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[Music]

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the highlight this report period was the

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successful flight of the fourth Saturn

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1b launch vehicle using the overall

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flight designation of Apollo 5 the SI

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204 launch vehicle had been on the pad

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at KSC for approximately 18 months

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during this time period corrosion and

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electrical inspections were conducted as

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well as a complete operational system

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safety review the Apollo 5 space vehicle

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a s 204 LM 1 was launched on January

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22nd 1968 liftoff was scheduled at 1900

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GMT with one six-hour built in hold at t

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3:30 or true rest and unscheduled work

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an unscheduled hold of three hours and

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48 minutes duration occurred at t 2:30

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because of two problems one hour 28

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minutes of this hold was attributed to

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ground support equipment associated with

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a spacecraft environmental control

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system and the remaining hold period was

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attributed to failure of a power supply

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liftoff was at 5:48 p.m. Eastern

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Standard Time from complex 37b

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engineering evaluation of the a s 204

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Saturn 1b launch vehicle the final R&D

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vehicle in the 1b program indicates that

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all the primary and secondary mission

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objectives were successfully achieved

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this launch vehicle performed closer to

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nominal than any Saturn vehicle to date

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primary launch vehicle mission

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objectives

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evaluation of the launch vehicle

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attitude control system and maneuvering

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capability verification of s4b liquid

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hydrogen and oxygen tank pressurization

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characteristics demonstration of nose

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cone separation and evaluation of

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operational adequacy of the launch

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vehicle systems including guidance

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control electrical mechanical and

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instrumentation minor performance

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deviations were noted and action is

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being taken to prevent these in future

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vehicles because of the combined success

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of both launch vehicle and lunar module

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hardware the backup mission of a s 206

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all other Saturn 1b stages are on or

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ahead of schedule highlighting the

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booster stages activity during this

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quarter was the static testing of s 1b

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11 at MSFC as a result of combustion

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stability tests on R&D engines at the

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neo show test facility it had been

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determined that test facility

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characteristics could contribute to

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undamped engine instability in order to

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determine the influence of the s 1b

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stage structure on h1 engine combustion

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stability the Chrysler Corporation was

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directed in late December to perform

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engine stability tests on s1 b11 using R

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and D engines and BOM induced

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instability to determine stage damping

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characteristics the first test went for

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the full 15 second direction January

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25th using one R and D engine for the

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test the peak pulse lasted less than 4

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milliseconds which was considered

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satisfactory to R&D engines were bombed

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in the next test on February 6 damping

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testing on February 14th gave

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essentially the same data the fourth

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was terminated after three seconds due

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to a failure and fire in the gearcase of

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engine number eight which was not under

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bomb testing this failure was thoroughly

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investigated by MSFC and the contractors

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concerned cause of the failure was

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attributed to gross leakage of locks

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past the lock seal in the h1 engine

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locks pump the leakage was attributed to

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either a broken carbon seal or a failure

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of the caliphs lip seal during engine

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start as a result of the failure MSFC is

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planning to test both lip seal and

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bellows type seals in static tests

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during April based on test data from

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these future tests determination will be

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made as to which type seals will be used

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on 205 further as a result of this

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failure the decision was made to install

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temperature measurement instrumentation

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in the locked seal cavity drain lines

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this measurement will be interlocked to

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launch control to guard against this

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failure mode components of the

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configuration measurement system will be

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tested on s1 b11 and the full system

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will be tested on s1 b12 and will be

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installed on a s 205 the status of other

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s 1b stages is as follows

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s1 b5 the first scheduled man Saturn

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flight booster was shipped from issue on

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March 25th and arrived at the KSC Saturn

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dock March 28th as of the end of the

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quarter s 1b stages 6 8 9 10 and 12 were

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in storage at the Michoud assembly

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facility modifications started in

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January on s1 b7 in preparation for the

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206 207 dual launch rendezvous mission

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if such a mission is required for the

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Apollo program several components have

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been removed during the quarter for

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updating electrical power was applied to

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the stage March 15 the status of the

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second or s4b stages of the Saturn 1b as

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of the end of the quarter is as follows

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s4 B 205

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completed post storage tests and check

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out during the quarter shipment to KSC

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s4b stages 206 207 208 and 209 are in

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storage at Sacto stages 210 and two

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eleven are in storage at Huntington

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Beach s4b 212 presently designated as

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the stage for use in the orbital

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workshop mission was undergoing Apollo

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modification work during the quarter the

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s4b orbital workshop mock-up was shipped

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to MSFC by a super guppy from McDonnell

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Douglas on January 16 1968 extensive

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crew station and documentation reviews

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were conducted on the workshop mock-up

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during this period taking part in these

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reviews were several astronauts the

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astronauts were well satisfied with the

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mock-up and their participation in the

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reviews allows incorporation of

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operational aspects into the design in a

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timely and efficient manner evaluation

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of data resulting from the review is

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continuing at the end of the quarter

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approximately 285 engineering drawings

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of a total of 1100 have been released

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for the orbital workshop modification

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kit workshop modifications are scheduled

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to start early in the next quarter

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Saturn 1b instrument unit status and

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progress is as follows SIU 205 has

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completed modifications and is scheduled

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for shipment to KSC early in the next

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quarter Saturn 1b instrument units

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numbers 206 207 208 209 and 211 are in

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storage at IBM's Huntsville facility I

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you 210 after a month and a half in

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temporary storage reentered assembly in

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early february at the close of the

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report period satisfactory progress was

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being made in assembly operations due to

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the long lead time for IU 212 no

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activity was scheduled for

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this period progress on storage

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enclosures for all stages has been very

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satisfactory during this report period

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initial tests performed at MSFC on the

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s-1 b enclosure indicated this type of

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protection would be satisfactory

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following testing production of the s-1

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b enclosures was initiated by the

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Technical Services office at MSFC the

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first production storage enclosure was

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completed late in the report period a

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total of seven s1 t enclosures will be

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produced and shipped to masu during this

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period a change order was issued to

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McDonnell Douglas to cover design

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fabrication and installation of

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protective enclosures for 8s 4b second

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stages may 31st completion was specified

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meanwhile IBM is already designed tested

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and initiated procurement of protective

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storage enclosures for 1b instrument

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units the IBM enclosure is a reusable

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container made of a water vapor barrier

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plasticized non flammable material a

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mechanical compression type closure is

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used to affect final sealing to control

190
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humidity conditions the enclosure is

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purged and desiccants absorb the

192
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moisture the desiccants are replaced

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every 30 days or as required

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since the IU's are stored in an

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air-conditioned area no temperature

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control is required this container is

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designed to effectively protect a unit

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for up to three years present plans are

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the Thistle Saturn wonderly found early