Instrument Flight
Flight Procedures
When given the simulated emergency, set the power to 86-88 percent RPM. 88 percent should be used
with extreme flying conditions, i.e., high elevation or a hot summer day. If given outside the GCA box
pattern, monitor and control airspeed with speed brakes as necessary to expedite landing without causing
an unduly difficult transition to gear speed and the glidepath. In the GCA box, use the speed brakes to
maintain 200 KIAS. When given the “up and on glidepath” (approximately 6 nm from touchdown) call on
PAR, or as needles center on the ILS, lower gear and retract speed brakes. Lower the nose to maintain
the glidepath at 175 KIAS. As desired, lower flaps to half, retract speed brakes and maintain glidepath at
175 KIAS. With field in sight and runway made, you may select flaps to full down. If flaps are selected
full, this should be commenced prior to the landing flare. Also, if flaps are selected to full, a nosedown
attitude will counter the ballooning action. Extend speed brakes and reduce power to idle at touchdown if
no intent to go missed approach.
The low oil GCA is a precautionary approach (PA) (see NATOPS) modified for actual instrument
conditions or night time. In a PA the aim point is short of the runway on a 10 degree (approximately)
glideslope. However, the low oil approach “aimpoint” is the touchdown point for the PAR or ILS. Also, the
glideslope is more shallow so the transition to half and full flaps is delayed to ensure that the airspeed
does not bleed too rapidly.
If the landing environment is not in sight during an actual emergency, at decision height or a safe landing
cannot be completed, execute a waveoff as follows; retract the speed brakes, raise the gear and slowly
position the nose to a climb attitude. When above 300 ft AGL and indicating a positive rate of climb, raise
the flaps, 140 KIAS minimum. Do not reset power. Use speed brakes as necessary to maintain 200 KIAS
in the GCA box pattern.
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