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[Music]

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Saturn five film report number twenty

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covers progress area December first 1967

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through February 29th 1968 at the

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beginning of the quarter the second

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Saturn 5 flight vehicle stood fully

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erected in the Kennedy Space Center's

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Vehicle Assembly Building with checkout

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underway for a scheduled launch next

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quarter

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check out of the AS 502 which was

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developed under direction of the

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Marshall Space Flight Center proceeded

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throughout December in January with no

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major problems encountered AAS 502 will

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serve as launch vehicle for the Apollo 6

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mission an unmanned flight to qualify

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the Saturn 5 for future manned flights

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roll out of the 36 story tall space

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vehicle from the Assembly Building to

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pad a of launch complex 39 was

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accomplished without incident on

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February 6th the rollout operation the

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three-mile movement requiring some seven

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hours twice a s 502 in the launch

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position from which its predecessor a s

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501 began its successful flight last

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November 9th the 502 mission will be

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essentially the same as that of the 501

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evaluation of launch vehicle and

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spacecraft performance a s 502 will

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carry several minor modifications

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directed by the Marshall Center as a

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result of data provided by the initial

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launch final updated versions of both

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the flight and ground program tapes for

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the computerized countdown and launch

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were delivered to KSC by the Marshall

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Center in early February during the

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10-hour earth orbital Apollo 6 mission a

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five and a half minute s4b stage second

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burn will duplicate that of an actual

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lunar mission however the Apollo

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spacecraft after separation from the s4b

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stage will be limited to an Apogee

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12,000 nautical miles by a 4-minute

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braking burn of its propulsion system

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from its Apogee the spacecraft will

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simulate lunar mission return flight

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maneuvers including a high-speed

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re-entry into Earth's atmosphere the s4b

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stage will travel about 270 9,000 miles

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into space on a 16 day elliptical Earth

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orbit due to the moon's position at 5:02

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launch the stage will not actually swing

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around the moon as a s5o - moved closer

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to its launch date all elements of the

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third Saturn 5 flight vehicle a s 503

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were delivered to KSC from the prime

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contractors the vehicles first stage s1

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c3 arrived December 27 from Boeing the

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shoe in New Orleans the second stage s2

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3 was received on December 24th

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following acceptance firing at Marshalls

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Mississippi test facility the stage was

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built for North American rock wall at

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seal Beach California

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the third stage s for B 503 arrived by

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super guppy aircraft on December 30th

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from the McDonnell Douglas Sacramento

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Test Site in California the instrument

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unit for the third Saturn 5 flight

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vehicle was delivered to KSC on January

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4th by super guppy from the contractor

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IBM Huntsville after inspection and

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check-out of the stages an IU stacking

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of the a s 503 in the Vehicle Assembly

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Building was accomplished by the 1st of

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February topped by a mock-up of the

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Apollo spacecraft the vehicle will

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undergo extensive checkout before being

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pronounced ready for flight scheduled

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later this year the dummy spacecraft

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structure built by North American

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Rockwell was modified and prepared for

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flight use by the Marshall Center the

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boilerplate structure designated BP 30

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will be ballasted 289 thousand pounds

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for the 503 flight since the manned

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spacecraft Center in Houston has no

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mission requirements for the young man a

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5:03 BP 35 Marshall will have

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responsibility for the entire space

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vehicle s1c for the first stage for the

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fourth Saturn five flight vehicle was

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moved in late December from storage in

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the manufacturing building at Boeing the

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shoo-in to test cell number one of the

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stage test building for incorporation of

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modifications delivery of the stage to

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KSC is due in late April the first stage

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for the fifth flight vehicle is in

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storage at Boeing masu with delivery to

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KSC slated for June

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the second rs to stage four the fourth

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flight vehicle was successfully captive

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fired at MTF on February 10th for its

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full duration of six minutes to meet

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acceptance test requirements an earlier

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attempt on January 30th had been

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terminated 17 seconds after ignition due

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to a ground support equipment

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malfunction and the Delta P tank

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measurements which resulted in venting

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of the liquid oxygen and liquid hydrogen

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tanks following the successful firing

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s24 is being readied for shipment to KSC

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in late april during dye penetrant tests

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an x-ray inspection of the s2 stage for

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the fifth flight vehicle at Seal Beach

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hairline cracks were discovered in the

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liquid hydrogen tank circumferential

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weld the defective area was grooved out

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and REE welded after rigidly inspection

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using double angle x-ray and dye

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penetrant tests the stage was shipped in

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mid-february to MTF for acceptance

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firing next quarter the s2 2 stage was

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also Rhian spected at KSC prior to

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stacking and s 2 3 & 4 were rien spected

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at MTF when hairline weld flaws were

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also found in the s2 7 stage a decision

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was made to initiate an additional

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inspection procedure cryogenic proof

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testing on all man rated stages starting

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with s2 4 however depending on the

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success of the as50 to launch if NASA

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decides to fly the third vehicle manned

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the s2 3 will be unn

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sacked and sent back to MTF for the new

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test which consists of proof pressure

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testing at cryogenic temperatures the

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third stage for the fourth flight

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vehicle s for B 504 was removed from

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storage in early January and installed

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in the beta one test stand at SAC tow

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for deferred post static checkout which

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is now underway the stage will be

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delivered to KSC in late April s for B

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505 underwent insulation rework in the

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vehicle checkout lab at SAC DOE and was

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returned to storage after completion of

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liquid hydrogen tank inspection in

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mid-february the stage will undergo

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deferred post static checkout and

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modifications in March with delivery to

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KSC set for late June the instrument

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unit for the fourth flight vehicle was

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removed from storage at IBM Huntsville

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in early January for retest necessary

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after incorporation of modifications

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retest was successfully completed in

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late January and the IU is in temporary

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storage awaiting shipment to KSC in

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April component assembly on the

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instrument unit for the fifth flight

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vehicle began at IBM Huntsville in early

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January and was finished by mid February

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following checkout delivery of SIU 5:05

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to KSC

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is scheduled in late June stages and

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instrument units for subsequent saturn v

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flight vehicles continue in various

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phases of fabrication assembly check out

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and testing at contractor facilities and

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even though the initial flight test of a

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saturn v vehicle last quarter was

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successful research and development type

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tests and investigations are a

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continuing necessity to help ensure that

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all possible engineering improvements

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will be discovered and incorporated in

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future vehicles in December a Thor

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missile fuel tank which had been

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insulated with a spray on foam intended

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for use on s2 stages was installed at

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the Sacramento Test Site in preparation

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for cryogenic tanking tests McDonnell

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Douglas has been contracted by NASA to

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conduct the test program

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for North American Rockwell builders of

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the s2 stage purpose of these tests is

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to evaluate the new type insulation

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material and to verify new insulation

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field repair techniques although some

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delays have been encountered due to bad

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weather testing is expected to be

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completed in March a three-part s2

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lightweight structure will test program

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for major stage segments is underway at

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Marshall and Santa Susana California the

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a structure made up of s2 for type LOX

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tank at skirt and cylinders one and two

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is undergoing systems installation than

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instrumentation at MSFC in preparation

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for structural testing next quarter s2 4

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is the first of the lightweight stages

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due to thinner propellant tank walls and

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lighter structures s2 4 types stages

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will weigh about 3,000 pounds less than

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earlier stages allowing a comparable

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increase in Saturn 5 vehicle payload

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capability a new 64 foot tall structural

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test tower is under construction at

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Marshall for use in testing da structure

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the stand is expected to be finished and

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ready for operation and April the B

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structure consisting of s 2 4 type upper

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tank section forward dome and forward

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skirt is now undergoing structural

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testing at Santa Susana with result

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still incomplete testing of the C

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structure which includes s2 for type F

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skirt thrust cone and center engine beam

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is in progress in the load test tower at

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Marshall and will continue during the

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next report period all phases of the s2

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lightweight structural test program are

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expected to be completed in September a

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series of j2 engine tests now being held

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at the Arnold engineering development

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center Intelli home Tennessee has two

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primary objectives establishment of the

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lower bounds for fuel pump Inlet

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pressure on the engine in the s2 stage

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configuration and verification of the j2

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s capability to restart satisfactorily

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after an s4 b stage orbital Coast period

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of 80 minutes instead of 90 minutes as

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presently programmed

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test results to date have been positive

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but a second engine sample is scheduled

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to fully verify these conclusions with

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the second Saturn 5 flight vehicle now

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on the launch pad the third flight

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vehicle erected and in check-out and

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assembly and testing of subsequent

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vehicles well underway this report

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period witnessed continuing progress