Table B-41. General aviation nonairport crash frequency.

DOE-STD-3014-96

APPENDIX B

The next step of the process is to ascertain the impact frequency from nonairport

operations (see Section 5.3.2 of the standard). First, determine the aircraft crash

frequency from general aviation nonairport operations. To do this, the analyst first

obtains the generic maximum value of NPf(x,y) for general aviation nonairport

operations from Table B-14. The general aviation nonairport crash frequency is shown

in Table B-41.

TABLE B-41. General aviation nonairport crash frequency.

Generic Maximum

A, sq. miles

Generic Maximum Nonairport

Value for NPf(x,y)

Crash Frequency

GA Aircraft

3E-3

2.1E-3

6E-6

The next step is to determine the commercial and military aviation in-flight crash

frequency, following Steps 9 through 16 of Chapter 5. To do this, the analyst obtains

the maximum NPf(x,y) for these aircraft categories from Table B-15. The commercial

and military aviation nonairport crash frequencies are shown in Table B-42.

TABLE B-42. Commercial and military nonairport crash frequencies.

Generic Maximum Value

Generic Maximum

for NPf(x,y)

Nonairport Crash

sq.miles

Frequency (per year)

Commercial Aviation

2E-6

1.5E-2

3E-8

Air Carrier

Commercial Aviation

8E-6

1.3E-2

1E-7

Air Taxi

Military Aviation

7E-7

1.4E-2

1E-8

Large Aircraft

Military Aviation

6E-6

4.0E-3

2E-8

Small Aircraft

B-47