jetcareers - View Single Post - Timing outbound before you start a procedure turn

ananoman · October 3rd, 2004, 22:57

[ QUOTE ]
My question: is there a corollary about flying outbound for two minutes if the navaid for the approach is on the field? I.e., if the VOR/NDB that the approach is based off of is physically located on the field, I would then fly outbound for 2 minutes to better set myself up for the approach.

[/ QUOTE ]
You are correct. In a Seminole, you are probably flying 110-120 KIAS outbound, or about 2 miles per minute. For an approach with the navaid on the field you will be about 4 miles out prior to starting the procedure turn. This will give you some extra room to loose altitude and find the airport, while keeping you within 10 miles of the navaid.

Just be careful if you start to fly a faster airplane or if you have a big tailwind outbound. You may have to modify this rule to stay within the 10 miles. If you have DME or even better GPS, then you can monitor your distance. When doing NDB approaches I like to put the NDB in the GPS, so I know how far out I am. This can take the guess work out of timing the outbound leg, and lets you know how far you have to go until the navaid once established inbound.

October 3rd, 2004, 22:57	#3
ananoman Senior Member Join Date: Dec 2002 Posts: 916	Re: Timing outbound before you start a procedure t [ QUOTE ] My question: is there a corollary about flying outbound for two minutes if the navaid for the approach is on the field? I.e., if the VOR/NDB that the approach is based off of is physically located on the field, I would then fly outbound for 2 minutes to better set myself up for the approach. [/ QUOTE ] You are correct. In a Seminole, you are probably flying 110-120 KIAS outbound, or about 2 miles per minute. For an approach with the navaid on the field you will be about 4 miles out prior to starting the procedure turn. This will give you some extra room to loose altitude and find the airport, while keeping you within 10 miles of the navaid. Just be careful if you start to fly a faster airplane or if you have a big tailwind outbound. You may have to modify this rule to stay within the 10 miles. If you have DME or even better GPS, then you can monitor your distance. When doing NDB approaches I like to put the NDB in the GPS, so I know how far out I am. This can take the guess work out of timing the outbound leg, and lets you know how far you have to go until the navaid once established inbound.