Search found 71 matches

by Stealth_Chopper
Jan 16 2021 9:03am
Forum: E-Bike General Discussion
Topic: Aerodynamics
Replies: 307
Views: 42253

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: E-Bike Technical
Topic: 2019 Motor Simulator, Mid-drives and other updates
Replies: 52
Views: 10294

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: 1668
Views: 253147

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: 332

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: 496

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 04 2021 7:33pm
Forum: E-vents
Topic: eBike OffRoad race format
Replies: 16
Views: 683

Re: eBike OffRoad race format

I'm no salesperson so, Imagine a well prepared peddler with mid drive kits, batteries, adapters, wires & 'wrenches' at the trail head: "Your bike could be electric,". Power to go right up that hill. The ride+race format is something I'd considered when first coming online as a Stealth ...
by Stealth_Chopper
Jan 02 2021 9:00am
Forum: General Discussion
Topic: How Federal Agents can legally take your money
Replies: 7
Views: 356

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: 40
Views: 2999

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: E-Scooter and Motorcycle General Discussion
Topic: Car Alternator to 3Phase Motor conversion.
Replies: 8
Views: 315

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?
by Stealth_Chopper
Dec 14 2020 10:15am
Forum: E-vents
Topic: eBike OffRoad race format
Replies: 16
Views: 683

Re: eBike OffRoad race format

Oh ! Before covid 19; I had imagined: An entrepreneur rolls in with a spectacular color wrapped tractor trailer full of 20 eBikes { ~ $2K ea. retail ) Location is like a fairground with parking, some pavement and grassy hills and dips, with a simply marked race course. 1st Prize = the bike ridden to...
by Stealth_Chopper
Dec 14 2020 9:08am
Forum: E-Bike Build Threads / Photos & Video
Topic: Another full suspension build
Replies: 272
Views: 4188

That's Pat McGroin

(Don't read, :confused: he's keystroking) ( & I'm typing to spend time, please don't quote me { off the record } :banana: What the....?!?!?!??! I just wanted to see a bike, man. ........ not the ramblings of a ... madman, or someone on drugs... WTF is this thread full of? Lol. Not bikes, thats f...
by Stealth_Chopper
Dec 13 2020 7:48am
Forum: General Discussion
Topic: BMW Electrified Wing Suit....
Replies: 5
Views: 419

Buzz Lightyear

I see this ' Lightyear Patrol ' Falling with style ' because electric flight is for toys.
by Stealth_Chopper
Dec 04 2020 9:19am
Forum: E-Bike Build Threads / Photos & Video
Topic: TSDZ2 Full Suspension MTB build (motor cooling, chainline, etc)
Replies: 8
Views: 666

Re: TSDZ2 Full Suspension MTB build (motor cooling, chainline, etc)

Oh, that's a nice eBike !
Please critique the ride quality, and performance of your choice for the type of suspension.
( I think it's great !)
Your attention to thermal management with bespoke heat sink is a nice feature.
Mike
by Stealth_Chopper
Nov 30 2020 5:25am
Forum: E-Bike Build Threads / Photos & Video
Topic: Another full suspension build
Replies: 272
Views: 4188

Plastic Toys?

Whatzis?
:lol:
by Stealth_Chopper
Nov 15 2020 7:52am
Forum: E-Bike General Discussion
Topic: Your thoughts on frames and riding positions?
Replies: 40
Views: 1430

Re: Your thoughts on frames and riding positions?

I think:
There's no substitute for starting with full suspension, which transmits less impact to your hands, wrists, butt, AND feet!
by Stealth_Chopper
Nov 01 2020 9:44am
Forum: E-Bike General Discussion
Topic: The downside of more electric bikes
Replies: 32
Views: 1052

Re: The downside of more electric bikes

Oh that!
Before i bought my first ebike from a website last year I confirmed:
No LBS would touch the bike, I was on my own for all bicycle and electrical repairs.
Second bike is a BBS02 kit because I know better and learned from reading :es:
Mike
by Stealth_Chopper
Oct 31 2020 6:12pm
Forum: Electric Aircraft
Topic: Self-launching sailplane conversion
Replies: 23
Views: 792

Re: Self-launching sailplane conversion

Nonsense " The main problem is that no matter the thrust number I come up with through testing, I don't have any real data to show what kind of performance this would produce because nothing's been published in the manuals. " You missed a baseline, bought a motorized sailplane, didn't run ...
by Stealth_Chopper
Oct 26 2020 12:53pm
Forum: Electric Aircraft
Topic: Self-launching sailplane conversion
Replies: 23
Views: 792

Re: Self-launching sailplane conversion

You have no data only stories,
Guessing the pounds of force (or Neutons) of thrust required to fly your machine where you live.
by Stealth_Chopper
Oct 26 2020 7:55am
Forum: Electric Aircraft
Topic: Self-launching sailplane conversion
Replies: 23
Views: 792

Re: Self-launching sailplane conversion

Mount your engine.
Run the engine and measure thrust ( Fn ).
Because you don't know anything, best by test , thrust you can trust.
Sincerely
Mike
by Stealth_Chopper
Oct 23 2020 8:54pm
Forum: E-Bike General Discussion
Topic: Hunting mid-drive build - frame choices
Replies: 18
Views: 827

Re: Hunting mid-drive build - frame choices

Subject: Hunting
Why ride & carry , strapped , $6K EV, packs, knives, food and lights to the wide open land of truck driving drunkards armed with $100 shotguns?
Have you seen the movie "Deliverance"? Ever tangled with a hillbilly?
You crazy man
Mike V.
by Stealth_Chopper
Oct 19 2020 10:43am
Forum: Battery Technology
Topic: Absolute best 18650 (cycle life, DCIR)
Replies: 21
Views: 732

Re: Absolute best 18650 (cycle life, DCIR)

My conclusion after studying this data and Tesla production technology: https://endless-sphere.com/forums/viewtopic.php?f=14&t=103092&start=75 Battery pack design and manufacturing process quality must be considered having greater effect than overall cell performance. Home made ( "somet...
by Stealth_Chopper
Oct 11 2020 6:32am
Forum: E-Bike General Discussion
Topic: Help me Electrify it!!
Replies: 19
Views: 730

Re: Help me Electrify it!!

Chris,
You are a great father.
Mike
by Stealth_Chopper
Oct 06 2020 8:28pm
Forum: Vendor Relations Corner
Topic: EM3ev vs Luna Batteries and Kits
Replies: 51
Views: 5990

Re: EM3ev vs Luna Batteries and Kits

Quality I see everyday, this Liquid Wolf.
Rugged by design, constructed like 'mil-spec' aircraft componentry.
Liquid_Wolf.JPG
Liquid_Wolf.JPG (225.8 KiB) Viewed 211 times