Transcript Slide 1

Euromed GNSS II / MEDUSA project
Civil Aviation
EGNOS/GNSS service usage, strategies and recommendations
Airliner :
Egypt Air
Egypt Air Airlines
Egypt national workshop, CAIRO - 12 March 2014 - NANSC
 EGNOS Benefits - General
 EGNOS Benefits - approach (LPV) in comparison with NPA
 Example : Lower DH and lower minima
 EGNOS Benefits - approach (LPV) in comparison with Baro-VNAV
 Example : Human error and many corrections
 EGNOS Benefits - approach (LPV) in comparison with ILS
 Example : Doubtful trust in ILS serviceability
 GALILEO Benefits
 Airline fleet ; related capabilities
 Expectations
EGNOS
Benefits
General
 More accurate navigation
 More reliable navigation ( use / don’t use , estimated residual positioning error : Integrity )
( horizontal Alert Limit from 0.3 NM (556m) to 40 m )
( Vertical Alert Limit 50 m )
Africa has an appropriate location
(EGNOS foot print/EGNOS extension to cover North-Africa ) and is in need
 Over half of all accidents occur during the final approach and landing stages
EGNOS
Benefits
Approach
LPV
benefits
# NPA
Lower decision height , lower minima
Stable Airspeed , ROD* and FPA* (No intermediate step down )
Flight Director is a command instrument
CFIT decreases
Minimize arrival flight time and hence fuel
Reduce noise levels
# NPA has a low safety record (most common
accident/incident cause is descent below MDA(H)
Safety increases
Delay and Cancellation of flights decreases
(i.e. Aerodrome capacity gain in low visibility)
Diversion decreases
* ROD : Rate of Descent (ft/min) , FPA : Flight path angle
LPV
#
NPA
Lower DH and lower minima
LFBD
Bordeaux Merignac
RNAV (GNSS) Rwy 05
# Baro VNAV
LPV
benefits
Baro VNAV is restricted to a minimum temperature
Altimetry is based on ISA density variation
Cold temperature correction
Low pressure correction
Hot temperature neglected although affecting
Destination altimeter subscale setting and human error
Check by RA and EGPWS (2500’ AGL) (workload)
LPV
#
VNAV
Human Error / Many Corrections
Effect of one inch high altimeter setting
Unusual barometric pressure , such as 28.29 in Hg (low pressure) , when “in Hg” unit is used ,
may be set , by mistake , to a more usual 29.29 in Hg ,
resulting-in the true altitude (i.e. the aircraft’s actual height above MSL ,
being 1000 ft lower than indicated .
In most of baro-VNAV approach
# ILS
LPV
benefits
Dependant on an international source
Depends on national management / local navaid
A/C Flight path is loaded in the A/C Nav. Data Base
Broadcasted
Extends its service to all runways
Each runway is “funded” individually
LPV
#
ILS
TRUST
A0999/14 NOTAMR A0998/14
Q) XXXX/QNAAO/IV/B/AE/000/999/….N…..E…
A) XXXX
B) 1401160733 C) PERM
E) TRUST US AND DO NOT BELIEVE WHAT THE PILOTS SAY.
THE ILS IS OKAY AND OPERATIONAL 100%.
CREATED: 16 Jan 2014 07:41:00
SOURCE: XXXXYNYX
( FICTIONAL NOTAM )
‼ It happened : (a) flight(s) was(were) dispatched , with marginal weather conditions , according
to the ILS minima, and after their return, the crew reported that the ILS was U/S .
GALILEO
Benefits
 EGNOS is paving the path for GALILEO
 Under civilian control
 Interoperable with GPS and GLONASS
 More increase in navigation positioning accuracy
 Is vital where there is a lack of ground based navigation solution
Airline Fleet
Related Capabilities
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
 GPS receivers , autopilot and navigation system
will need updating to be EGNOS capable
 RNP 4 is in progress ( for RNP 10 A/C’s )
5
7
25
40
95
93
75
50
GPS
RNAV APCH
RNAV 1
RNAV 10
EGNOS/GALILEO
Expectations
 More extension/coverage over Africa
 More routes/airspaces based on GNSS and PBN capabilities
 Technical assistance , training and cost-benefit analyses are expected
Thank you for your attention
Mérci pour votre attention
‫السالم عليكم و رحمة هللا‬
Under Supervision of
Captain / Mohamed Elian - G.M.IOCC
Captain / Ayman Ghoneim - Deputy G.M.IOCC
Haytham Zaki abdelLatif
Senior Flight dispatcher
Egypt Air Airline
Email : [email protected]
E mail : [email protected]