- Pad 34 (1)
- Saturn-1 (1)
- 06/05/61 - LC-34 dedicatation
- 08/15/61 - S-1 Stage ondock at KSC
- 08/15/61 - S-IV (dummy) Stage ondock at KSC
- 08/15/61 - S-IU ondock at KSC
- 09/06/61 - Full tank pressurization test
- 10/27/61 - Launch
- Dummy second (S-4) weighing 25,000 lbs and ballasted with 90,000 lbs
- (11,000 gallons of water), Dummy third stage (S-5) weighing 3,000
- lbs and ballasted with 100,000 lbs (12,000 gallons of water).
- Research and Development of the S-1 launch vehicle. Test of
the S-1 stage propulsion and verify the structure and aerodynamics
of the vehicle.
- October 27, 1961 10:06 a.m. Fully fueled and ready to go, the
Saturn weighed 925,000 lbs. The first stage was loaded with 600,000
lbs of propellant (kerosene fuel and liquid oxygen).
Prelaunch preparation began at 7:00am
on 10/26/61. Mechanical Office tasks included inspection of the high
pressure gas panel, cable masts, and fuel masts; ordnance installation;
and preparation of the holddown arms. The propellant team filled the
launch vehicle's tanks to the 10% level, using a slow, manual procedure
of approximately 750 liters per minute to check for leaks. A leak in
the fuel mast vacuum breaker was detected and easily repaired and at
2:30pm the launch team cleared the pad for the automatic "fast fill"
operation. Fuel flowed into the launch vehicle at 7570 liters per
minute reaching the 97% level in about 35min. The propellants team
then reverted to the "slow fill" procedure until the vehicle was
topped off at 103% of the required RP-1. The ten hour countdown
began at 11:00pm as LC-34 switched to the Cape's emergency
generating plant. Loading of the liquid oxygen started after 3:00am
(T-350). The Saturn LOX tanks were 10% filled to check for leaks in
the vehicle or in the 229 meter tranfer line, as well as precool the
line for the fast flow of super-cold LOX.
- Two hours from the 9:00am scheduled liftoff, an unfavorable weather
report prompted launch officials to call a hold. The count resumed at
7:34am and the launch team rolled the service structure back to its
parking area. The propellants team configured the LOX facility for
fast fill (9500 liters per min) at T-100 and the blockhouse doors
were swung shut at T-65 min. Launch officials, concerned that a
patch of clouds over the Cape might obsure tracking cameras, called a
second hold at 9:14am. Within half an hour, the countdown resumed.
- Launch came when the ground launch sequencer ordered the firing of
a solid propellant charge. The gases from the ignition accelerated
a turbine that in turn drove fuel and LOX pumps. Hydraulic valves
opened, allowing RP-1 and LOX into the combustion chambers, along with
a hypergolic fluid that ignited the mixture. The engines fired in pairs,
developing full thrust in 1.4 seconds. A final rough combustion check
was followed by ejection of LOX and RP-1 fill masts from the booster
base. The four hold-down arms released the rocket 3.97 seconds after
first ignition and SA-1 was airborne. [Moonport - A History of
Launch Facilities and Operations. Charles D. Benson and William B.
Faherty. NASA SP-4204 page 62].
- Altitude: 137km
- Inclination: xxx degrees
- Orbits: (suborbital)
- Duration: Days, hours, min, seconds
- Distance: 344km downrange
- 10/27/61. Impact in the Atlantic ocean 344km downrange
Click Here for Newer Missions
- The only major difficulty that turned up with SA-1 was an unanticipated
degree of sloshing of propellants in the vehicle's tanks. Beginning with
vehicle SA-3, additional antislosh baffels were installed. SA-1 was
heavily instrumented with nearly 400 of SA-1's 510 telemetered readings
concerned with propulsion, temperature or pressure. Other measurements
included strain, vibration, flight mechanics, steering control,
stabilized platform, guidance, RF, voltage and current.
Click Here for more information about SA-1
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Last Updated Friday June 29 11:53:43 EDT 2001
Jim Dumoulin (firstname.lastname@example.org)