What is the climb requirement in the normal take-off distance?

Establish a positive rate of climb.

What is the difference between normal take-off distance and elevated heliport take-off distance?

The normal take-off distance includes reaching at least 11 m (35 ft) above the take-off surface, while the elevated heliport take-off distance does not include that altitude requirement; it only requires attaining and maintaining a speed of at least VTOSS and establishing a positive rate of climb.

What does 'positive rate of climb' mean in the context of take-off distance?

The section states that the rotorcraft must establish a positive rate of climb, but does not define the term further.

Does the elevated heliport take-off distance require reaching a specific altitude?

No, the section does not specify an altitude requirement for elevated heliports.

What is the engine failure point relative to the TDP in the take-off distance definitions?

The engine failure point is prior to the TDP.

What is the speed requirement in the take-off distance for elevated heliports?

Attain and maintain a speed of at least VTOSS.

What is the climb requirement in the take-off distance for elevated heliports?

Establish a positive rate of climb.

CS 29.61 Take-off distance: Category A

Q: What altitude above the take-off surface must a rotorcraft reach in a normal take-off?

At least 11 m (35 ft) above the take-off surface.

Q: What condition is assumed for the critical engine in the take-off distance definition?

The critical engine failure occurs at the engine failure point prior to the TDP.

Q: In the definition of take-off distance for elevated heliports, what is the assumed engine failure scenario?

The critical engine failure occurs at the engine failure point prior to the TDP.

Q: What is the ending point for measuring normal take-off distance?

The point at which the rotorcraft attains and remains at least 11 m (35 ft) above the take-off surface, attains and maintains a speed of at least VTOSS, and establishes a positive rate of climb.

Q: What is the ending point for measuring take-off distance for elevated heliports?

The point at which the rotorcraft attains and maintains a speed of at least VTOSS and establishes a positive rate of climb.

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CS 29.61 Take-off distance: Category A

ED Decision 2003/16/RM

(a) The normal take-off distance is the horizontal distance along the take-off path from the start of the take-off to the point at which the rotorcraft attains and remains at least 11 m (35 ft) above the take-off surface, attains and maintains a speed of at least V_TOSS; and establishes a positive rate of climb, assuming the critical engine failure occurs at the engine failure point prior to the TDP.

(b) For elevated heliports, the take-off distance is the horizontal distance along the take-off path from the start of the take-off to the point at which the rotorcraft attains and maintains a speed of at least V_TOSS and establishes a positive rate of climb, assuming the critical engine failure occurs at the engine failure point prior to the TDP.

Details

Source-Title: CS 29.61 Take-off distance: Category A View latest amendments

Erulesid: ERULES-1963177438-5469 Compare versions

Domain: Initial airworthiness

Amendedby: Initial issue

Applicabilitydate: 14 November, 2003

Entryintoforcedate: 14 November, 2003

Regulatorysource: ED Decision 2003/16/RM Navigate

Regulatorysubject: CS-29

Typeofcontent: CS (Certification specification)

Origin: EASA

Category: EAR