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Which one of the following statements is correct regarding a take-off from a clear airfield using Procedure 1 (Short Field Take-off)?
  • A
    If an engine failure occurs before CDP land immediately. If the engine fails at or after CDP continue the climb out.
  • B
    If an engine failure occurs before CDP land immediately. If the engine fails at or after CDP a safe landing procedure should be initiated.
  • C
    If an engine failure occurs before CDP land immediately. If the engine fails at or after CDP continue the climb out at VY.
  • D
    If an engine failure occurs after TDP land immediately. If the engine fails at or before CDP continue the climb out.

Refer to figure.
According to CAP 758 - Section 3 - Engine Failure at Take-off Emergency Procedures (p.39): If following Procedure No. 1 (Short Field Take-off):

  • Any engine failure before the CDP entails IMMEDIATE LANDING.
  • Engine failure at or after CDP an engine failure does not hinder take-off:
  1. The helicopter accelerates up to VTOSS
  2. Retains speed up to 200 ft (60 m) above ground
  3. At 200 ft (60 m) accelerates to Vy
  4. Retracts landing gear and
  5. Continues to climb at Vy with 30-minute power rating.
According to CAP 758 - Section 3 - Table 3.4 (p. 33):
  • "CDP" stands for "Critical take-off Decision Point". At this point:
  1. Normal landing is possible on the landing area if one engine fails BEFORE reaching this point.
  2. Flight continuation is possible if an engine fails AFTER this point.

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