IFR Law - Weather and Alternates

On an IFR flight plan if the destination aerodrome does not have an instrument approach an alternate must be listed regardless of the weather:

• True

• False

When deciding whether an alternate is required or not, the weather must be considered for what time period:

• Only the ETA

• 1 hour before and after the ETA

• 30mins before and after the ETA

• The duration of the flight

When deciding whether an alternate is required the cloud;

• Base must be at least 1000ft above the published minimum

• Ceiling must be at least 1000ft above the aerodrome level

• Ceiling must be at least 1000ft above the published minimum

• Base must be at least 1000ft above the aerodrome level

When deciding whether an alternate is required the visibility must be;

• 5km or 2km more than the published minimum, whichever is greater

• 5km or 2km more than the published minimum, whichever is lesser

When nominating an aerodrome as an alternate, that aerodrome must have: (select all that apply)

• Standby power for the entire aerodrome

• Two GNSS-based instrument approaches

• Standby power for the ground-based instrument approach nominated

• An operable precision approach procedure

When using the IFR Alternate Aerodrome Minima Table to determine whether an aerodrome is available for use as an alternate, the weather conditions published in the table must exist:

• For 1 hour before an after the ETA at the alternate

• At the ETA at the alternate

• From the time the aircraft diverts from the original destination, until 1 hour after the ETA at the alternate

What is the definition of cloud ceiling?

• The cloud height above the surface that is more than 5 oktas

• The height above ground or water of the base of the lowest layer of cloud below 20 000 feet covering more than half the sky

• The height above ground or water of the base of the lowest layer of cloud below 10 000 feet covering more than half the sky

• The height above ground or water of the base of the lowest layer of cloud covering more than half the sky

Your ETA at NZLX is 052200z the TAF for the day reads:

TAF NZLX 052044Z 0520/0605 13012KT 15KM SCT020 BKN030

BECMG 0600 BKN020

2000FT WIND 28010KT

BECMG 0522/0600 11010KT

QNH MNM 1015 MAX 1024

Do you require an alternate?

• Yes

• No

Your ETA at NZCH is 060300z the TAF for the day reads:

TAF NZCH 052044Z 0520/0605 13012KT 15KM SCT020 BKN030

BECMG 0602 BKN1100

2000FT WIND 28045KT

BECMG 0522/0600 11060KT

QNH MNM 985 MAX 1020

Do you require an alternate?

• Yes

• No

Your ETA at NZNR is 052100z the TAF for the day reads:

TAF NZNR 052044ZYe 0520/0605 13012KT 4000 SCT020 BKN030

BECMG 0520 BKN020

BECMG 0603 BKN008

BECMG 0604 11060G95KT

2000FT WIND 28010KT

BECMG 0522/0600 11010KT

QNH MNM 1015 MAX 1024

Do you require an alternate for the VOR RWY 34 Approach?

• Yes

• No