Page 469 - UK Air Operations Regulations (Consolidated) 201121

~ Regulation SPA - ANNEX V - Specific Approval Operations n trik

• Screens diagram(s) of any faults
• NVIS kit: complete
• W IS binocula r assembly cond ition
• Battery pack and quick disconnect cond ition
• Battertes life expended so far
• Mount battery pack onto helmet:
verify no LED showing (good battery)
fa il battery by opening cap and LED
illuminates (both compartments)
• Mount NVIS onto helmet
• Adjust and focus NVIS
• Eye-span to known inter--pupillary distance
• Eye piece focus ring to zero
• Adjustments:
vertical
fore and aft
tilt
eye-span (fine-tuning)
• Focus (one eye at a time at 20 ft, then at30ft from
an eye c11art)
objective focus ring
eye piece focus ring
verify both images are harmonised
read eye-chart 20/40 line from 20 ft
• NVIS mission planning
• NVIS ligtlt level planniflg
• NVIS risk assessment
NVIS terrain Night terrain interpretation 1 hour
interpretation and • Light sources:
environmenta I
natural
factors
lunar
sola r
star1 ight
northern lights
anificial
rn ltural
infra-red
• Meteorological condit ions:
douds/fog
indications of restriction to visibility:
loss of celestial lights
loss of ground lights
reduced ambient light level.s
reduced visual acuity
increase in video noi.se
increase in halo effect
• Cues for visual recogJ1 ition:
object size
object shape
contrast
ambient light
colour
texru re
background
reflectivity
• Factors affecting terrain interpretation:
ambient light
flight altitudes
terrain type
• Sea.sons
• Night navigation cues:
terrain relief
vegetatK>n
hydrograpt, ical features
rn ltu ral features
NVIS t raining & Cover the relevant regulations a lld gtJidel ines that penain 1 hour
eq uipment to night and NVIS flight to include as a minimum:
requirements Crew experience requirements;
Crew training reguirements;
Airspace requirements;
Night/ NVIS MEL;
NVIS / night weather limits;
NVISeguipment minimum standard requirements.
NVIS emergency Cove r relevant emergency procedures: 1 hour
procedures lnadvenent IMC procedures
• NVIS goggle failure
• Helicopter emergencies:
with goggles
transition from goggles
NVISflight Respective fli~t technique.s for each pha.se of flight for 1 hour
techniques the type and cl ass of helicopter used for NVIS training
10 Ba.sic instrument Present and confirm understanding of ba.sic instrument 1 hour
techniques flight techniques:
• Instrument sea n
• Role of instruments in NVIS flight
• Unu.sual attitude recovery procedures
11 Blind cockpit drills Perform blind cockpit drills: 1 hour
• Switches
• f:irn 1it hr-P;ikp,-.;;
20th November 2021 469 of 856