For more than four decades, the powerful engines that helped boost the Apollo 11 mission to the moon have rested in the Atlantic. Now Internet billionaire and space enthusiast Jeff Bezos wants to raise at least one of them to the surface.

An undersea expedition spearheaded by Bezos used sonar to find what he said were the F-1 engines located 14,000 feet deep. In an online announcement Wednesday, the Amazon.com CEO and founder said he is drawing up plans to recover the sunken engines, part of the mighty Saturn V rocket that launched Neil Armstrong, Buzz Aldrin and Michael Collins on their moon mission.

The five engines, which produced nearly 7.7 million pounds of thrust, dropped into the sea as planned minutes after liftoff in 1969. Four days later, Armstrong and Aldrin walked on the moon.

“We don’t know yet what condition these engines might be in,’’ he wrote. “They hit the ocean at high velocity and have been in salt water for more than 40 years. On the other hand, they’re made of tough stuff, so we’ll see.’’

Bezos acknowledged the engines were the property of NASA, but said he hoped they will be displayed in museums.

NASA expressed excitement about the find. The space agency said it has not been formally contacted by Bezos and waited for more information.

“There has always been great interest in artifacts from the early days of space exploration and his announcement only adds to the enthusiasm of those interested in NASA’s history,’’ NASA spokesman Bob Jacobs said in a statement.

No timetable has been set for the recovery. When it happens, it’ll undoubtedly take longer to hoist the 19-foot engines off the sea floor than the 2 ½ minutes it took for them to power off the launch pad.

The sea floor is littered with spent rockets and flight parts from missions dating back to the dawn of the Space Age and it’s unknown what survived decades later after crashing into the ocean.