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For strong emission signature of exhaust plumes, afterburning of fuel-rich gases is optimum for invisibility.

For strong emission signature of exhaust plumes, afterburning of fuel-rich gases is optimum for invisibility. Correct Answer False

Exhaust plumes with strong emission signatures easily detectable. Afterburning will enhance such an emission. For stealth aircraft, this isn’t an ideal mode of operation, unless the emission signature can be well suppressed.

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1. Decrease in compression ratio
2. Exhaust gas recirculation
3. Use of 5% lean mixture
4. Use of oxidation catalysts in exhaust manifold.
The correct methods are