Exploration Flight Test-1
| Launch of EFT-1 on 5 December 2014 | |
| Names | Orion Flight Test-1 (OFT-1) | 
|---|---|
| Mission type | Technology demonstration | 
| Operator | NASA | 
| COSPAR ID | 2014-077A | 
| SATCAT no. | 40329 | 
| Mission duration | 4 hours, 24 minutes | 
| Orbits completed | 2 | 
| Spacecraft properties | |
| Spacecraft | Orion CM-001 | 
| Spacecraft type | Orion | 
| Manufacturer | Lockheed Martin | 
| Start of mission | |
| Launch date | 5 December 2014, 12:05 UTC (7:05 am EST) | 
| Rocket | Delta IV Heavy | 
| Launch site | Cape Canaveral, SLC-37B | 
| Contractor | United Launch Alliance | 
| End of mission | |
| Recovered by | USS Anchorage | 
| Landing date | 5 December 2014, 16:29 UTC (8:29 am PST) | 
| Landing site | Pacific Ocean, 640 mi (1,030 km) SSE of San Diego (23°37′N 114°28′W / 23.61°N 114.46°W) | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Apogee altitude | 5,800 km (3,604 mi) | 
Exploration Flight Test-1 or EFT-1 (previously known as Orion Flight Test 1 or OFT-1) was a technology demonstration mission and the first flight test of the crew module portion of the Orion spacecraft. Without a crew, it was launched on 5 December 2014 at 12:05 UTC (7:05 am EST, local time at the launch site) by a Delta IV Heavy rocket from Space Launch Complex 37B at the Cape Canaveral Air Force Station.
The mission was a four-hour, two-orbit test of the Orion crew module featuring a high apogee on the second orbit and concluding with a high-energy reentry at around 8.9 kilometers per second (20,000 mph). This mission design corresponds to the Apollo 2/3 missions of 1966, which validated the Apollo flight control system and heat shield at re-entry conditions planned for the return from lunar missions.