The SR-71 crew who training in anti-SAM tactics left a 5-mile-long contrail in the stratosphere after dumping fuel for 10 seconds to see if the afterburner would ignite the fuel trail

By Linda Sheffield Miller
Aug 11 2024

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The Blackbird

The SR-71 crew who training in anti-SAM tactics left a 5-mile-long contrail in the stratosphere after dumping fuel for 10 seconds to see if the afterburner would ignite the fuel trail

The SR-71, unofficially known as the “Blackbird,” is a long-range, advanced, strategic reconnaissance aircraft developed from the Lockheed A-12 and YF-12A aircraft. The first flight of an SR-71 took place on Dec. 22, 1964, and the first SR-71 to enter service was delivered to the 4200th (later 9th) Strategic Reconnaissance Wing at Beale Air Force Base, Calif., in January 1966. The U.S. Air Force retired its fleet of SR-71s on Jan. 26, 1990.

B-58 navigator recalls dropping Mark-53 nuclear bomb (without plutonium pit) while flying at 500 feet and at 628 knots, low level recce missions, dinner with Doolittle Raiders and Jimmy Stewart
CLICK HERE to see The Aviation Geek Club contributor Linda Sheffield’s T-shirt designs! Linda has a personal relationship with the SR-71 because her father Butch Sheffield flew the Blackbird from test flight in 1965 until 1973. Butch’s Granddaughter’s Lisa Burroughs and Susan Miller are graphic designers. They designed most of the merchandise that is for sale on Threadless. A percentage of the profits go to Flight Test Museum at Edwards Air Force Base. This nonprofit charity is personal to the Sheffield family because they are raising money to house SR-71, #955. This was the first Blackbird that Butch Sheffield flew on Oct. 4, 1965.

During its operational lifetime, the SR-71 provided intelligence about the Yom Kippur War in 1973, the Israeli invasion of Lebanon in 1982, the US raid on Libya in 1986 and the revelation of Iranian Silkworm missile batteries in 1987. The USAF ceased SR-71 operations in January 1990.

Throughout its nearly 24-year career, the SR-71 remained the world’s fastest and highest-flying operational aircraft. From 80,000 feet, it could survey 100,000 square miles of Earth’s surface per hour.

SR-71 crews anti-SAM tactics

In 1968 the SR-71 crewmembers spent most of their time in the crew lounge, discussing anti-SAM tactics.

As told by Paul Crickmore in his book SR-71 Blackbird (Combat Legends), as the 9th Strategic Reconnaissance Wing approached the time when they would be flying out of the country at Kadena Air Base, Okinawa.

The SR-71 crew who training in anti-SAM tactics left a 5-mile-long contrail in the stratosphere after dumping fuel for 10 seconds to see if the afterburner would ignite the fuel trail
This print is available in multiple sizes from AircraftProfilePrints.com – CLICK HERE TO GET YOURS.  Dawn at 80.000ft – SR-71 Blackbird

The plan was to penetrate enemy airspace at Mach 3. If fired upon, the pilot would accelerate to Mach 3.2 and climb, thereby forcing the missile’s guiding system to re-calculate the intercept solution. One idea was also to dump fuel to become lighter, thereby increasing the climb rate.

A 5-mile-long contrail in the stratosphere

A crew ended that debate during a Sortie over Montana by dumping fuel for 10 seconds to see if the afterburner would ignite the fuel trail. Instead, this turned instantly into an ice cloud in the fridge -55° C stratosphere and left a 5-mile-long contrail finger pointing directly at the aircraft.

The pilot reported that he could see the trail for hundreds of miles after turning back towards the west. That plan was scratched. That was the opposite effect, but they wanted regardless, the SR-71 was the first attempt at stealth in an airplane.

Be sure to check out Linda Sheffield Miller (Col Richard (Butch) Sheffield’s daughter, Col. Sheffield was an SR-71 Reconnaissance Systems Officer) Twitter X Page Habubrats SR-71, Instagram Page SR71Habubrats and Facebook Page Born into the Wilde Blue Yonder Habubrats for awesome Blackbird’s photos and stories.

Cool Video Explains how SR-71 Blackbird’s J58 Turbo-Ramjet Engine Works
This model is available in multiple sizes from AirModels – CLICK HERE TO GET YOURS.

Photo credit: David Bushell / Microsoft Flight Simulator X

Linda Sheffield Miller

Linda Sheffield Miller

Linda Sheffield co-author of Helion’s new book “Ohio to Supersonic: Flying the SR-71 to the Secret World of the Skunk Works,” Linda helped bring her father, SR-71 RSO, Col. Richard “Butch” Sheffield's book to life. Linda grew up on Air Force bases primarily at Beale Air Force Base California. The home of the SR -71. Linda is a graduate of North Dakota State University and taught public school for over a decade as a substitute teacher. Linda writes daily about the SR -71 the A-12 and the U-2 on her various social media accounts. Linda lives in the suburbs of Washington DC with her husband Rodney Miller, they are the parents of three daughters and four grandsons. She is the co-founder of the SR-71 group, Habubrats. Linda has been asked to write articles for the Distinguished Flying Cross magazine, and the Evergreen Museum newsletter. Linda enthusiastically enjoys contributing articles weekly to The Aviation Geek Club.

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