Martian2
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How come I never hear you pointing out the Pak Fa's airfoil?No, the fail is on YOU, for failing to understand what I tried to teach you guys a long time ago.
In designing a low radar observable body, there are three main rules of control:
- Quantity of radiators
- Array of radiators
- Modes of radiation
Rule 1: There is no set quantity of radiators. What this rule mean is that you should minimize the quantity of structures that would be in the radar beam.
Rule 2: A single vertical stab for yaw axis control and stability have been the norm for decades. But for a low radar observable design, a single vertical stab would mean a pair corner reflectors created between the vertical stab and the aircraft's body. So in using twin canted vertical stabs to avoid the critical 90 deg corner reflector, you are less obedient to rule 1. You did not violate rule 1. Just less obedient to it.
Rule 2: There are many modes of radiation. The surface wave mode is one of them. Absorber to control surface waves would deny the enemy's radar much of this mode of radiation.
You can have a requirement that a body be low radar observable, but if the quantity of radiators elevates your design above a certain threshold, your design failed your requirement. So just because an experimental design have canards and the low radar observable requirement, that does not mean both are natural allies with each other.
For all we know, those experimental aircrafts may have low radar observable requirement, but it was the canards that raised the overall RCS to over that threshold.
It's basically a canard attached a little further back on the fuselage.
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