Logging flight hours
In gliding, for the Silver Badge a solo cross-country to a point 50 km away from the launch release is required. For the UK CAA SPL (SailplanePilots Licence) also a 50 km flight if solo, or 100 km if dual. (27 or 55 nm.).
And, having just started teaching them myself, the UK and EASA Night Qualifications require a 27nm night cross country of at-least an hour. Which is a very very slow 27nm !
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