Table 6-1

STUDENT GUIDE

VISUAL NAVIGATION

T-39 Weather Filing Requirements for Alternates

ALTERNATE WEATHER

DESTINATION WEATHER

ETA plus and minus one hour

0-0 up to but not including published

3000 3, or better

minimums

Published minimums up to but not

including 3,000 3, (single pilot

NON-

PRECISION

absolute minimums 200 )

PRECISION

Published

ILS

PAR

Minimums plus

Published

300-1

Minimums plus minimums

200

plus 200

3,000 3 or better

No alternate required

a In the case of single piloted or other aircraft with only one operable UHF/VHF transceiver,

radar approach minimums may not be used as the basis for selection of an alternate airfield.

b Alternate field is always required of CNATRA assigned aircraft (CNATRAINST 3710.8)

Table 6-1

T-1A Weather Filing Requirements for Alternates

DESTINATION WEATHER

ALTERNATE WEATHER

(TEMPO or prevailing)

ETA 1 HOUR

Wx ≥ 3,000' and 3 SM or 2 SM above lowest

No Alternate Required1

compatible published minimums.

If published approach is available:

Wx < 3,000 and 3 SM or 2 SM above lowest

1,000 and 2 SM or 500 feet and 1 SM above

compatible published minimums

lowest compatible approach minimums

(whichever is greater)

If published approach is not available:

Wx < 3,000 and 3 SM or 2 SM above lowest

Alternate weather must permit VFR descent

compatible published minimums

from IFR MEA and VFR approach and landing

Alternate field is always required of CNATRA assigned aircraft (CNATRAINST 3710.8)

Note: T-1A absolute minimums 300 feet-1 SM (AFI 11-206/AETC Sup 1)

Table 6-2

6-26