Chapter VI Airframe Hours and Engine Activity

Table 6.1 2004 GENERAL AVIATION AND AIR TAXI TOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFT BY AIRCRAFT TYPE AIRCRAFT TYPE Aircraft Population Size Estimate of Number Active Percent Standard Error Estimate of Percent Active Percent Standard Error Estimate of Total Airframe Hours Percent Standard Error Estimate of Average Airframe Hours Percent Standard Error Fixed Wing Fixed Wing - Piston 1 Eng: 1-3 Seats 1 Eng: 4+ Seats 1 Engine: Total 2 Eng: 1-6 Seats 2 Eng: 7+ Seats 2 Engine: Total Piston: Other Piston: Total 62,766 124,567 187,333 15,885 6,721 22,606 224 210,163 39,283 107,330 146,613 13,024 5,445 18,469 107 165,189 2.4 1.5 1.9 1.5 1.3 1.4 1.6 1.8 62.6 86.2 78.3 82.0 81.0 81.7 47.9 78.6 2.4 1.5 1.9 1.5 1.3 1.4 1.6 1.8 175,543,229 419,914,066 595,457,295 59,608,344 33,033,416 92,641,761 1,788,439 689,887,495 4.2 2.3 2.0 3.9 3.6 2.8 15.3 1.8 2,796.8 3,371.0 3,178.6 3,752.5 4,915.0 4,098.1 7,984.1 3,282.6 4.2 2.3 2.0 3.9 3.6 2.8 15.3 1.8 Page 6 - 1 Table 6.1 2004 GENERAL AVIATION AND AIR TAXI TOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFT BY AIRCRAFT TYPE AIRCRAFT TYPE Aircraft Population Size Estimate of Number Active Percent Standard Error Estimate of Percent Active Percent Standard Error Estimate of Total Airframe Hours Percent Standard Error Estimate of Average Airframe Hours Percent Standard Error Fixed Wing - Turboprop 1 Engine: Total 2 Eng: 1-12 Seats 2 Eng: 13+ Seats 2 Engine: Total Turboprop: Other Turboprop: Total Fixed Wing - Turbojet 2 Engine Turbojet Turbojet: Other Turbojet: Total Fixed Wing: Total 9,198 923 10,121 229,319 8,649 650 9,298 182,867 0.3 1.0 0.4 1.5 94.0 70.4 91.9 79.7 0.3 1.0 0.4 1.5 39,250,355 4,404,224 43,654,579 777,764,705 1.3 10.6 1.4 1.4 4,267.3 4,771.6 4,313.3 3,391.6 1.3 10.6 1.4 1.4 2,603 5,345 1,005 6,350 82 9,035 2,468 5,027 831 5,858 54 8,379 0.3 0.3 0.6 0.4 1.4 0.3 94.8 94.0 82.7 92.2 66.1 92.7 0.3 0.3 0.6 0.4 1.4 0.3 8,533,932 28,250,297 6,686,940 34,937,237 751,463 44,222,631 3.5 1.4 11.8 2.3 4.7 1.9 3,278.5 5,285.4 6,653.7 5,501.9 9,164.2 4,894.6 3.5 1.4 11.8 2.3 4.7 1.9 Page 6 - 2 Table 6.1 2004 GENERAL AVIATION AND AIR TAXI TOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFT BY AIRCRAFT TYPE AIRCRAFT TYPE Aircraft Population Size Estimate of Number Active Percent Standard Error Estimate of Percent Active Percent Standard Error Estimate of Total Airframe Hours Percent Standard Error Estimate of Average Airframe Hours Percent Standard Error Rotorcraft Piston 1 Eng: Turbine Multi-Eng: Turbine Turbine: Total Rotocraft: Total Other Aircraft Gliders Lighter-than-air Other Aircraft: Total 3,129 6,499 9,628 2,116 3,823 5,939 1.3 2.5 2.0 67.6 58.8 61.7 1.3 2.5 2.0 3,314,298 1,320,620 4,634,918 4.7 15.0 6.5 1,059.2 203.2 481.4 4.7 15.0 6.5 3,685 5,569 1,261 6,830 10,515 2,315 4,376 1,130 5,506 7,821 1.0 0.7 0.4 0.7 0.8 62.8 78.6 89.6 80.6 74.4 1.0 0.7 0.4 0.7 0.8 6,775,838 25,332,989 4,203,257 29,536,246 36,312,084 4.1 3.2 2.6 2.6 2.4 1,838.8 4,548.9 3,333.3 4,324.5 3,453.4 4.1 3.2 2.6 2.6 2.4 Page 6 - 3 Table 6.1 2004 GENERAL AVIATION AND AIR TAXI TOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFT BY AIRCRAFT TYPE AIRCRAFT TYPE Aircraft Population Size Estimate of Number Active Percent Standard Error Estimate of Percent Active Percent Standard Error Estimate of Total Airframe Hours Percent Standard Error Estimate of Average Airframe Hours Percent Standard Error Experimental Amateur Exhibition Other Experimental: Total 33,129 2,889 2,278 38,296 19,165 2,070 1,565 22,800 3.4 1.6 1.1 2.9 57.8 71.7 68.7 59.5 3.4 1.6 1.1 2.9 25,885,736 5,668,199 6,426,146 37,980,081 32.4 7.8 7.5 19.1 781.4 1,962.0 2,821.0 991.8 32.4 7.8 7.5 19.1 Total All Aircraft Table Notes: 287,758 219,426 1.6 76.3 1.6 856,691,789 1.4 2,977.1 1.4 Beginning in 2004, commuter activity is excluded from all estimates. 2003 and prior, commuter activity was included in the Air Taxi use category. The small number of aircraft in some of the 'other' categories (e.g., "Piston: Other," "Turbojet: Other") may result in relatively high standard errors for estimates of the number of active aircraft and hours flown. For this reason estimates reported for 'other' categories may vary greatly from year to year and should be evaluated with caution. Columns may not add to totals due to rounding procedures. Page 6 - 4