Marine Anemometer Project

[Inq]

I see most production Anemometers and Yachta use a forward leaning post... usually around 14".  A couple just use a vertical post.  I'm leaning toward a vertical post for some structural, weight and aerodynamic reasons.   Is there some advantage to these forward leaning versions?

Thanks.

[Techstyle]

I see most production Anemometers and Yachta use a forward leaning post... usually around 14".  A couple just use a vertical post.  I'm leaning toward a vertical post for some structural, weight and aerodynamic reasons.   Is there some advantage to these forward leaning versions?

Thanks.

These are my opinions:
- it is usually on the top of the mast where realestate is limited and there is a whip antenna and regular Windex, pushing it forward and outwards helps with its foot print.
- additionally, it makes calibration easier as you can line up the shaft with the front of the boat easier if you have a lever arm or bigger target to use a "viewfinder"

[Inq]

I see most production Anemometers and Yachta use a forward leaning post... usually around 14".  A couple just use a vertical post.  I'm leaning toward a vertical post for some structural, weight and aerodynamic reasons.   Is there some advantage to these forward leaning versions?

Thanks.

These are my opinions:
- it is usually on the top of the mast where realestate is limited and there is a whip antenna and regular Windex, pushing it forward and outwards helps with its foot print.
- additionally, it makes calibration easier as you can line up the shaft with the front of the boat easier if you have a lever arm or bigger target to use a "viewfinder"

Thanks... That makes perfect sense.  I have nothing up there... but just remembered... 
I have a rotating mast. CRAP! - That sure throws a monkey wrench into the works.

[Newbie1979]

And what about yachta wind sensor? https://open-boat-projects.org/en/windsensor-yachta/ the only change I made was replacing the bearings with ceramic ones.
https://photos.app.goo.gl/JpHgi5PBL4VCE6NP9
https://photos.app.goo.gl/nabaghSC2iDRTCCSA

+1 for Yachta. I have used it for two seasons now and it works great. Simple integration into signalK on the RPI and displayed via KIP dashboard.

[Inq]

Two more installments, but nothing Earth Shattering - (1) Change sensor chip (2) First cut of the speed sensor portion.

Contents/Intro Page - https://inqonthat.com/aiming-for-a-20-ma...nemometer/

[Inq]

It's been a while.  The weather hasn't been very helpful and had several bugs to kill in the software, but here are some test results from the Test article. - https://inqonthat.com/inqwind-plastic-be...periments/

[Inq]

Current Design Thought

1. Electronics totally sealed in plastic. Weatherproof but unserviceable
   
2. Bearing can't be 100% protected, but convoluted, up-hill path for water ingress with drainage.
   
3. Striving for accurate readings as low as 1 knot
   
4. Less than 0.1 knot resolution
   
5. Less than 0.1° direction resolution
   
6. Configurable rate up to 100 Hz on both angle and speed
   
7. Less than 25 millisecond latency
   
8. < $20US per unit