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14 Cards in this Set
- Front
- Back
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B-1 Steep Spiral Objective (Emergency Descent) |
Improve pilot techniques for airspeed control, wind drift control, planning, orientation, and division of attention Used as an Emergency Descent Maneuver when a desired landing spot is closer than a gliding approach would require Could be used in the case of an air emergency over a landing spot |
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B-2 Definition |
A steep spiral is a constant gliding turn, during which a constant radius around a point on the ground is maintained similar to the maneuver turns around a point. |
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B-3 Cautions: |
The radius should be such that the steepest bank will not exceed 60 degrees Start needs to be an altitude that will allow at least 3 complete 360s and must not continue below 1000' AGL |
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B-4 Clearing the Engine |
At the completion of each 360 turn, the engine will need to be returned to cruise power for a few seconds to prevent shock cooling and other potential damages to the engine. |
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B-5 Start of Procedure |
Clear the Area using two procedure turns equaling at least 90 degrees in opposite directions. Roll from one right to the next. Use these turns to scan for traffic |
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B-6 |
Apply Carb Heat if equipped and power the engine back to idle |
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B-7 |
Establish IAS at Vg
Roll smoothly into a coordinated turn in either direction of 45 - 60 degrees using both aileron and rudder inputs (C-172 Vg = 80 MPH) |
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B-8 |
Maintain a constant and uniformed radius maintained around the selected spot correcting for wind by steeping the bank on downwind and shallowing on upwind |
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B-9 |
Maintain a constant IAS by adjusting pitch attitude to compensate for varying bank angle and lift factor |
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B-10 |
At the completion of each 360 degree turn SMOOTHLY apply cruise power for 3 seconds controlling pitch during power application and then reduce power back to idle. |
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B-11 |
At the completion of the final 360 making sure to break off before descending below 1000' AGL; Roll WIngs level using aileron and rudder Roll out on original heading At the completion of the maneuver; SMOOTHLY apply power and remove carb heat |
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B-12 |
Return Aircraft to Cruse IAS and Power Setting |
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B-14 |
Commercial PTS Bank Angle not to exceed 60 degrees of bank Chooses an entry altitude that allows for 3 complete 360 degree turns Airspeed +or- 10 knots rolls out on entry heading +of- 10 degrees |
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B-15 Common Errors |
Improper pitch, bank, yaw, & power coordination during entry or completion Uncoordinated us of flight controls Improper planning & lack of maintenance of constant airspeed & radius. Failure to stay orientated to the number or turns and rollout heading. |
