As a glider pilot, artificial horizont is very rare. All you got is speed, vertical speed, altimeter.
Once blind, your first prio is to keep the speed and vertical speed indicator constant. The problem is, without artificial horizont you cant really tell your bank angle, and your feelings just straight up lie to you. So you think you going straight, but suddenly your speed starts increasing. So you think "I am prolly nose diving a bit", and pull to compensate, only for speed to not decrease as much as youd like (or not at all), and suddenly you feel you are pulling 3g, and then you notice your altitude is dropping like crazy.
Thats how you get into diving spiral, and worst thing is you still have no idea if you are spiraling left or right. Keep it up for few more seconds and you can easily exceed safe speed, which given the g-forces is much lower than actual maximum speed in clean air. And a second or two later your first wing decides to go different direction than the rest of the plane.
I tested this with my instructor once, where we flew into a cloud just slightly above its bottom edge, with the goal of "try to fly trough it", only to find myself spinning out of the bottom with exactly this situation. We were prepared with brakes, lots of space beneath us and cleared general area of other planes, and checked beforehand theres no themral beneath to suck us higher, but that memory clearly showed how unintuitive and dangerous flying trough clouds often is.
Once blind, your first prio is to keep the speed and vertical speed indicator constant. The problem is, without artificial horizont you cant really tell your bank angle, and your feelings just straight up lie to you. So you think you going straight, but suddenly your speed starts increasing. So you think "I am prolly nose diving a bit", and pull to compensate, only for speed to not decrease as much as youd like (or not at all), and suddenly you feel you are pulling 3g, and then you notice your altitude is dropping like crazy.
Thats how you get into diving spiral, and worst thing is you still have no idea if you are spiraling left or right. Keep it up for few more seconds and you can easily exceed safe speed, which given the g-forces is much lower than actual maximum speed in clean air. And a second or two later your first wing decides to go different direction than the rest of the plane.
I tested this with my instructor once, where we flew into a cloud just slightly above its bottom edge, with the goal of "try to fly trough it", only to find myself spinning out of the bottom with exactly this situation. We were prepared with brakes, lots of space beneath us and cleared general area of other planes, and checked beforehand theres no themral beneath to suck us higher, but that memory clearly showed how unintuitive and dangerous flying trough clouds often is.