While departures are generally used as a measure of exposure for commercial air transport operations, flying hours are a more useful measure of exposure for GA because of the higher risk of an accident outside of the approach/landing and take-off phases of flight (for example, agricultural and search and rescue aircraft performing low flying as part of normal operations).
Table records thousands of hours flown by operation type3 for Australian (VH-) registered aircraft, and for recreational aircraft registered by a recreational aviation administration organisation (RAAO). At the time of publication, reliable hours flown data was only available to the end of 2012 for most operation types, and to 2011 for most types of recreational aviation.
Table : Hours flown (thousands), Australian-registered, 2004 to 2012
|
2004
|
2005
|
2006
|
2007
|
2008
|
2009
|
2010
|
2011
|
2012
|
All commercial air transport
(VH- registered)
|
1,563
|
1,623
|
1,633
|
1,733
|
1,758
|
1,706
|
1,852
|
1,878
|
1,957
|
High capacity RPT & charter
|
883
|
944
|
979
|
1,027
|
1,112
|
1,133
|
1,234
|
1,271
|
1,332
|
Low capacity RPT
|
205
|
202
|
181
|
167
|
133
|
109
|
116
|
127
|
128
|
Low capacity Charter
|
475
|
478
|
474
|
539
|
513
|
464
|
502
|
480
|
497
|
All general aviation
(VH- registered), (excl. gliders)
|
1,161
|
1,238
|
1,214
|
1,284
|
1,337
|
1,336
|
1,338
|
1,284
|
1,201
|
All Aerial work
|
412
|
426
|
412
|
445
|
464
|
446
|
514
|
509
|
470
|
Aerial Agriculture
|
86
|
95
|
62
|
62
|
78
|
73
|
104
|
100
|
89
|
Aerial Mustering
|
103
|
113
|
102
|
113
|
113
|
106
|
118
|
126
|
113
|
Aerial EMS
|
69
|
69
|
79
|
75
|
82
|
81
|
90
|
88
|
97
|
Aerial Search & Rescue
|
5
|
7
|
7
|
9
|
9
|
7
|
6
|
7
|
6
|
Aerial Survey
|
34
|
33
|
45
|
54
|
64
|
38
|
58
|
68
|
48
|
Flying training
|
357
|
420
|
429
|
461
|
490
|
501
|
440
|
391
|
365
|
Private/Business/Sport4
|
393
|
391
|
374
|
379
|
382
|
390
|
384
|
384
|
364
|
Gliders5
|
N/A
|
212
|
286
|
257
|
184
|
214
|
178
|
159
|
192
|
Recreational aviation
(Non-VH/RAAO- registered)
|
251
|
242
|
247
|
258
|
279
|
307
|
285
|
298
|
N/A
|
Gyrocopters6
|
31
|
30
|
28
|
28
|
30
|
36
|
44
|
49
|
N/A
|
Recreational aeroplanes7
|
83
|
87
|
113
|
129
|
145
|
163
|
129
|
141
|
N/A
|
Weight Shift8
|
137
|
125
|
106
|
100
|
103
|
109
|
111
|
108
|
N/A
|
Since 2009, there has been a growing gap between the hours flown in air transport when compared to GA. While GA flying activity has reduced, recreational flying has shown a slight increase over this period (Figure ).
Figure : Hours flown by operation type, Australian-registered, 2004 to 2012
The majority of commercial air transport flying in Australia is high capacity RPT, and its proportion of total air transport hours flown increased in every year between 2004 and 2012. In comparison, the number of low capacity RPT hours flown was lower in 2012 than in 2004, and charter hours flown remained static (Figure ).
Figure : Hours flown in VH-registered commercial air transport, 2004 to 2012
Figure shows a comparison of flying activity across GA. The total number of hours flown in GA has decreased since 2009, particularly in flying training which has fallen by more than one-quarter. In 2012, aerial work made up 39 per cent of all GA flying hours. Private/business/sport flying decreased in 2012, but showed a steady trend across most years. Other types of GA had steady flying activity from 2004 to 2012, although most declined slightly in 2012.
Figure : Hours flown in general aviation, 2004 to 2012
Wirestrike involving Ayres S2R Thrush (VH-HAH), 7 km SE of Condobolin Airport, New South Wales (ATSB investigation AO-2013-033)
Activity data (hours flown) is now available for Australian (non-VH) recreational aviation for limited years. Figure shows a comparison of flying activity across different types of RAAO, as reported by each RAAO to the BITRE. For most types of recreational aviation, data was not available for 2012 at the time of publication. RA-Aus registered recreational aeroplanes have shown a significant growth in flying hours over the last 10 years, with two-thirds more hours reported in 2011 when compared to 2004. This is notably higher than other common flying operations, such as high capacity RPT (42 per cent increase over this period), aerial work (24 per cent increase), charter (1 per cent increase), flying training (10 per cent increase), and private and business (decrease of eight per cent over this period). Recreational aeroplane activity differed from other types of recreational flying which showed only a small increase (gyrocopters registered with ASRA) or decreased (weight shift aircraft registered with HGFA) over a similar period.
Figure : Hours flown in recreational aviation, 2004 to 2012
More aviation activity statistics are available from the BITRE at www.bitre.gov.au.
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