May be relevant... shed light on...this topic...
AFFDL-TR-69-42 Stress Analysis Manual
NOTE. 'Texts' teach... 'Manuals' are for quick/consistent working reference/calculations.
Ok... I had to look this bolt series up...
NAS1202-to-1210 is at Rev11, procurement spec is NAS498 [Rev14]... except for tabulated ultimate tension values, down the far-right column of the table shown.
This bolt has a flush-tension-head [FTH] mated with short threads... so working tension...
Well... RE SpaceX 'Star Base, south tip of Texas'... there goes the neighborhood...
SpaceX Seeks Approval to Turn Texas Starbase Site Into New City
https://www.msn.com/en-us/news/technology/spacex-seeks-approval-to-turn-texas-starbase-site-into-new-city/ar-AA1vLRYC
Bloomberg) -- Elon Musk is...
R...
The term 'match drill' should be used only when all-parts are pre-drilled to exacting tolerances with undersized holes that allow a degree of jig/fixture-less assembly with clecos, or other tight-fitting temporary fasteners etc. The assembly is THEN re/final-drilled to nominal-sized holes...
CPC... civil aircraft get shot at all the time.
During a discussion of MIL Acft battle damage/repairs with a Boeing-commercial guy from Wichita... he casually confided in me that 737 fuselages transported by railroad enmasse [+/-10-Acft per rail shipment] to SEA WA regularly arrive with one or...
I have several books...
There are a few newer books dedicated for training structural mechanic/assemblers.
BUT A&P courses at a reputable college are [Spartan, Embry-Riddle, etc] are still the best options for new mechanics... for common basic-skills/knowledge and discipline...
/NOTE1/ in...
Perhaps the turboprop is [also] the source for electrical power for test flights?
For test-bed Acft this is a 'typical arrangement'.
For Giggles.... Here was an arrangement vetted in the 1970s. There was a turbo-prop hung on the nose... and a small 'fanjet-engine' for take-off/heavy in the...
Suggest You review AD's and SB's for Your engine and narrow-down either the recommended borescopes... available or obsolete... and/or define the borescope functional requirements... and have conversations with borescope OEMs regarding your application/requirements.
IF your requirement and the...
RE ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay)... [Units in microinches/Roughness Average]...
Generally speaking... as-is plating's... will roughly double the surface roughness of the base metal it is applied 'over'. IE...16-microinch RA [16-RA] machined/blasted...
I got myself thinkun'...
One element/rule of certain SStl alloys in aerospace is 'do not disturb the natural passive finish... let it do it's job'.
What 'IF' these owners decided to clean/polish/brighten the natural SStl 'passivation patina'... using chemicals/abrasives that would strip-off...
OK RE Starship launches from S Texas... I see a few problems for the long term.
At a high pace of launches... the local land/home owners will eventually be forced [by eminent domain] to leave for safety... and the need for SpaceX 'growth', IE: more launch sites, employee housing, mundane...
Geezzz...
The HSTB409 is a 'shortened Hi-Tigue' ['Hi-Lite/Hi-Tigue'].
The Hi-Tigue equivalent to HSTB11 = HLT11.
The 1OS [+1/64] for HLT11 is HLT111... and the 2OS [+1/32] would be HLT211.
BTW... the bead is the 'shaded ring area at the end of the shank at the threads'... that is a barely...
Simple question... 'What'...
... Are You inspecting... and 'where'? The Factory? A Laboratory? On-Aircraft structure or systems? Engine? Electronics, electrics and wiring? Landing gear? Accessories?
... Are You 'looking for'? AND what accuracy and level of confidence do you need?
... OTHER...
I RF'ed post #8.
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Green 123... RE 737 SB... read the fine Print...
Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15CFR 300-774). An export license may be required before it is used for development...
Ask this question in following forums...
https://www.theairlinepilots.com/forum/
https://www.airlinepilotforums.com/engineers-technicians/
https://forums.propilotworld.com/forumdisplay.php
FYI 300 series magnetic properties.
I checked the AeroSpace Metals Handbook*, before throwing my statement 'very low magnetic [permeability] for 300-series SStl' up-against the wall...
ASMH volume number, alloys...
#1301 301, 302 SStl
#1302 303, 303se SStl
#1303 304, 304L SStl
#1307 316, 316L...
...you also adding-in 'free-running' torque [to a slightly higher torque value due to 'thread-drag']. Are you torque-turning the bolt 'dry' or 'wet'**? Are you using a calibrated/precise-range torque wrench... clicking or indicating... for this size bolt and the required torque?
**Are you...
