Rans COYOTE II S-6ES, Technical Manual

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020240cg msw 09/01/05
024-11
SPECIAL SECTION ON FLAP OPERATIONS
IN GENERAL
The flap equipped Coyote II has a wider speed envelope but this is only realized through proper flap usage.
Please take the time to become thoroughly familiar with the aircraft and procedures before attempting any
maximum performances, take-offs or landings. The aircraft functions well without using flaps only take-
off/landing distances are longer and speeds are higher. Pay close attention to the recommended flight speeds
called out in this section.
The first notch of flaps is 11 degrees used to moderately shorten take-off rolls. The max flap extension speed
is 65 mph. Although it is allowable to extend to full flaps at 80 mph, it is actually better technique to extend a
notch at a time.
EXAMPLE: 80 mph-1st notch, 70 mph-2nd notch, 60 mph-3rd notch. You'll find this gives you
much smoother approaches with less flap lever pressure. For your reference: 1st notch/11 degrees, 2nd
notch/30 degrees, 3rd notch/43 degrees.
The second flap setting is used again to shorten take-offs and to smoothly decelerate to approach speed. The
third notch of flaps is going to yield the shortest take-off with the least distance over a fifty foot obstacle. Also,
this setting allows steeper, slower approaches. Typically a 55 mph approach speed in a 20 degree nose low
attitude is desired.
CAUTION: It is very easy to exceed the maximum flap extension (Vfe) speed during such
approaches...be wary of this.
LANDING WITH FLAPS
Maintain at least 45 to 50 mph with full flaps and a constant glide slope in a nose low attitude. Fly down to the
runway, then level off at 2 to 3 feet to start the flair.
CAUTION: Low power and a nose high point attitude
during the glide slope is to be avoided with or without full flaps. The aircraft may develop high sink and not
recover.
CAUTION: Inspect flap lever catches for wear every 100 hours. Keep roller lubricated.
PROHIBITED: Spins with flaps extended any degree but 0.
MAX PERFORMANCE TAKE-OFFS
Prior to executing a max performance take-off it is recommended to have performed several take-off and
landings with no flaps, 1 notch, and 2 notches.
PROCEDURE: Flaps 43 degrees, brakes on full, briskly apply
full power holding stick slightly back to raise the nose. Ease back pressure once breaking ground as needed to
maintain 55 mph (best angle of climb speed) to 50 ft., then start slowly easing off the flaps and maintain 75
mph for best rate of climb speed. Set power as needed.
CAUTION: Do not "dump" the flaps when
retracting...always bleed them off slowly and let the airspeed increase.
This procedure has proved to yield the shortest possible take-off. In addition, it is recommended for soft fields.
The technique is not fool proof, however, and requires a fair amount of piloting skill.
Avoid prolonged flight at high power settings and slow speeds. This flight mode causes violent, turbulent
airflow over the tail with associated "tail buffet". This can be felt in a stick shake. This is a warning of an
impending stall and to decrease the angle of attack and increase airspeed.