It's possible. The heat signature is well-hidden on the B-2, YF-23, F-117, and A-10. Yes, from the perspective of ground-launched IR-seeking missiles, the A-10 is actually stealth. The tail wraps around the engines as seen from many angles on the ground.
Generally, it also helps to fly toward the enemy. This is a bit of extra incentive to not wimp out and flee. :-)
The F-35 is a bit of a failure with the heat signature. The tail heats up from the engine exhaust. There are prohibited maneuvers that damage the tail due to heat.
Aircraft don't have to be perfect about heat signatures. They aren't in a cold vacuum, and the enemy isn't flying the James Webb Space Telescope.
Generally, it also helps to fly toward the enemy. This is a bit of extra incentive to not wimp out and flee. :-)
The F-35 is a bit of a failure with the heat signature. The tail heats up from the engine exhaust. There are prohibited maneuvers that damage the tail due to heat.
Aircraft don't have to be perfect about heat signatures. They aren't in a cold vacuum, and the enemy isn't flying the James Webb Space Telescope.