AeroVantage ~ Control (Flight & Power) - Failure
Overview:
Note
1x2
Notes:
The initial intention is to have all the controls identical to that of a conventional fixed-wing airplane.
This may not be so for the 1x2. The two PropRotors may do all of the flight control during cruise and hover.
Redundancy will be required for a manned craft; particularly in the control and power circuitry.
Hover:
Note that both PropRotors to have overrunning clutches:
Loss of power in rear motor:
- Computer to immediately remove all power to the front motor.
- Computer to give a temporary collective increase to the rear PropRotor or a temporary collective decrease to the front PropRotor.
Loss of power in front motor:
- Computer to immediately remove all power to the rear motor.
- Computer to give a temporary collective increase to the front PropRotor or a temporary collective decrease to the rear PropRotor.
Loss of blade pitch flight-control in rear motor:
- Alarm and advise pilot of the specific problem.
Loss of blade pitch flight-control in front motor:
- Alarm and advise pilot of the specific problem.
Loss of PropRotor tipping ability in either rotor:
- Alarm and advise pilot of the specific problem.
Transition:
Note that both PropRotors to have overrunning clutches:
The following corrective actions may well depend on the direction that the transition is moving in and the azimuth of the PropRotors at the time of the problem.
Think about this.
Loss of power in rear motor:
Within 20º of vertical: (hover)
Computer to immediately apply more motor to the front motor.
Computer to apply proportionately large forward cyclic to the front PropRotor.
Computer to feather rear Proprotor.
Within 70º of horizontal (cruise)
Computer to immediately remove all power to the front motor.
Pilot to drop collective on both PropRotors.
Loss of power in front motor:
- Within 20º of vertical: (hover)
- Computer to immediately apply more motor to the rear motor.
- Computer to apply proportionately large aft cyclic to the rear PropRotor.
- Computer to feather front PropRotor.
- Within 70º of horizontal (cruise)
- Computer to immediately remove all power to the rear motor.
- Pilot to drop collective on both PropRotors.
Loss of blade pitch flight-control in rear motor:
- Stop the tipping in the other rotor. Alarm and advise pilot of the specific problem.
Loss of blade pitch flight-control in front motor:
- Stop the tipping in the other rotor. Alarm and advise pilot of the specific problem.
Loss of PropRotor tipping ability in either rotor:
- Stop the tipping in the other rotor. Alarm and advise pilot of the specific problem.
Cruise:
Note that both PropRotors to have overrunning clutches:
Loss of power in rear motor:
- Computer to immediately feather the rear PropRotor, then fly on the front prop.
Loss of power in front motor:
- Computer to immediately feather the front PropRotor, then fly on the rear prop.
Loss of blade pitch flight-control in rear motor:
- It may be possible for the airplane flight controls to automatically adjust and thereby offset the deviant angle of the rotor's faulty actuator(s).
Tipping the rear Proprotor to the hover position may result in it causing the craft to roll.
Loss of blade pitch flight-control in front motor:
It may be possible for the airplane flight controls to automatically adjust and thereby offset the deviant angle of the rotor's faulty actuator(s).
Tipping the front Proprotor to the hover position may result in it causing the craft to roll.
Loss of PropRotor tipping ability in either rotor:
Computer to immediately stop the tipping of the operational one.
2x4
xx
Working Papers:
Items:
DESIGN:
|
|
Name |
Item |
| |
Both: |
|
|
|
1x2 |
|
|
|
AeroVantage ~ Control (Flight & Power) - Failure - Hover |
|
|
|
AeroVantage ~ Control (Flight & Power) - Failure - Transition |
|
|
|
AeroVantage ~ Control (Flight & Power) - Failure - Cruise |
|
|
|
2x4 |
|
|
|
|
|
MAKE:
Introduction Page | SynchroLite Home Page | Electrotor Home Page | UniCopter Home Page | Nemesis Home Page | AeroVantage Home Page:
Last Revised: February 7, 2009