane, for the pilot would have the
choice of stopping or continuing the take-off. This would be similar to the
chOice facing a single-engine pilot who has suddenly lost apprOximately
half
of his take-off power. In this situation, the single-engine pilot would
be extremely reluctant to continue the take-off
if he had to climb over ob­
.tructions. However,
if
the failure occured at an altitude as high or
higher than surrounding obstructions, he would feel free to maneuver for
I
landing back at the airport if adequate performance was available under
the existing conditions of weight, altitude, and temperature.
Fortunately, the airplane accelerates through the "area of decision"
in just a few seconds. However, to make an intelligent decision in this
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