Then what is it?? Maybe you are now Inching close to unstable or slightly unstable??
By definition, Neutral static stability is when jet's lift surface get disturb by the air cause deviation in a flight path which is neither can self correct ( No positive stability) nor deviate further and further ( No negative stability ). Means jets remain stable but flight path change.
A fifth class student now can tell us where this principle can be used??? In general, Ofcourse less maneuverable aircrafts, like trainers or Aircraft with less thrust to weight ratio.
Further I will explain you later but before that tell me about "relax static stability"???
Literally I said it clearly all non fbw 4th gen have slightly positive but close to neutral static stability.
And the reason they have slightly is because to counter the induced instability. What is that instability you said it well to remain in a new state after external disturbances and not returning to it.
Now here no fbw is needed as it is easily conrolled.
Induced instability is reduced if airframe has slight positive static stability. No mig29 or f15 is not truly an neutral static stability platform. Gone f4 days which had +ve static stability.
Now you don't even know properties of u stable design and how it is exploited.
A unstable design will have -ve static stability. Which if even little control surface is deviated it will keep muneuvering in the direction at a rate. It won't stop.
Which means with using very little control surfaces the aircraft will do muneuver. So here is the energy saved as no control surfaces were used to do long muneuvers. The aircraft itself has tendancy with very little input but it will keep on doing that muneuvers and which can't be stopped so here u need fbw. The aircraft keep deviating in the disturbance with a high rate. This is what is used & needed even 4th standard kid would tell were this can be used. You don't even unstable designs properties and just writing bs.
To limit instability for controlled flight. So aircraft doesn't need use its extra control surface which causes drag and drains out the energy during combat.
Now how does neutral static stability help in this equation??
It just remain in the new state of disturbance without any increase at a rate.
So how could they exploit this in real platform???
You will need to use full control surface for needed munuevers as aircraft is not intentionally unstable.
For same result unstable aircraft with just slight input can deliver without generating the control surfaces drag & stress on frame.
Fbw is there to use this in controlled manner.
Now u tell me why you call neutral design unstable. Do they add upto muneuverability. They just remain in the new state.
While -ve static stability means instability.
you're brains lacks the stability
