/n/ - Transportation

28KiB, 695x391, http___cdn.cnn.com_cnnnext_dam_assets_190620120644-qsta-1.jpg

Anonymous Thu 28 May 2020 00:42:50 No.1493656 View Reply Original Report

what is the future of air travel going to look like?
Why do we still ride in designs which are essentially 70 years old?

20 posts and 1 image omitted

Anonymous

View Same Google ImgOps iqdb SauceNAO Airflow_in_auto-2.jpg, 102KiB, 367x467

Anonymous Thu 28 May 2020 23:52:12 No.1494221 Report

Quoted By:

>>1494186
>Cool but without a cruise mode, proper batteries and a good fail-safe
Valid points, however do helicopters are considered fail-safe? I know they can do autorotation if the engine fails, but on the other side they still are very fragile if the control system fails.
On the other side, if the drones use asynchronous motors (which I don't know if they do), they may have a single moving part, which is the rotor itself.

Anonymous

View Same Google ImgOps iqdb SauceNAO Airflow_in_auto-2.jpg, 102KiB, 367x467

Anonymous Thu 28 May 2020 23:55:00 No.1494223 Report

Quoted By:

>>1494186
>Cool but without a cruise mode, proper batteries and a good fail-safe
Valid points, however do helicopters are considered fail-safe? I know they can do autorotation if the engine fails, but on the other side they still are very fragile if the control system fails.
On the other side, if the drones use asynchronous motors (which I don't know if they do), they may have a single moving part, which is the rotor itself.
>>1494193
>>1494198
The difference between a drone and a helicopter is the control method, nothing impedes a drone from being turbine powered.

Anonymous

Anonymous Fri 29 May 2020 10:38:50 No.1494414 Report

Quoted By:

>>1493656
supersonic travel is cucked because max lift to drag ratio decreases as mach number increases, so at mach 2 you could get 10 to 1, but at mach 3 it goes down to 8 and at mach 4 further down to 7.

Going below mach 2 is not that efficient either, because then transonic drag also makes it less efficient.

Concorde for example had a L/D of around 7 or 8 at mach two, and at that speed some of the most efficient jet engines built, but it's l/d below mach 1 was 12:1 so despite being designed for supersonic flight it still had better range and better fuel consumption subsonically...

Anonymous

Anonymous Fri 29 May 2020 12:59:55 No.1494466 Report

Quoted By:

>>1493656
>Max efficiency
>Highly modular airframes capable of being easily upgraded
>Low maintenance yet incredibly safe
Thats what airlines want. So make a plane of that.

Anonymous

Anonymous Fri 29 May 2020 16:31:32 No.1494520 Report

Quoted By:

>>1494111
>I don't care
Well, I guess air travel is saved and supersonic flight will be a reality now. Than you based anon!

383KiB, 1200x1510, Mai+rebelo_60bec3_6859502.jpg

View Same Google ImgOps iqdb SauceNAO

Anonymous Thu 14 May 2020 16:02:37 No.1486409 View Reply Original Report

Quoted By: >>1494503

Do you guys cycle alot?

30 posts and 3 images omitted

Anonymous

Anonymous Wed 27 May 2020 11:30:19 No.1493287 Report

Quoted By:

>>1492929
My genes are simply shit, no surprises.
I was so bad in physical education classes back at school .

Anonymous

Anonymous Wed 27 May 2020 13:14:24 No.1493322 Report

Quoted By: >>1493340

>>1492413
My recovery rate is shit too. My ankles always seem sore from walking/biking so much, I started using an ice pack and it got better.
My thighs get sore but that's fine.

Anonymous

Anonymous Wed 27 May 2020 14:18:24 No.1493340 Report

Quoted By:

>>1493322
Which part of your ankles hurt after riding? It might be a fit issue

Anonymous

Anonymous Wed 27 May 2020 14:55:30 No.1493349 Report

Quoted By:

Not keeping track but been doing about 70 miles a week recently.

Anonymous

Anonymous Fri 29 May 2020 15:24:24 No.1494503 Report

Quoted By:

>>1486409
No

540KiB, 1280x960, 1280px-Path_of_least_resistance.jpg

View Same Google ImgOps iqdb SauceNAO

Anonymous Mon 25 May 2020 02:07:55 No.1492014 View Reply Original Report

Quoted By: >>1494436

Why are cyclists so inconsiderate of the environment?

33 posts and 3 images omitted

Anonymous

Anonymous Fri 29 May 2020 11:48:20 No.1494435 Report

Quoted By:

>>1492076
in the UK there's so many places where there's a "Cyclists dismount" sign, like for a crossing or where the bike path is close to pedestrian paths. it's so ridiculous, they design everything for old grandmas on dutch bikes because they want to make the infrastructure accessible for everyone (which is obviously a good thing, the more people on bikes and not in cars the better) but forget that if you make the cycling routes constantly stop-start and full of barriers and stops and crossings then less people will cycle because they think it's too much of a hassle.

Copenhagen does it right, separated bike lanes with separate traffic lights and generally you can cross the city centre without stopping more than two or three times. All while separated from pedestrians and vehicles.

Anonymous

Anonymous Fri 29 May 2020 11:53:49 No.1494436 Report

Quoted By: >>1494492

>>1492014
>what is a proper chicane / s curve or speed bump

What a stupid solution

Anonymous

Anonymous Fri 29 May 2020 13:44:32 No.1494482 Report

Quoted By: >>1494483

>>1493636
wtf based niggers are real?

Anonymous

View Same Google ImgOps iqdb SauceNAO 1566867577275.jpg, 130KiB, 900x900

Anonymous Fri 29 May 2020 13:47:40 No.1494483 Report

Quoted By:

>>1494482
Of course.

https://www.youtube.com/watch?v=pNccVYLwkFQ

Anonymous

Anonymous Fri 29 May 2020 14:48:01 No.1494492 Report

Quoted By:

>>1494436
cobbled speed bumps piss me off

91KiB, 576x1024, WhatsApp Image 2020-05-23 at 19.01.32 (1).jpg

View Same Google ImgOps iqdb SauceNAO

Greatest pilot ever seen

Anonymous Wed 27 May 2020 13:39:27 No.1493331 View Reply Original Report

Quoted By: >>1494158

Why can't you be more like this guy? He really seems to know what he's doing. It would be a crying shame if he didn't have a flying job after all this, don't you think?

11 posts and 4 images omitted

Anonymous

Anonymous Thu 28 May 2020 21:35:52 No.1494146 Report

Quoted By: >>1494252 >>1494468

>>1494140
To be fair, most railroaders and old heads are fucking retarded.

Anonymous

Anonymous Thu 28 May 2020 22:10:58 No.1494158 Report

Quoted By: >>1494230

>>1493331
Good to see some nigger who isn’t swaggot martin being shit on for being an insta hoe, nearly every insta hoe should be hung on a cross, especially pilots.

Anonymous

Anonymous Fri 29 May 2020 00:10:07 No.1494230 Report

Quoted By:

>>1494158
based

Also, "Swaggot Martin" is absolutely a hilarious name for that faggot, since he is a literal faggot.

Anonymous

Anonymous Fri 29 May 2020 00:59:18 No.1494252 Report

Quoted By:

>>1494146
post paystub

Anonymous

Anonymous Fri 29 May 2020 13:01:13 No.1494468 Report

Quoted By:

>>1494146
i'm only slightly autistic, calm down

88KiB, 610x413, Bicycle-VS-Motorcycle.jpg

View Same Google ImgOps iqdb SauceNAO

Anonymous Wed 27 May 2020 20:54:56 No.1493521 View Reply Original Report

Quoted By:

You have to choose between owning solely a motorcycle or a bicycle for the rest of your life. You can't have one with the other. You can select any type of motorcycle/bicycle.

Which do you chose?

32 posts and 3 images omitted

Anonymous

Anonymous Fri 29 May 2020 05:53:53 No.1494344 Report

Quoted By:

>>1494331
>a Honda Ruckus or something
this is adult with means talk here anon

so is a good e-bike

and if you're an adult with means then you should have a license.

Anonymous

Anonymous Fri 29 May 2020 06:55:24 No.1494362 Report

Quoted By:

>>1494331
The maximum power output for e-bikes classified as low-speed electric vehicles (and therefore not subject to motor vehicle laws) is 750w in 26 states. Technically, e-bikes sold in these 26 states which are more powerful than 750w are restricted to off-road only use, although there's no practical enforcement if you aren't riding at 50mph. Most of the rest of the other states classify e-bikes as motor vehicles subject to normal registration laws.

So yeah, while you can technically ride e-bikes without a license, under the majority of US state laws, there's a maximum power output which is still about half that of a 50cc engine. I'd imagine that enforcement will get more severe as more people discover how hard it is to distinguish "non motor vehicle" e-bikes from the monsters that have the power to basically work like motorcycles. For now, e-bikes still have limited range and the massively powerful models are still like 10 grand.

Anonymous

Anonymous Fri 29 May 2020 08:42:23 No.1494379 Report

Quoted By:

All the meming about replacing small motorbikes aside I feel the average commuter would be happier with a pedal assist ebike that came with minimal bullshit than they would be with a 50cc moped

A pedal assist bike that gives you back the same or half again the power you put in up to say 300 watts total (you + the motor) would be basically GOAT, not really capable of going much faster than a fit cyclist on a road bike on the flat, but destroying hills and allowing you to keep pace with traffic while weighed down with groceries

Issue at the minute is that the good stuff is still expensive and the cheap stuff works but has a massive jank factor, there needs to be an entry level model stripped down to the essentials so there's a pattern to follow for manufacturers and an ebike with public cool appeal, even if that means a small motor and low power output, like a Honda Cub for ebikes.

Anonymous

Anonymous Fri 29 May 2020 10:45:06 No.1494417 Report

Quoted By:

>>1494339
ya I know they're maintenance pigs and the local ducati shop is cunts but still

Anonymous

Anonymous Fri 29 May 2020 12:33:14 No.1494452 Report

Quoted By:

>>1494331
In the future they will get more regulated and you'll most likely need a license for them. As it should be

688KiB, 1450x1476, memetrains.png

View Same Google ImgOps iqdb SauceNAO

Anonymous Tue 31 Mar 2020 16:48:28 No.1465619 View Reply Last 50 Original Report

Quoted By:

What's your favorite railroad and why?

143 posts and 58 images omitted

Anonymous

View Same Google ImgOps iqdb SauceNAO 7614cs-b&o.jpg, 90KiB, 700x520

Anonymous Sat 23 May 2020 16:26:24 No.1491168 Report

Quoted By: >>1493826 >>1494340

unquestionable soul

Anonymous

Anonymous Thu 28 May 2020 08:43:21 No.1493826 Report

Quoted By:

>>1491168
I like it!

Anonymous

View Same Google ImgOps iqdb SauceNAO chessie.jpg, 99KiB, 900x612

Anonymous Fri 29 May 2020 05:44:27 No.1494340 Report

Quoted By: >>1494431

>>1491168
I was looking up pictures of Chessie switchers to see what they looked like (I remember road units coming through town in the 80s) and found out they had a shop switcher in West Virginia that was battery powered. It was built in 1917 by GE and is preserved at the B&O Railroad Museum in Baltimore, although it is apparently not on display.

http://www.borail.org/CO-NoX-5000.aspx

Anonymous

Anonymous Fri 29 May 2020 11:34:29 No.1494431 Report

Quoted By: >>1494432

>>1494340
though I was Looking at A Sentinel for a second.

Anonymous

Anonymous Fri 29 May 2020 11:35:44 No.1494432 Report

Quoted By:

>>1494431
*thought

190KiB, 1200x1200, Shimano-M6100-Deore-12-Speed-MTB-Drivetrain-Groupset-Groupsets.jpg

View Same Google ImgOps iqdb SauceNAO

Anonymous Thu 28 May 2020 16:55:23 No.1494038 View Reply Original Report

Quoted By:

Shimano Deore M6100. Way better than the SRAM alternatives?

10 posts and 1 image omitted

Anonymous

Anonymous Fri 29 May 2020 01:49:08 No.1494267 Report

Quoted By:

>>1494132
you actually bothered to sit there and count instead of looking up "CS-M6100" on si.shimano.com?

PS: It's exactly the same tooth count as on the XTR M9100, XT M8100, and SLX M7100 cassettes

Anonymous

Anonymous Fri 29 May 2020 01:54:10 No.1494270 Report

Quoted By:

>>1494148
>I bet the chain wears really fast compared to the old system. 8 speed chains last ages. 1X is a con to get people to consume bike parts at a faster rate.

new chains, in fact, last a longer than the old stuff. Way better metalurgy/coatings/etc. Also 1x chainrings with fat steel teeth are IMMORTAL compared to old triples.

the old square taper cartridge BBs were objectively better, tho. I still have a genuine BB-UN91 that'll spin for DAYS

Also, as a longtime 3x9 holdout: 1x is genuinely more fun on a mountain bike. I was shocked at how much mental energy I'd been spending thinking about the state of my drivetrain and how much more I could just relax and enjoy the terrain.

Trybo Bike Tech !T2TiVG4UMA

Trybo Bike Tech !T2TiVG4UMA Fri 29 May 2020 09:27:40 No.1494381 Report

Quoted By:

>>1494132
Yes. It a cheeky 1-upping sram. Although, officially is to keep their "RythymStep" or thereabouts thingy going on.

Trybo Bike Tech !T2TiVG4UMA

Trybo Bike Tech !T2TiVG4UMA Fri 29 May 2020 09:29:10 No.1494382 Report

Quoted By:

>>1494059
I'm fairly certain that front shifting on 1x groups is pretty much the same on both brand's stuff.

Trybo Bike Tech !T2TiVG4UMA

View Same Google ImgOps iqdb SauceNAO sharkfin.jpg, 160KiB, 1023x683

Trybo Bike Tech !T2TiVG4UMA Fri 29 May 2020 09:32:27 No.1494384 Report

Quoted By:

>>1494187
It's a primitive chain catcher.

20KiB, 533x400, asshatchet.jpg

View Same Google ImgOps iqdb SauceNAO

/CPG/

Anonymous Mon 27 Apr 2020 10:38:48 No.1478176 View Reply Last 50 Original Report

Quoted By: >>1493587

>You're in the club and this guy comes up to you, destroys your soft perineal tissues and drains your wallet.
How do you respond anons?

Welcome to "Contact Points General", where we discuss bike components that contact your body to a bicycle, as well as gloves, shoes, shorts, and other clothing that engages you to your machine.

ITT: we ask questions and discuss parts, including cockpit components, pedals, saddles and so forth and their ergonomics, fitting, comfort, and performance. Bike fitting discussions also welcome.

163 posts and 34 images omitted

Anonymous

Anonymous Wed 27 May 2020 23:04:45 No.1493587 Report

Quoted By:

>>1478176
my two new SMP TRK mediums just came in. wish me luck

Anonymous

Anonymous Thu 28 May 2020 00:30:47 No.1493649 Report

Quoted By:

>>1493517
I have 3 taint relievers and 3 non-tainters and they're all mostly samey to me if I'm wearing bibs with decent pads, tho if I had to pick one to standardize around it would be the shimano pro stealth, because after 75 miles or so it's definitely the best one, beating out the berthoud and terry fly. If I'm in jeans or normal shorts the taint relievers provide some extra ventilation for my gooch which is nice

Anonymous

Anonymous Thu 28 May 2020 12:12:50 No.1493933 Report

Quoted By:

>>1484478
>lower saddle adds wats in many cases

Anonymous

View Same Google ImgOps iqdb SauceNAO maillard-cxc-pedals-christophe-t (...).jpg, 427KiB, 800x800

Anonymous Fri 29 May 2020 04:35:58 No.1494314 Report

Quoted By: >>1494370

How do I correctly set up the length of maillard aero pedal toe cages? They have an adjustable cage length but most toe clip pedals are fixed. I already know how to thread the strap but these are weird.

Also how should I take care of the leather straps (mine are white christophe)? Or should I just swap them to nylon ones and sell them?

And any tips for use?

Anonymous

Anonymous Fri 29 May 2020 07:54:01 No.1494370 Report

Quoted By:

>>1494314
Place ball of foot on pedal in your normal riding position that you're comfortable with, and adjust cage accordingly. I don't see the problem?

103KiB, 800x800, Nitto Campee.jpg

View Same Google ImgOps iqdb SauceNAO

Anonymous Mon 18 May 2020 14:39:03 No.1488672 View Reply Original Report

Quoted By:

>why yes i do have a front basket and panniers

18 posts and 8 images omitted

Anonymous

Anonymous Tue 19 May 2020 19:47:44 No.1489287 Report

Quoted By: >>1489290

>>1488811
>>1488812
I have that, it's a beast. You could probably stick a seat on it and carry a passenger on it.

Anonymous

Anonymous Tue 19 May 2020 19:52:42 No.1489290 Report

Quoted By: >>1489308

>>1489287
not only is my bike fat but so is my ass.
I wouldn't want to stress that bike with more than child.

Anonymous

Anonymous Tue 19 May 2020 20:21:18 No.1489308 Report

Quoted By:

>>1489290
>I'm trying to bring home groceries but I'm dummy thicc and the clap of my ass keeps popping my tires

Anonymous

Anonymous Sat 23 May 2020 22:43:19 No.1491376 Report

Quoted By:

>>1488812
>axiom
I was looking at those before I got a tubus. The flimsy attachment points scared me off. I met a dude with one and it would literally flop back and forth just from the weight in his pannier shifting

Anonymous

Anonymous Fri 29 May 2020 05:11:45 No.1494324 Report

Quoted By:

>>1488731
>curiosity intensifies

4MiB, 1806x1106, HardRock_2_40.png

View Same Google ImgOps iqdb SauceNAO

/90s/MBT Is that a girls bike? edition

Anonymous Fri 01 May 2020 18:50:26 No.1480141 View Reply Last 50 Original Report

Quoted By:

>ctrl f 90s
>Zero results

Post your 90s MTBs and talk about your plans for them. Post a picture from a ride while you're at it.

196 posts and 53 images omitted

Capcode	All Only User Posts Only Verified Posts Only Moderator Posts Only Manager Posts Only Admin Posts Only Developer Posts Only Founder Posts
Show Posts	All Only With Images Only Without Images Only Spoiler Images Only Non-Spoiler Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Threads by latest replies - Page 11

On these archives

On these boards

Your latest searches

Greatest pilot ever seen

/CPG/

/90s/MBT Is that a girls bike? edition