Search found 85 matches

by Stealth_Chopper
Apr 10 2021 8:50am
Forum: EBike General Discussion
Topic: Belt + 3-speed IGH + Seattle Hills = TSDZ2, BBS02, BBSHD, or mistake?
Replies: 3
Views: 209

Re: Belt + 3-speed IGH + Seattle Hills = TSDZ2, BBS02, BBSHD, or mistake?

Argo, Sincerely, why reinvent the wheel? OK if that's what you want to do of course it's fine. Consider, You need max torque, and can always take it easy. Maybe when you are happily tired some day: You might just want to motor up a mountain on the way home 'just because'. It's later than you think, ...
by Stealth_Chopper
Mar 15 2021 8:23pm
Forum: General Discussion
Topic: Will technology make us smarter?
Replies: 18
Views: 470

Re: Will technology make us smarter?

Not for most people.
Example: Kids don't know how to read and they don't have to learn, because:
Videos are available on any topic made by everyone and not just daunting TV people
The fount of knowledge is
'The YouTube'
by Stealth_Chopper
Mar 15 2021 8:17am
Forum: Bike Mechanical & Structural
Topic: Square vs Round tubing : square easier?
Replies: 4
Views: 265

Re: Square vs Round tubing : square easier?

My '96 vintage US Ross has fine welded aluminum rectangular stock stays.
#U96032869; FarmingDale NY
"7000 series Aluminum "
Frame: 45mm Down Tube, 31.8mm Top Tube 16mm X 21mm chain and seat stays
by Stealth_Chopper
Feb 22 2021 2:34pm
Forum: Electric Aircraft
Topic: Battery pack selection for self-launching glider
Replies: 31
Views: 807

Re: Battery pack selection for self-launching glider

. . . "Am I missing something important here?"
Yes, fun. :D
Why not 'just' fly a sailplane twice today and you'll be completely "immersed" piloting the aircraft.
Good Luck
Mike
by Stealth_Chopper
Feb 21 2021 7:20am
Forum: Electric Watercraft
Topic: Shamrock, 25 foot sailboat electric conversion with an ebike hub motor
Replies: 54
Views: 6470

Re: Shamrock, 25 foot sailboat electric conversion with an ebike hub motor

I see from the pictures of the solar cruising yacht my rough guess of a 4' prop was about right. The surface piercing props are the 'racer's edge' winning at super speed or slow motion. :wink: Anything But Sails I learned, ( spending time & $,$$$ ), that wind does not blow hard to push any vesse...
by Stealth_Chopper
Feb 21 2021 7:02am
Forum: EBike Technical
Topic: Specialized Turbo won't stay on
Replies: 8
Views: 309

Re: Specialized Turbo won't stay on

Good luck Troubleshooter !

I will guess that nice looking prominent lighted (?) " button " On/Off Switch maybe failed.

Because it's in a vulnerable location for any moisture, even a wet finger, and switches can be failure prone , or 'short lived'.
Mike
by Stealth_Chopper
Feb 15 2021 5:10pm
Forum: Alternative Energy
Topic: Gas turbine & antifreeze windmill startup, fire in the hole
Replies: 1
Views: 182

Gas turbine & antifreeze windmill startup, fire in the hole

"Name that Photo:"
Hey boy, You UGLY !
Texan needs a propane flame thrower ?
Nah,
Wind turbine technician ( J.Kerry Heinz) who's a super maintenance pilot :D
Get 'er Done :flame:
This is RICH !
Deicng_POS_genset.jpeg
Deicng_POS_genset.jpeg (20.66 KiB) Viewed 176 times
by Stealth_Chopper
Feb 11 2021 11:45am
Forum: EBike Build Threads
Topic: 16 inch kids 750 watt mid drive bafang
Replies: 7
Views: 437

Re: 16 inch kids 750 watt mid drive bafang

Great work Dad,and readily adaptable application mid drive to swap and enjoy as time goes on.
by Stealth_Chopper
Feb 10 2021 5:34pm
Forum: EBike Build Threads
Topic: Your Creation's Before & After Pics
Replies: 1924
Views: 707902

Re: Your Creation's Before & After Pics

Bravo,
I can tell you like it!
Me too!
by Stealth_Chopper
Feb 10 2021 7:49am
Forum: EV Business World
Topic: +$1B invested: Archer Aviation. So what?
Replies: 0
Views: 169

+$1B invested: Archer Aviation. So what?

Maybe ~ 1/20th of the required cost to design, develop, validate, and certify a new aircraft.

"Archer To Go Public In Reverse Merger As United Airlines Places Order For Its Electric Air Taxis To Shuttle Passengers To Airport"
by Stealth_Chopper
Feb 09 2021 5:23pm
Forum: Electric Watercraft
Topic: jet boat conversion
Replies: 3
Views: 205

Re: jet boat conversion

Why? Jet pump propulsion is terribly inefficient compared to the ancient propeller. Your big pump can work on the most powerful engines, and is used for optimal swimmer / skier safety ( enclosed ) You can setup a boat with electric power and relax, or if you want speed good luck. MinKotaOutboard.jpg
by Stealth_Chopper
Feb 05 2021 7:56am
Forum: Electric Watercraft
Topic: Getting Into Electric Power Catamarans
Replies: 60
Views: 1580

Re: Getting Into Electric Power Catamarans

My friendly suggestion
Buy an electric outboard, mount it on a comfortable boat ( with thwarts ).
Enjoy yourself, recharge, repeat.
MinKotaOutboard.jpg
MinKotaOutboard.jpg (31.33 KiB) Viewed 777 times
by Stealth_Chopper
Jan 27 2021 7:19am
Forum: Health and Food
Topic: Cured my wife's anxiety and my depression with nutritional supplements.
Replies: 67
Views: 4134

Food

none of my business
by Stealth_Chopper
Jan 21 2021 12:14am
Forum: EBike Technical
Topic: Controller shunt mod questions etc.
Replies: 8
Views: 386

Re: Controller shunt mod questions etc.

What a great question with answers, including '" build 'em & break ' em '" , in this short discussion!
by Stealth_Chopper
Jan 16 2021 9:03am
Forum: EBike General Discussion
Topic: Aerodynamics
Replies: 307
Views: 42847

Re: Aerodynamics

I didn't know of any good use for that 'sign' material. I have thought about finding some use. In 2016 I could have filled truckloads of common "Vote for Me" { ~ 2' square pieces and steel wire frames. } Could used signs be laminated, Again , they are made by lamination Creating big sheets...
by Stealth_Chopper
Jan 08 2021 8:33pm
Forum: EBike Technical
Topic: 2019 Motor Simulator, Mid-drives and other updates
Replies: 52
Views: 11225

Re: 2019 Motor Simulator, Mid-drives and other updates

Thank You for this fine reference information, Justin and all. I chose the BBS02 because of this analysis and my working background in thermodynamics. No regrets. "But what's interesting is you could have all of this exact same improvement by simply starting with the BBS02 motor and then clampi...
by Stealth_Chopper
Jan 05 2021 9:58pm
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1670
Views: 268658

Re: Thread for new battery breakthrough PR releases

โ€œReport on Emerging Energy Storage Technologies,โ€ presents the results of research conducted by NSWCCD for CPSC, under CPSC Contract No. CPSC-I-17-0002. CPSC funded this research to learn about emerging high-energy-density battery technologies and to identify strategies to mitigate the fire hazards ...
by Stealth_Chopper
Jan 05 2021 8:33pm
Forum: Vendor Relations Corner
Topic: Ansbern ebikes
Replies: 11
Views: 537

Re: Ansbern ebikes

๐ŸŽถNow I've got heartaches by the number
Troubles by the score๐Ÿ’Š๐ŸŽถ
by Stealth_Chopper
Jan 05 2021 9:47am
Forum: Electric Aircraft
Topic: Help needed for manned VTOL
Replies: 25
Views: 818

Re: Neutronics 80 series motors for manned VTOL?

Safety factor ~=0? :lowbatt:
With a massive 10 motor bi-plane you might live through this pipe dream flight.
by Stealth_Chopper
Jan 02 2021 9:00am
Forum: General Discussion
Topic: How Federal Agents can legally take your money
Replies: 7
Views: 587

Re: How Federal Agents can legally take your money

Remember:
After you choose to fly and arrive at the airport you are subject to search and will be asked security questions.
Answer completely, carefully and correctly, because there are a wide variety of consequences.
Because many regulations are covered by your actions.
Mike
by Stealth_Chopper
Dec 31 2020 8:46am
Forum: Electric Watercraft
Topic: Shamrock, 25 foot sailboat electric conversion with an ebike hub motor
Replies: 54
Views: 6470

Re: Shamrock, 25 foot sailboat electric conversion with an ebike hub motor

Very interesting reading, and full of detail about motor powered vehicles, Thanks ! I'm a boater and am wondering about optimizing the propeller design for an electric vessel. What if: 25' boat; ~4' ? Large prop has variable pitch bouyant hollow titanium blades turning relatively slow. :idea: Mike
by Stealth_Chopper
Dec 22 2020 10:31pm
Forum: EScooters/EMotorcycles
Topic: Car Alternator to 3Phase Motor conversion.
Replies: 8
Views: 483

Re: Car Alternator to 3Phase Motor conversion.

Most alternators have Bushings I believe. ?

And carbon brushes, noun'? , maybe removed from this interesting motor?
TorgueRPM wrote: โ†‘
Dec 22 2020 9:51pm
Does the alternator use bearings or bushings?