This is at 20 degrees Celsius, so it's a nice comfortable temperature at sea level, which is roughly about 760 miles per hour. Now if the temperature were to drop, so if temperature goes down, so does the speed of sound. And likewise, if the temperature goes up, the speed of sound goes up.
One single company won more than three-quarters of these funds, however, in a single contract win: Hellfire Systems. Hellfire, as we've discussed in the past, is the wholly owned Lockheed Martin (NYSE:LMT) subsidiary that manufactures Hellfire air-to-ground missiles for the military.
Electric Propulsion Sub-Systems. Aerojet Rocketdyne is the world leader in the development, qualification, and flight of electric propulsion sub-systems and components. Aerojet Rocketdyne has delivered more than 500 flight electric propulsion systems. Aerojet Rocketdyne also designs, develops and produces the power processing units (PPUs) that power electric thrusters.