this may sound dumb, but landing on them -do u land going up the hill or down it, and depending on the answer how could u flare for that?

On such runways you land always uphill. Yes, you flare, if runway is so sloped you can't flare - you better don't go there. :(

Generally speaking you want to land 'uphill'. There are a few reasons for that. The most obvious one is that you'd have to have an increased rate of descent through the air to touch down on a surface dropping away from you, whereas if you have a slightly lesser rate of descent you can happily land on a surface that is coming up to meet you.Really it is only an issue on very sloped ground, most runways do have some sort of slope on them and a good many of them dip in the middle too (this is so the aircraft can gain impetus on the take off roll and then have a very slight uphill cant as it goes for take off, but the effect is fairly minimal over large runways, which can be several miles long. So the slope only becomes a hugely important factor when it is particularly steep.Most glider pilots are familiar with landing uphill, since it is something that happens a fair bit if you 'land out' in a field (which every glider pilot will have done at some point). The consideration here is of course picking a field that you can land into the wind on, but also one that slopes uphill for your landing direction so that it reduces the ground roll (typically the brakes on a glider are not that great on wet grass and going downhill on wet grass would mean there's a good chance you'd roll a long way). Actually in reality you'll find it is difficult to judge the slope of a field from the air unless it is very pronounced, so keeping in mind stuff like the fact that rivers flow downhill etc can aid in judging that sort of thing, but normally wind direction is a more important consideration than slope anyway.As far as flaring goes, although when on the ground looking at a sloped field it can seem alarming, in practice you are still going off the attitude of the aircraft to the ground and judging it by eye and feel of the ground effect when landing, so although it might seem an alarming prospect, in reality the technique is not that different.Visit an average glider airfield and you'll find a lot of them are very sloped, it looks scary at first sight, but it really isn't a big deal. The first time I ever saw Camphill in the UK, I thought pilots would have to be insane to try landing there (it has slopes all over it), but I was a fairly inexperienced pilot at that point and found out that although you have to be careful of windshear on approach, it's really not that bad at all, nevertheless, that place does breed good pilots for that very reason, because your altimeter is fairly useless there if you've been in the air for more than half an hour.Al

Depends on a few variables like which way is the wind coming from and are there any obstacles. For the most part though it is land uphill and takeoff down hill. It is surprising how much power is needed to takeoff uphill.As for the flare I've never really noticed changing it too much.

Uphill.And in most cases you have to add quite a lot of throttle again AFTER landing to make it up the slope ! Quite a few accidents happen with newbie pilots not doing this (sufficiently) and then crashing the aircraft when it rolls backwards :( Also, most sloped runways are in the mountains, higher up and caution is needed with operating there making sure your mixture control is in order :( Yes, you flare, as with any landing.... the airfields I personally fly from have a (short!) flat part at the bottom that can be used to flare on..... The most dangerous aspect of landing on these runways is by floating too long and then flying INTO the sloping runway, instead up landing ON them!Francois,'Mountain Pilot' :(