Helicopter Instrument Straight Climbs[PDF]
The technique for straight climbs varies according to the airspeed on entry and whether a constant airspeed or constant rate climb is made.
Constant Airspeed Climb
This type of climb is more desirable for low performance helicopters. When the target airspeed is the max climb speed, helicopters get the most efficient climb performance.
For constant airspeed climb:
- Airspeed indicator and altimeter are primary instruments for pitch
- Heading indicator is primary instrument for bank
- Torque/manifold pressure is primary instrument for power
- Attitude indicator is supporting instrument for pitch and bank
- Vertical speed indicator is supporting instrument for pitch
- Turn-and-slip indicator is supporting instrument for bank control
- To enter a constant airspeed climb from cruise airspeed when the climb speed is lower than cruise speed, simultaneously increase power to the climb power setting and adjust pitch attitude to the approximate climb attitude.
- When the helicopter stabilizes at a constant airspeed, continue cross-checking other pitch instruments.
The level off from a constant airspeed climb must be started before reaching the desired altitude according to vertical speed.
- When the proper lead altitude is reached, the altimeter becomes primary for pitch. Adjust the pitch attitude to the level flight attitude for that airspeed.
- If cruise airspeed is higher than climb airspeed, leave the power at the climb power setting until the airspeed approaches cruise airspeed, and then reduce it to the cruise power setting.
Constant Rate Climb
This type of climb is generally used for training purposes. It is also used when a specific amount of climb is required in a specific amount of time.
For constant rate climb;
- Airspeed indicator is primary instrument for power.
- Heading indicator is primary instrument for bank.
- Attitude indicator is supporting instrument for pitch and bank.
- Vertical speed indicator is primary instrument for pitch.
- Turn-and-slip indicator is supporting instrument for bank control.
The technique and procedures for entering a constant rate climb are very similar to those previously described for a constant airspeed climb.
- To enter a constant rate climb, increase power to the approximate setting for the desired rate.
- As power is applied, the airspeed indicator is primary for pitch until the vertical speed approaches the desired rate.
- At this time, the VSI becomes primary for pitch. Change pitch attitude by reference to the attitude indicator to maintain the desired vertical speed.
- When the VSI becomes primary for pitch, the airspeed indicator becomes primary for power. Adjust power to maintain desired airspeed.
The level off from a constant rate climb is accomplished in the same manner as the level off from a constant airspeed climb.
Conditions and objective
- Instrument Flying Handbook (FAA-H-8083-15B)
- VID 522050- Creation
DATE OF SUBMISSION
- 12:49, 23 February 2021
- This documentation is copyrighted as part of the intellectual property of the International Virtual Aviation Organisation.
- The content of this documentation is intended for aviation simulation only and must not be used for real aviation operations.