gambit
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In the USAF, we have three flight status codes: 1, 2, and 3. Every time a jet land, the aircrew, whether the jet is a fighter or a heavy, give Maintenance a run down. Anything wrong, no matter how trivial, is reported.
To give everyone an example...
The above Turbine Inlet Temp (TIT) indicator. The green and red range markers are simple paper tape. If any is peeling, it is written up.
Code One is mission ready. Zero defects. After the crew chief completed post flight inspection such as oil sample, fuel top off, de-arm, etc. The jet is returned to the roster.
Lockheed had a magazine called Code One.
http://www.codeonemagazine.com/index.html
Code Two are minor defects. For the above TIT example, if the range mark tape is peeling, this would be a Code Two. Most Code Two are fixed by the crew chief without involving any specialists. If a part is not in stock, the jet is allowed to Fly As Is (FAI).
Code Three are major defects. For the above TIT example, if the indicator somehow became inop in flight, that would be an IFE and immediate abort. It does not matter if other engine indicators are normal and the engine(s) responds to throttle commands. The indicator must work. If the indicator shows the engine out of range -- high or low -- that would also be an IFE and a Code Three upon landing.
The F-22 is allowed to fly as is. Think about that...
To give everyone an example...
The above Turbine Inlet Temp (TIT) indicator. The green and red range markers are simple paper tape. If any is peeling, it is written up.
Code One is mission ready. Zero defects. After the crew chief completed post flight inspection such as oil sample, fuel top off, de-arm, etc. The jet is returned to the roster.
Lockheed had a magazine called Code One.
http://www.codeonemagazine.com/index.html
Code Two are minor defects. For the above TIT example, if the range mark tape is peeling, this would be a Code Two. Most Code Two are fixed by the crew chief without involving any specialists. If a part is not in stock, the jet is allowed to Fly As Is (FAI).
Code Three are major defects. For the above TIT example, if the indicator somehow became inop in flight, that would be an IFE and immediate abort. It does not matter if other engine indicators are normal and the engine(s) responds to throttle commands. The indicator must work. If the indicator shows the engine out of range -- high or low -- that would also be an IFE and a Code Three upon landing.
The F-22 is allowed to fly as is. Think about that...
Wrong. I explained why on this forum yrs ago. See if you can find out why.You can get it down to a raindrop. Unfortunately, modern (as in 70's era) RADARs can see raindrops just fine....and doppler effect means that you are screwed anyway, no raindrop moves as 500 knots.
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