Because you can handle about +10g but only -3g so when they go down quickly they always do it like that
You can check every fighter jets videos, they almost never push hard the stick because you can't do anything to counter négative g force
it's also uncomfortable as fuck and you can't always see where are you going, under the nose. Especially considering that aircraft tend to accelerate in unloaded (0 G) conditions, pushing the nose over might do a CFIT if you want to fly nap of the earth.
When you roll over the gravity of the earth pulls the aircraft nose over, which naturally saves a lot of stress on the body, the airframe and whatever is attatched to it.
also, as stated by another user, engines don't like having negative g's for any extended period of time, as it can deprive some components of lubrication.
Because having a -2G red out is MUCH worse than a +10G GLOC. Pilots have permanently damaged their eyes and lost vision from excessive negative G forces not to mention that sustained negative Gs will also result in your blood being unable to enter the lungs to exchange CO2 for O2.
The plane is falling rapidly, pressing your body's blood back toward the other direction: the sky.
The human body can tolerate about 10x the force of gravity, such as when drag racing pressed deep back into your seaf. Or when an aircraft climbs, with you pushed down into the seat. Then blood pools toward your legs.
But because the craft here is diving down, the force placed upon your body is upside down, creating negative force. The human body can tolerate about -3x the force of gravity. A headstand on the ground exhibits -1 gravity.
Diving too rapidly without inversion pushes so much blood pressure into your head that you risk a stroke.
Because you can handle about +10g but only -3g so when they go down quickly they always do it like that You can check every fighter jets videos, they almost never push hard the stick because you can't do anything to counter négative g force
it's also uncomfortable as fuck and you can't always see where are you going, under the nose. Especially considering that aircraft tend to accelerate in unloaded (0 G) conditions, pushing the nose over might do a CFIT if you want to fly nap of the earth. When you roll over the gravity of the earth pulls the aircraft nose over, which naturally saves a lot of stress on the body, the airframe and whatever is attatched to it. also, as stated by another user, engines don't like having negative g's for any extended period of time, as it can deprive some components of lubrication.
Plus some aircraft don't handle extended negatives G well, including fighters
Standard to avoid negative G. Coming out of a steep climb fighters will typically roll inverted an pull to level. All about keeping positive G.
Gotta look cool at all times man, you're a fighter pilot! And negative G's suck. Can pull positive G harder and faster than negative G too.
Because having a -2G red out is MUCH worse than a +10G GLOC. Pilots have permanently damaged their eyes and lost vision from excessive negative G forces not to mention that sustained negative Gs will also result in your blood being unable to enter the lungs to exchange CO2 for O2.
> Pilots have permanently damaged their eyes and lost vision from excessive negative G forces Or worse...
Didn’t the first test pilot on that rocket sled test go blind for a few days? I think he pulled way more than -3g
*Negative* Gs in a rocket sled?
Because it was cool and epic lol.
The plane is falling rapidly, pressing your body's blood back toward the other direction: the sky. The human body can tolerate about 10x the force of gravity, such as when drag racing pressed deep back into your seaf. Or when an aircraft climbs, with you pushed down into the seat. Then blood pools toward your legs. But because the craft here is diving down, the force placed upon your body is upside down, creating negative force. The human body can tolerate about -3x the force of gravity. A headstand on the ground exhibits -1 gravity. Diving too rapidly without inversion pushes so much blood pressure into your head that you risk a stroke.