Airplanes ARE effected by gravity, but they can counteract that with their wings which work like this:

The air on top is lower pressure so it sucks the wing up, and that's how airplanes fly. Newtonian physics doesn't account for air pressure because it doesn't need to, there is gravity on the airless moon that orbits Earth and astronauts orbiting the Earth in pressurized ships float around weightlessly. Air has NOTHING to do with gravity.
Yeah, we have been trying to explain to scepti for years, but he won't believe it. Not like it makes perfect sense and can be explained through basic physics.
Yes it can be explained through basic physics but the basic physics are a lie. They appear to look a truth but they are a lie to cover up for the fact that atmospheric pressure is the only reason why everything works as it does.
You see: the science we are told to hold dear, has photons and scattered particles of matter as if they are just loose balls just floating about, etc, etc. It's so effing ludicrous it really shocks the hell out of me as to why people cannot see it's bogus.
The brilliant part about it is: they can get away with this because people don't have the means to test a lot of it out - and the stuff that they do test, they can't make head nor tail of, except to go along with the silliness of equations that are fed into the system to make it appear to work as told.
The bullshit ruse of objects equally falling in a vacuum is a classic con.
The other one is the supposed Newton laws, where his supposed first one being: Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. On the whole it seems fine. I mean, yeah it can sort of make sense if you are a space fanatic and it can make simple sense on Earth.
You push a car and it stops in time because it has an opposing force; friction, which seems fine.
Then you go into so called space and then it becomes ridiculous, as though one push and it goes on forever as long as it doesn't hit any gravitational pull or some other absolute bullshit.
Anyway, here's the key with this.
You see, in space, if you are moving through space at say, 10 mph and you accelerate 10 mph, you are now going 20 mph but you stay at 20 mph. You can take your throttle off and you still go 20 mph. On Earth you will naturally start to slow down to friction.
So in space, if you keep giving a little throttle every minute, you simply go faster until theoretically you reach the speed of light over time, even if your space ship has a theoretical 10 mph speed restriction on Earth.
This is readily bought into because space is readily bought into, and it's cringeworthy.
Wake the eff up to his.
Second one: F=ma or force equals mass times acceleration. This is absolutely fine on Earth. It makes perfect sense , except it makes perfect sense for the bogus gravity and the real denpressure.
The problem isn't on Earth but when attributed to so called space.
You see, in space, we get told that even though objects supposedly float, which gets techy when you start to really go deep with questioning, because gravity gets pulled (pardon the pun) out of the bag for you to be told, " ahhh but objects still have mass, even in space and gravity acts on that mass, so it's mass attracts mass"... and blah blah.
You see, it gets weirder and weirder when they pull this crap on us with space exploits - as in - the space station.
Actornauts show us all kinds of stuff where they lift weights or an apple and they can't tell the difference, because they are in zero - or "micro" gravity as we get told.
It get ludicrous and people are just mesmerised by the complexity of it all. It cannot be rationally explained in any basic terms because it's simply a case of mass attracts mass and that's it. Just accept it as something magical that scientist can't work out. It simply must be believed because you're not stupid...an apple falls and so do you, so there.

The third law is the simplest and easiest. It also applies to denpressure as well as fake gravity, just in different takes.
For every action there is an equal and opposite reaction.Pretty straightforward in the way it's put. Basically if you push on a wall, that wall resists that force of your push and pushes back against you, kind of thing.
Step off a boat onto a surface and your action creates a reaction sending the boat the other way. This works perfectly for denpressure and it also works in the bullshit gravity/mass theory "IF" you are asleep to the ruse of it, which sadly many people are.
You see, people simply accept that mass exerted against mass simple push in opposite directions and no reason for it is needed.
It's the reason why people get confused by mass and weight and get laughed at when they can't figure it out.
It can't be figured out because people don't use their brains to realise that weight only exists on a measurement scale.
You cannot see something on the ground and say, " oh that weighs such and such"...because to know, you have to invent a scale to measure it.
So how does it get measured and what force is acting on the object for it to be measured?
Gravity of course: because gravity pulls on mass and that mass is measured as weight.
Sound simple enough?
Course it does. Mass can only be determined as weight when measured on a scale by the pull of gravity on that mass, because Earth is a huge ball with a iron core and what not and it's mass is greater so it pulls on the smaller objects of mass.
So now you know why things fall.

No reason for why this happens or why an ant doesn't get dragged off the floor and stuck to a mountain - you know, things like that - yet Cavendish experiments with his mass attracts mass and over a period of 46 trillion centuries, these two objects attracted. Oh, ok, I might of exaggerrated a little on the time scale.

All this weird gravity is accepted by nothing other than total and utter indoctrination. It's as strong as in the mind of a small child believing santa delivers all of his/her presents on Christmas eve and yet the indoctrinated parents allow this to happen in the name of the spirit of christmas and the excitement of the child and don't care whether the child understands that the parents scrimped and went without themselves to make sure that some bloke in a red suit - let's call him gravity claus(e) - was the sole reason as to why the kid had an exciting morning when he/she awoke to find a floor full of presents that his little mind couldn't register as being from any other person but gravity claus(e), even when the tags said, love from mam and dad.
Now who's the tin foil hat nut case?... I am....I am. Why?... because I was that kid that noticed the tags on my presents said "mam" and "dad" and realised we had a gas fire and not an open fireplace. I understood the damage santa would have done to roof tiles if he was real. I couldn't quite prove the nibbled cookies and carrots but by deduction it had to have been an inside job...but guess what? I am the nutter because I questioned this and do you know what mammy and daddy said?
They said (after rubbing my head) "don't be silly son; we heard him on the roof. He woke us up and we spied on him putting your presents out."
You see, I had to go another year confused about it because by logic, santa wasn't real - but why would people I trust, lie to me?... they wouldn't - would they?
So when do I wake up?...
It takes time but as you start to become older, you start to see it for the little fib it is...but guess what?... you took comfort in it because the belief at the time was exciting to think magical things can happen, so what do you do?
You carry it on and bullshit your own kids into exactly the same thing your parents done to you.

The thing is, it's all good...but is it really?...a lie is a lie, right?
Gravity? take a look at what it says on the tag. From "Density" and "pressure." Denpressure.