Stealth Technologies

[overscan]

A good starting point might be the Su-27 RCS reduction studies, as a similar fighter.

The main idea was to reduce frontal RCS only.

The engine intakes have a high performance RAM between 0.7mm and 1.4mm thick on the intake ducts and 0.5mm thick on the fan blades reduces the intake RCS 10-15dB, which measure alone halves the Su-27 frontal RCS.

The other measures include a treated cockpit canopy (alternating metallic and polymer layers, using plasma deposition) and hand held sprays to treat external munitions.

Of course, these measures would be pretty easy to model

I'd go with conformal weapons carriage too.

[elmayerle]

A good starting point might be the Su-27 RCS reduction studies, as a similar fighter.

The main idea was to reduce frontal RCS only.

The engine intakes have a high performance RAM between 0.7mm and 1.4mm thick on the intake ducts and 0.5mm thick on the fan blades reduces the intake RCS 10-15dB, which measure alone halves the Su-27 frontal RCS.

The other measures include a treated cockpit canopy (alternating metallic and polymer layers, using plasma deposition) and hand held sprays to treat external munitions.

Of course, these measures would be pretty easy to model

I'd go with conformal weapons carriage too.

Agreed.  One other simple fix is a RCS blocker/flow straightener such as was used in the X-32.  Depending on the inlet duct consruction, fitting RAM without compromising inlet performance can be a simple effort or a complicated one, but it does pay off.  *smile* That's sometime I'm familiar with (long story I'm not sure I can tell   ).  A redesign of the inlets to rhomboid like those of the YF/F-22 has virtue in that it reduces the number of moving parts on the aircraft in addition to reducing the RCS, but it's not ipso facto necessary as various material/coating choices can help a good bit.