Boldface Limits Exam Flashcards
Who has the authority to clear personnel in and out of the rotor arc?
The aircraft captain
What items fall under ICS (Identify Confirm Select)
ENG MAIN sw (except in training mode)
Fuel transfer switchers (XFER F or A)
Engine twist grips on the collective (Blind I-C-S for left seat)
ENG MODE SEL sw
ENG EMERG OFF sw
Maximum rearward wind limitation for IBF operation
30 kn
Start and stopping the rotor wind limitations
50kn from all directions except rearwards where the IBF limit applies.
Minimum height with ILS mode engaged for “hands-off” operation
200 ft AGL
Minimum height with any other mode engaged for “hands-off” operation
500 ft AGL
Hi NR should turn on at what speed?
IAS Passing greater than 55KIAS, turns off
IAS passing less than 50KIAS, turns on
High Rotor RPM warnings (>106 %)
Flashing RPM light
Gong Audio Tone
Reset available
High Rotor RPM warning (>112 %)
Flashing RPM light
Continuous High Tone
Reset not available
Rotor RPM warning ( <97 %)
ON RPM light
Intermittent Low Audio Tone
Reset Available
Vne for steady stick autorotation
90 kn or as per Vne tables if less
When should Hi NR be engaged
2835 kg
For 723 Sqn, all the time
Power OFF Rotor RPM Limits
Minimum 85%
MCP 106%
Transient 112%
Low fuel warning
Clock… start stopwatch
If both LOW FUEL warning lights are on:
LAND WITHIN 10 MINUTES
OR
If LOW FUEL Warning light is on:
FUEL quantity indication… check
If both LOW FUEL Warning lights remain on:
LAND WITHIN 10 MINUTES
If one LOW FUEL warning light remains on:
Expect single engine failure after approx. 10 minutes
Minimum and Maximum air range speed for autorotation
Minimum rate-of-descent 60 KIAS
Maximum 90 KIAS
Max airspeed for floats
For inflation, lower than 80kn.
No limit if not inflated
Single Engine Shutdown Acronym
Identify, Confirm, Select
FADEC Minimum ENG TQ requirement
10%
After landing with manual twistgrips, why is it necessary to reduce the collective at the same time.
To maintain an acceptable NR range
LAND IMMEDIATELY
The urgency of landing is paramount. Primary consideration is to assure survival of occupants. Water, trees other unsafe as a last resort
LAND AS SOON AS POSSIBLE (LAND ASAP)
Land without delay at the nearest adequate site (open field) at which a safe approach and landing can be made.
LAND AS SOON AS PRACTICABLE
The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond nearest approved landing area where appropriate assistance can be expected is not recommended.
FADEC FAIL (SYSTEM 1) or FADEC FAIL (SYSTEM 2)
- Collective Lever… Adjust as necessary to maintain N(RO) within normal range
- Affected engine… Identify by small collective changes
- Respective TWIST GRIP… Adjust slowly to set 80% (+ or - 2%) N(1) [Gas generator] on the affected engine (TWIST GRIP caution my come on). Simultaneously adjust collective to maintain engine within limits
After Landing: - Respective TWIST GRIP… Reduce, before lowering the collective pitch lever to full down position (to keep N(2) [power turbine speed] /N(RO) [rotor speed] within limits
SINGLE ENGINE FAILURE - FLIGHT
- OEI flight condition… establish
- Affected engine… identify
- Single engine emergency shutdown… perform
- LAND AS SOON AS PRACTICABLE
- Single engine landing… Perform checklist
