Here are some observations;
does a pilot typically carry a water container/supply?
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Yes typically there is a water bag in most mil service vest, used to be flask, but now replaced by sealed water pouch's 4 oz.
Also the general kit has another water bag, plus a condom for the additional storage.
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I thought the Spark-Lite specifically created for aviation
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Yes your right, almost all of the mil kits now have the spark-lite, and a consideration is the potential of one handed use, which you will find difficult with ferocerium (synthetic flint) rods.
I have tried and own all of the above and the magnesium block (DOANS) as well. Each has it's pros and cons.
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Evation Charts
Close enough.
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GPS - He mentions having a GPS with maps, but I'm wondering if maps are typically available for areas of conflict?
Yes they are, also there is the MGRS / LAT&LONG issue as well.
Aviation uses LAT LONG, ground forces typcially MGRS.
But charts are provided.
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US Knife - Does anyone know what kind of knife this is?
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It's the stainless steel knife that some call the demo knife (for demolitions)
Spear point,can opener,awl-reamer,screwdriver and bail hook for lanyard.
For a lot of aviators you could wind up packing three;
US,
MC-1 with shroud cutting hook (automatic opening).

Used to be the Camilus "Pilots" knife called knife,hunting actually.
Now it's the ASEK (aircrew survival and egress knife) with intregal strap cutting tool and ceramic sharpener. Also nice nylon leg sheath now instead of making an already bulky vest even more bulky.
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Right Angle Flashlight - Why do they use right-angled lights?
Well to drive you crazy. No actually the idea is to attach to vest or equipment and use hands free. Comes with night vision saving colors usually red and a diffuser too (for even lighting).