Where must the marks on an airspeed indicator be located?

The marks must be located at the corresponding indicated airspeeds.

How is the caution range indicated on an airspeed indicator according to CS 29.1545?

The caution range is indicated by a yellow range.

What marking is used for the safe operating range on an airspeed indicator?

The safe operating range is marked with a green or unmarked range.

What are the required markings on an airspeed indicator for a helicopter when VNE (power-off) is lower than VNE (power-on)?

A red, cross-hatched line at VNE (power-off) must be placed on the airspeed indicator for helicopters, if VNE (power-off) is less than VNE (power-on).

For a non-helicopter rotorcraft, what type of line is required at VNE on the airspeed indicator?

A red line at VNE is required for rotorcraft other than helicopters.

For helicopters, what is the red line on the airspeed indicator specifically designated as?

For helicopters, the red line is at VNE (power-on).

Which EASA decision and amendment are associated with CS 29.1545?

ED Decision 2003/16/RM and Amendment 29/11 are associated with CS 29.1545.

Does CS 29.1545 require any specific color for the caution range?

Yes, the caution range must be a yellow range.

What is the difference in the red line marking between helicopters and other rotorcraft?

For helicopters, the red line is at VNE (power-on), while for rotorcraft other than helicopters, the red line is at VNE.

Is a green range always required for the safe operating range?

No, the safe operating range may be a green or unmarked range.

CS 29.1545 Airspeed indicator

Navigate / EASA

Ask question Discover more Add to collection

CS 29.1545 Airspeed indicator

ED Decision 2003/16/RM

(a) Each airspeed indicator must be marked as specified in sub-paragraph (b), with the marks located at the corresponding indicated airspeeds.

(b) The following markings must be made:

(1) A red line:

(i) For rotorcraft other than helicopters, at V_NE; and

(ii) For helicopters, at V_NE (power-on).

(2) A red, cross-hatched line at V_NE (power-off) for helicopters, if V_NE(power- off) is less than V_NE (power-on).

(3) For the caution range, a yellow range.

(4) For the safe operating range, a green or unmarked range.

[Amdt: 29/11]

Details

Source-Title: CS 29.1545 Airspeed indicator View latest amendments

Erulesid: ERULES-1963177438-5707 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