This bombsight fires up the gyro which continues to spin for a few minutes after you disconnect power. I do not know if it is ready for a bomb run but at least you can have a unit that you know works. The item “WW2 US NAVY BOMBER M7 NORDEN BOMBSIGHT With STAND GYRO FIRES UP, IT WORKS B17 B24″ is in sale since Monday, April 22, 2019. This item is in the category “Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Field Gear, Equipment”. The seller is “scubasolarman” and is located in Cave Creek, Arizona. This item can be shipped to United States.