I complained that the 81C missile is smokeless based on multiple documents, but he denies it with two images. Apparently they can make a decision with less documentation than we can.
bugreport
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Type 81C missile is not smokeless. It only got a little less smoking engine at the start of launch (what is similar to what can be seen in game).
Also TRDI 50th doesn’t state it’s engine as smokeless.
Spoiler
The propellants used in solid rocket motors are smokeless double base and smoke composite. The former are used in the boosters of the medium MAT and new heavy MAT anti-tank guided missiles, and surface-to-ship guided missiles. This type of propellant has been made more efficient by using nitramine. The latter is now dominated by HTPB (hydroxyl-terminated polybutadiene) instead of the conventional CTPB (carboxyl-terminated polybutadiene), and detailed data has been accumulated through research and prototypes by the Second Department of the Third Research Institute. Examples of its applications include portable SAM, short-range SAM (improved), dogfighting missiles, new medium-range air-to-air guided missiles, and future SAM
Video of launching Type 81C:
And launching of previous made missile:
You can see how much smoking earlier missile at the start but in flight both missiles are smoking
The image you cropped out shows research on the HTPB propellant itself, which will be mainstream in the future. If you scroll down to the bottom of that PDF, you will see that they were researching smokeless CDB rocket engines.
Spoiler
The section on Type 81C says that “all weather” and “improved concealment” can be improved by adopting ARH and changing propellants. It is probably about all-weather use, since the ARH is not affected by rain or night. If that is the case, the improvement of secrecy is a change in propellant.
The research and prototyping period for the smokeless CDB rocket engine is also the same period.
Spoiler
And there is a link in the bug report, but what is the reason for not using aluminum as stated in the Type 81C’s formality outline in the web archive? That is answered in SAM-2B. The reason is to achieve smokeless by not using aluminum.
Are the ones in the game smoke emissions from combustion reactions or something else, e.g., the first possibility is water vapor, but is it smoke emissions from that?
This is important as it relates to AAM-3. The AAM-3 is now smokeless. But I have not seen anything written about not using aluminum. If that is the case, then the AAM-3 is smoking. The “格闘戦用ミサイル” in the image you cropped out is the AAM-3.
If the game is reproducing smoke from another source, such as water vapor, or if this is just my layman’s idea, forget it.
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In that part of fuel you can see that they describe both smokeless and HTPB propellants. Smokeless is used only in ATGMs and booster of SSM. HTPB is used on Type 81C and it is not smokeless. I don’t know should AAM-3 smoking or not because of that.
But anyway if you have a footage of full smokeless launching and fly of Type 81C - it would be very good
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