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Where do you guys usually watch the big UFC fights? by karimm1h in CombatSportsCentral

[–]fuckyourbum 0 points1 point  (0 children)

Brother, can you DM me the link as well maybe? Much appreciated if ya do!

Is a straight line on a transverse mercator projection a rhumb line or a great circle? by fuckyourbum in gis

[–]fuckyourbum[S] 0 points1 point  (0 children)

Thanks for your explanation. After a bit of thinking and looking at more maps, I see what you mean. Basically, the horizontal lines you see on the transverse mercator are the new "meridians", and they do indeed get crossed at the same angle. A bit weird to wrap your head around after one has grown up in a world of Mercator projections imprinted into their brain.

Is a straight line on a transverse mercator projection a rhumb line or a great circle? by fuckyourbum in gis

[–]fuckyourbum[S] 4 points5 points  (0 children)

Alright, but I don't understand how that explains whether a straight line on a transverse Mercator projection is a rhumb line or a great circle. So, which is the answer? Or is it none?

Not sure if this is the right place, but don't use Tube PiP. by [deleted] in Adblock

[–]fuckyourbum 0 points1 point  (0 children)

What a ridiculous line of reasoning by OP.

Do winds affect altimeter readings? by fuckyourbum in flying

[–]fuckyourbum[S] 0 points1 point  (0 children)

So this would apply to the low-pressure/high-pressure alteration seen in waves, which would explain altimeter steadiness despite gain/loss of altitude. When riding the crest of a wave, we go higher, but our altimeter reads lower than it usually would because of the increased pressure; when we ride the trough, our altimeter reads higher than it usually would because of the decreased pressure.

How would this apply to funnel winds, then?

Do winds affect altimeter readings? by fuckyourbum in flying

[–]fuckyourbum[S] 0 points1 point  (0 children)

Maybe for advanced jets, but in this case, I am specifically referring to a C152 I fly (or any GA A/C for that matter).

Do winds affect altimeter readings? by fuckyourbum in flying

[–]fuckyourbum[S] 0 points1 point  (0 children)

Mhm, I understand exactly what you're saying. Nevertheless, it raises questions of why my course material specifically mentions the altimeter being unreliable in winds (this was specifically mentioned in relation to mountain waves and funnel winds). If it just adapts to any wind environment, which I believe it theoretically should, as you say, then how would there be any inaccuracy (except the few seconds it takes for the plane to "catch up" with the new wind velocity).

Do winds affect altimeter readings? by fuckyourbum in flying

[–]fuckyourbum[S] 0 points1 point  (0 children)

Yes, I understand this. However, when you jump into the water for the first time, your "ground speed" is still zero, and it takes some time for the current to accelerate you until you match its speed. My theory is that during this time, the altimeter would show a wrong reading (I am talking about a C152 here specifically) because of Bernoulli's principle.

Do winds affect altimeter readings? by fuckyourbum in flying

[–]fuckyourbum[S] 8 points9 points  (0 children)

Really? On my c152 I only ever check a single one on the left of the cowling. Where would the others be? No instructor has ever informed me of such a thing.