131 HMMWV Technical Manuals collection
U.S. Army et al. (compiled on Internet Archive; TM 9-2320-280-10 also at liberatedmanuals.com)
Complete operator + maintenance documentation for a real vehicle platform — demonstrates the depth possible with PD military manuals; popular with surplus-vehicle owners and preppers.
Editor's notes
Applies to military HMMWVs, not civilian cars — niche. CHECK EACH TM's distribution statement individually before bundling: some Army TMs carry Distribution B/C/D restrictions (export-controlled or limited distribution) even when they leak onto the web; bundle only Distribution A ('approved for public release') items.
PDF (large collection)
Multiple GB for full collection; individual TMs 5-50 MB
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Source & license
US federal government works (public domain); the -10 operator's manual is marked approved for public release, distribution unlimited.
Use of this material does not imply endorsement by its publisher or any government agency.