Emerg 08 - Emergency Navigation Flashcards
Review questions
What are the levels of emergencies?
Critical: land immediately at suitable landing location
Non-critical: Land as soon as possible at nearest suitable aerodrome
How critical would the following emergencies be?
Generator failure - non-critical Engine fire/ failure - critical Food poisoning - potentially non-critical, depends Hypoxia - critical Props fail to feather - critical Rack or radar hot - non-critical Bird strike - potentially critical Lightning strike - potentially critical
What are the sequences for Emergency Navigation?
- Identify the level of emergency
- Identify aircraft position
- Identify a suitable landing location
- Provide bearing, distance and SH
- Provide other useful information (GPH 205)
What are some methods to determining the A/C position?
Present position on GPS and INS
Radial/ DME from a VOR
Bearing/ distance from radar feature
DR position on chart (worst case scenario)
What are some considerations when identifying a suitable landing location?
Runway size and surface conditions
Weather
Navaids and types of approaches
Airspace and NOTAMs
What are some weather considerations for emergency navigation?
Conditions enroute
Ceiling, visibility and wind at emergency aerodrome
What are the emergency navigation considerations regarding Navaids?
What types of approaches are available based on wx and navaids
What are the emergency navigation considerations regarding airspace and NOTAMs?
Are there any NOTAMs or airspace restrictions affecting the location
What are some examples of NOTAMs and airspace restrictions that may influence your choice of aerodrome?
Forest fire Airshow Blasting area Runway repair etc...
What are some facilities and services that must be considered at aerodromes during emergency navigation?
Hours of operation for servicing Aircraft Rescue Fire Fighting (ARFF) Medical services Flight service station Accommodations etc...
After a suitable aerodrome is identified, what must a student provide to the pilots?
Bearing and distance to suitable aerodrome
What methods can be sued when providing bearing and distance to a suitable aerodrome?
Eyeball (initially)
Plot track
Navaids
Computers
Before the aircraft begins descent while heading to a suitable aerodrome, what must be provided?
The safety height between the aircraft and the chosen aerodrome
What is the safety height and terrain avoidance rule in non-mountainous regions?
1000’ above obstacles within 5 nm of the track
What can students use to provide safety heights and terrain avoidance heights while enroute?
VNC and ONC: Spot heights or MEF
GPH 206: MOCA if on airway, or AMA
GPH 200: 100 nm safe altitude or 25 nm MSA from aerodrome
What is not an acceptable source for terrain avoidance? Why?
JNC
It does not include towers and other info, only the highest point of land
What is special regarding the MEF and safety heights?
1000’ needs to be added to the number, it only provides the height of the highest obstacle within the area.
What is some useful information to pass to pilots regarding emergency navigation?
Suitable QNH Wind direction and speed Types of approaches available Fuel analysis Airspace considerations Flight profile recommendations Position of high terrain Distress or suitable frequencies Etc ...
What are some of the best ways to determine px when navigation is degraded?
Navaids
Radar
DR from last position
The CT-142 Driftdown Table describes what?
The single-engine altitude you can expect to settle at with one engine at max power, one engine feathered, 0° flap and gear retracted
What are the Driftdown Table entry arguments?
Weight and ISA Dev
What are the entry arguments for the Single Engine Climb Ceiling Table?
Weight and ISA Dev
What are the entry arguments for the Single Engine Cruise Performance table?
ISA Dev, Weight and Altitude
What is the CT-142 Glide Ratio?
Glide ratio of 15:1
Meaning you move ahead 15 000’ for every 1000’ of altitude loss (or 2.5 nm for every 1000’)
