Launch of MA-2
|Mission type||Test flight|
|Mission duration||17 minutes, 56 seconds|
|Distance travelled||2,305 kilometres (1,432 mi)|
|Apogee||183 kilometres (114 mi)|
|Launch mass||1,154 kilograms (2,544 lb)|
|Start of mission|
|Launch date||February 21, 1961, 14:10UTC|
|Rocket||Atlas LV-3B 67-D|
|Launch site||Cape Canaveral LC-14|
|End of mission|
|Landing date||February 21, 1961, 14:28UTC|
Test objectives for this flight were concerned with the ability of the spacecraft to withstand reentry under the temperature-critical abort conditions and with the capability of the Atlas to meet the proper injection conditions. Convair had promised to deliver thicker-skinned Atlas vehicles for subsequent flights, however Missile 67D was the last of the thin-skinned model and so it had to be modified for the Mercury mission, incorporating a stainless steel reinforcing band installed around the vehicle between stations 502 and 510. A thin sheet of asbestos was installed between the reinforcing band and the tank skin. This modification was installed as a precaution against the type of failure which had occurred on the previous MA-1 flight. The booster's flight path was also modified somewhat from Mercury-Atlas 1, being placed on a more shallow trajectory so as to reduce aerodynamic loads.
The Atlas lifted into a clear blue February sky quite different from the cloudy, foggy weather of the MA-1 flight. Everyone in the blockhouse waited nervously for the vehicle to pass through the critical Max Q zone. When it did so successfully, there was "enormous jubilation" from the launch team. MA-2 flew a successful suborbital mission that lasted 17 minutes 56 seconds. Altitude reached was 114 miles (183 km), speed, 13,227 mph (21,287 km/h). All test objectives were fully met, the only problems being a bit of propellant slosh. The capsule was recovered 1,432 miles (2305 km) downrange. Peak acceleration was 15.9 g (156 m/s²). Mass 1,154 kg.
- Loyd S. Swenson Jr., James M. Grimwood, Charles C. Alexander (1966). "10". This New Ocean: A History of Project Mercury - NASA SP-4201. NASA Special Publication-4201 in the NASA History Series. p. 4. Archived from the original on 2007-08-23. Retrieved 26 June 2013.CS1 maint: uses authors parameter (link)
- "Mercury spacecraft #6 display page on A Field Guide to American Spacecraft website". Archived from the original on 2010-07-05.