Taking off UP a 5% slope in a C172?
Yikes, how long is this strip? I'll have to go scrounging among my old airstrip info for some of the places around this part of the world, but I don't think we've got anything like that here because there wouldn't be enough length available to make it viable (and safe).
Just a word of caution here though. If it ends up being a one-way strip, your mate would do well to follow at least one example from this country. Get a thorough checkout on one-way take-off and landing from someone who knows what it's all about.
There's plenty ways for him to ruin his whole day if he doesn't learn well...
