What is the steady angle of glide requirement for Category B helicopters under CS 29.71?

For each Category B helicopter, except multi-engine helicopters meeting the requirements of CS 29.67(b) and the powerplant installation requirements of Category A, the steady angle of glide must be determined in autorotation at the forward speed for minimum rate of descent as selected by the applicant, at the forward speed for best glide angle, at maximum weight, and at the rotor speed or speeds selected by the applicant.

What weight condition is specified for determining the steady angle of glide in CS 29.71?

The steady angle of glide must be determined at maximum weight.

How are rotor speeds selected for the angle of glide determination in CS 29.71?

The steady angle of glide must be determined at the rotor speed or speeds selected by the applicant.

What is the regulatory basis for the angle of glide requirement in CS 29.71?

The regulatory basis is ED Decision 2003/16/RM, as stated in the section.

CS 29.71 Helicopter angle of glide: Category B

Q: Which Category B helicopters are exempt from the CS 29.71 angle of glide requirement?

Multi-engine helicopters that meet the requirements of CS 29.67(b) and the powerplant installation requirements of Category A are exempt from the CS 29.71 angle of glide requirement.

Q: At which forward speeds must the steady angle of glide be determined for a Category B helicopter under CS 29.71?

The steady angle of glide must be determined at the forward speed for minimum rate of descent as selected by the applicant, and at the forward speed for best glide angle.

Q: In what flight condition must the steady angle of glide be determined for Category B helicopters under CS 29.71?

The steady angle of glide must be determined in autorotation.

Q: Does CS 29.71 apply to all Category B helicopters without exception?

No, CS 29.71 applies to each Category B helicopter except multi-engine helicopters meeting the requirements of CS 29.67(b) and the powerplant installation requirements of Category A.

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CS 29.71 Helicopter angle of glide: Category B

ED Decision 2003/16/RM

For each Category B helicopter, except multi-engine helicopters meeting the requirements of CS 29.67(b) and the powerplant installation requirements of Category A, the steady angle of glide must be determined in autorotation:

(a) At the forward speed for minimum rate of descent as selected by the applicant;

(b) At the forward speed for best glide angle;

(d) At the rotor speed or speeds selected by the applicant.

Details

Source-Title: CS 29.71 Helicopter angle of glide: Category B View latest amendments

Erulesid: ERULES-1963177438-5492 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