Howard Tindall bol inzinier NASA, ktory bol de facto zodpovedny za vsetky dolezite procedury v Apollo a Gemini misiach, vratane pristavacich a vzletovych manevrov, kritickych scenarii, konfiguracie elektroniky a podobne.
Bol znamy tym, ze vypisoval stovky poznamok svojim kolegom, casto relativne neformalne. Preberal technicke detaily, mozne rizika, celkovy progres na projekte...
Mne sa podarilo nahodnym klikanim objavit archiv jeho korespondencie (originalny post tu:
http://www.collectspace.com/ubb/Forum29 ... 00815.html):
Citácia:
Originally posted by Robert Pearlman:
As it turns out, the NASA-UHCL archives had not one, but three separate collections of Tindallgrams scanned and available. I haven't had a chance to check how they overlap (or if they overlap), but I would appreciate any help doing so. Ultimately, I'd like to add these to a new section of cS Resources so that they are easily accessible, but perhaps they can first be merged in a such way to present one set of documents.
In the meantime, here are the Tindallgrams: - tindallgrams01.pdf (23 mb, 525 pages) - this collection was scanned by Glen Swanson when he was historian for Johnson Space Center.
- tindallgrams02.pdf (23 mb, 380 pages) - the best organized of the three, this collection was originally labeled "Lunney" and includes both an index and an introduction by Malcolm Johnston of the Charles Stark Draper Laboratory. This may be the set described above by Andrew, as this includes 186 Tindallgrams.
If you have never read Tindallgrams before, this may be the collection you want to start with.
- The third set was labeled "KSC" and the scan quality is not great, but it is broken into four PDFs by year: <UL>
- 1967_tindallgrams.pdf (34 mb, 233 pages)
- 1968_tindallgrams.pdf (29 mb, 464 pages)
- 1969_tindallgrams.pdf (8 mb, 153 pages)
- 1970_tindallgrams.pdf (3 mb, 39 pages)
Je to velmi zaujimave, aj ked casto velmi technicke citanie, ktore vam celkom v mnohom objasni, ako casto na prvy pohlad jednoduche a bezne veci sposobovali problemy a museli byt opatrne naplanovane, aby nedoslo ku tragedii.
Plus, casto clovek najde male perly.
Citácia:
Pete wants to do PDI face up. (Hallelujah baby!)
(PDI je Powered Descent Initiate, co je vlastne zostup na povrch mesiaca)
Citácia:
"The time has come" the walrus said, "to talk of many things." This classic quotation apparently now applies to the Apollo 13 lunar orbit mission techniques and this walrus is suggesting Tuesday, September 23.
Citácia:
Recognizing that the astronaut has a complicated job to perform during the terminal part of descent, Ed Copps is proposing a rather simple new program to be added to the LM computer to relieve the situation. Rather than the astronaut trying to keep track of his status based on altitude, altitude rate, time since the low level sensor light came on, and the throttle profile he has executed since that time, this new program would predict for him the time at which he would no longer be able to abort. This would be in the form of a five second warning, during which he must either commit to landing or must get out of there.
Citácia:
...it looks like given some ingenuity ways can be found to assure crew safety. However, they may require a willingness to have "blind" faith for a considerable time in a system that might be malfunctioning and may require an action that could prevent mission success...
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