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Doug-approved lesson

Share What You Learn

Especially your mistakes. That's where the real value is. Knowledge only becomes wisdom when it's shared.

Projects that demonstrate this lesson

Related entities

Evidence

Evidence is inherited from the reviewed projects and entities connected to this lesson.

Primary evidence

Videos

Videos, transcripts, website material, and Doug-authored project posts.

NURD - Nanoplastics Underwater Recovery Device

Videos · weight 6.00

260122 NURD - Nanoplastics Underwater Recovery Device

DIY Boat Propeller - Part 3

Videos · 2011-12-20 · weight 6.00

DIY Boat Propeller - Part 4 - The Failure

Videos · 2011-12-20 · weight 6.00

DIY Boat Propeller - Part 5 - The Success

Videos · 2011-12-20 · weight 6.00

DIY Boat Propeller - Part 6 - Casting Lessons Learned

Videos · 2011-12-20 · weight 6.00

DIY Boat Propeller - Part 7 - Welding Repair

Videos · 2011-12-20 · weight 6.00

147 additional references are available through the related entity pages.

Primary evidence

Transcripts

Videos, transcripts, website material, and Doug-authored project posts.

Boat City Prop Shop

Transcripts · 2011-11-07 · weight 2.25

us a tour of the propellers used to have

Boat City Prop Shop

Transcripts · 2011-11-07 · weight 2.25

blackwill takes the propellers around in

Boat City Prop Shop

Transcripts · 2011-11-07 · weight 2.25

five mercury propellers that's an old

DIY Boat Propeller - Part 3

Transcripts · 2011-12-20 · weight 2.25

propellers but you know I tried putting

DIY Boat Propeller - Part 5 - The Success

Transcripts · 2011-12-20 · weight 2.25

or all the good advice on the casting

DIY Boat Propeller - Part 5 - The Success

Transcripts · 2011-12-20 · weight 2.25

Super Dave Our Adviser on Casting we are

436 additional references are available through the related entity pages.

Community discussion

Facebook discussion

Questions and discussion from the Seeker community. Useful context, but not automatically verified engineering evidence.

Facebook reply

Facebook discussion · Doug Jackson · 2025-05-15T19:50:36.000Z · weight 1.00

David Jackson It delivers oil to vearable pitch control propeller system. That thing is designed to leak oil. So what doesn’t flow through that goes through the pressure relief valve.

Facebook comment

Facebook discussion · Kerry Fenn · 2025-05-20T12:02:46.000Z · weight 1.00

As a researcher for nano plastics in the ocean, should you be cutting plastic pipe over the water? I'm sure none is going in the ocean but shouldn't you hold yourself to a higher standard?

Facebook reply

Facebook discussion · Doug Jackson · 2025-06-06T10:59:05.000Z · weight 1.00

A nanoplastics sampler.

Facebook reply

Facebook discussion · Doug Jackson · 2025-12-22T11:23:14.000Z · weight 1.00

...ove some. But the textbook seems to want all three pieces: transmission, gearbox, and propeller shaft to all have their axis parallel.  I think it’s pretty close, but certainly not perfect.

30 additional references are available through the related entity pages.

Commentary

Sailing Anarchy

Public commentary and opinion. It may include speculation, errors, or incomplete information and should not be treated as verified technical evidence.

Sailing Anarchy post #11752 page 588

Sailing Anarchy · Blitz · weight 0.80

He said he got a research gig in the latest video. Micro plastics sampling in the keys. Wonder how he is going to tow trawls?

Sailing Anarchy post #11753 page 588

Sailing Anarchy · Blitz · weight 0.80

...y to tow even in small boat. He said he got a research gig in the latest video. Micro plastics sampling in the keys. Wonder how he is going to tow trawls?

Sailing Anarchy post #12331 page 617

Sailing Anarchy · weight 0.80

Today's Garmin track and his intentions to host researchers and trawl for plastics appears to indicate he has finally accommodated some research, one of his stated goals. That apparently justifies the charity. It appears they went back to Key West so maybe the...

Sailing Anarchy post #12335 page 617

Sailing Anarchy · weight 0.80

...esearchers. Today's Garmin track and his intentions to host researchers and trawl for plastics appears to indicate he has finally accommodated some research, one of his stated goals. That apparently justifies the charity. It appears they went back to Key West...

80 additional references are available through the related entity pages.