I can’t pull live tool results this turn, but I can share what’s generally known about Apollo 10’s reentry speed and where to find the latest details.
Answer:
- Apollo 10 reentered Earth’s atmosphere at historically high speeds for crewed missions, with figures reported around 11,000 mph (roughly 19,000–20,000 km/h) at entry and peaking higher just before atmospheric interface. The fastest-reentry speeds among crewed missions are associated with lunar-return trajectories like Apollo 8, 10, and later missions, and Apollo 10 remains among the record-holders for rapid entry. For the most precise, mission-specific numbers (velocity vs. time, entry interface velocity, maximum g-load), consult the NASA Apollo 10 Flight Journal and NASA history pages that tabulate entry speeds and deceleration profiles.
What to check for the latest, precise figures:
- NASA Apollo 10 Flight Journal: Day-by-day and hour-by-hour velocity data around Entry Interface and splashdown [NASA history pages].
- NASA history artifacts on reentry and recovery that include charts of velocity, deceleration (g-load), and timing.
If you’d like, I can summarize the exact numbers from the NASA sources you’re interested in or assemble a quick comparison table of Apollo lunar-return speeds (Apollo 8, 10, 11, and 17) using publicly available mission flight journals.
Sources
Apollo 10 re-entered the atmosphere on May 26, 1969 at almost 40,000 km per hour, which is 11.08 km/second or 24,791 miles per hour. To date, Apollo 10 holds the record for the fastest manned reentry in history.
qa.answers.comFifty-seven years ago, three men hurtled toward Earth inside a ball of violet flame, moving faster than any humans before or since.
indiandefencereview.comApollo 10 was NASA’s dry run to the Moon, just months before humanity attempted to land on the lunar surface
www.skyatnightmagazine.comApollo 10 was the fourth manned mission in the United States Apollo space program, and the second (after Apollo 8) to orbit the Moon. Launched on May 18, 1969, it was the F mission: a "dress rehearsal" for the first Moon landing, testing all of the components and procedures, just short of actually landing. The Lunar Module (LM) came to within 8.4 nautical miles (Template:Convert/round km) of the lunar surface, the point where the powered descent to the lunar surface would begin. Its...
nasa.fandom.com"Tom Stafford (Apollo 10 again) asserted in his own 2002 biography We Have Capture that his entry speed was 28,547mph, which works out at 41,869ft/sec – faster than a return from Mars!" I have a copy of the book in front of me, and this is what it actually says: … Once again Mary Bennett's words: "Tom Stafford (Apollo 10 again) asserted in his own 2002 biography We Have Capture that his entry speed was 28,547mph, which works out at 41,869ft/sec – faster than a return from Mars!" JayUtah in #134:
www.pandualism.comFrom Apollo mission reports here Apollo 7 and 9 were earth orbit, slower reentry. Apollo 8 and 10 through 17 were lunar missions with high speed reentry of the command module. Apollo 11,12, and 14-17 were landing missions. Useful graphs for Apollo 8, 10, and 11. I cannot find useful entry information after Apollo 11, so these three sets are hopefully representative of the other six lunar missions. … EI timeLoad gV f/srange n mi° BankRdot f/s 0:000.000361901593 0:280.049362761418...
launchloop.comThis velocity will increase dramatically in the last couple of hours prior to Entry Interface. At 2 hours prior to entry, the speed will be about 14,500 feet per second [4,030 m/s]. One half hour later it will have increased by 2,000 feet per second [556 m/s], up to about 16,120 [fps, 4,478 m/s], and in another half hour, 1 hour prior to entry, the velocity will be up to 18,696 feet per second [5,193 m/s].
www.nasa.gov