Amazon.com: Hawkins silver Stainless Steel, Rubber, Aluminium Vent Weight Safety Valve Bundle/Set of Hawkins Gasket Whistle A10-09, B10-10 H10-20 for Classic/Contura and 2 to 3 L Pressure Cookers - Set of 3 :
Fairchild Republic A-10 Thunderbolt II - Wikipedia
A-10 Pilot Awarded Distinguished Flying Cross for Landing Without Canopy, Landing Gear | Military.com
A10 Warthog Thunderbolt: Known as the Tank Buster!