User 4883
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Joined: Jan 19, 2026
Topics: 2 / Replies: 4
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Alternate Requirements.

Hi. AIP ENR 1.1 para 11.7.2.13 (p ENR1.1-93) states that the VFR "alternate minima are a ceiling of 1500ft and visibility of 8km". I understand this m...

7 years ago
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Endurance vs altitude

Thanks again. I've just referred to Bob's CPL Aerodynamics book and the explanation is there. TAS determines the power required for a piston engine ae...

7 years ago
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Endurance vs altitude

Thanks John. I suppose with a displaced threshold the LDA could be shorter than the TORA. Maybe that's what they were getting at. Regarding fuel burn,...

7 years ago
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GNSS Nav Database Currency for PBN operations - CAO 20.91

Thanks for the response Stuart. I agree that 13.3 makes the most sense. However, some people who hire out "IFR" aircraft are happy to fly IFR with an ...

7 years ago