Event Brief
SR-71 Blackbird mission limited by liquid nitrogen supply
By The BriefBrief · Sources (1)
Filed: Sep 13, 2026 at 7:00 PM ET
Summary: The SR-71 Blackbird’s record flight of more than 15,000 miles in 10 hours 30 minutes with five aerial refuelings was constrained by consumables rather than fuel, engines, or crew. The mission cap was 212 liters of liquid nitrogen in Dewar flasks and triethylborane for afterburner relights after each descent and climb.
WHO: US Air Force SR-71 Blackbird program
WHAT: A record SR-71 Blackbird flight was limited by consumables: liquid nitrogen and triethylborane for afterburner relighting.
WHEN: Sep 12, 2026 at 8:00 PM ET
WHERE: USA
WHY: The mission limit was the amount of liquid nitrogen (212 liters) and triethylborane available for afterburner relighting after each aerial refueling descent and climb.
Hillsborough residents concerned about dengue cases
Dengue
Sep 13, 2026 at 7:00 PM ET
Australian HMAS Waller penetrated US carrier screen in
Hmas Waller
Sep 13, 2026 at 7:00 PM ET
North Korea conducts live-fire drill of artillery, missiles
North Korea
Sep 13, 2026 at 6:10 PM ET
AI leaders urge slower pace for Australia’s AI build
Australia
Sep 13, 2026 at 6:09 PM ET
