you can try to measure the efficiency of the drivetrain. for instance how much it takes just to spin the wheel without load. maybe attach a motor to the pedals.
it might be better to use an electric transmission from pedal to wheel.
Terribly inefficient drivetrain. Complex, lots of joints and moving parts, indirect chain line passing under the rider. You should have asked me first. You would have gone over 65 easily.
@BikerCK ..I don't understand...I think either I or Youtube got this comment mixed up with another video. I can't even see the chain line in this video. I think it was meant for another video.
@GuyFawkes40 Your claims are not supported by the latest data acquisition equipment (PowerTap etc).The friction losses of indirect chain lines have recently been shown to be far less significant than previously assumed. Running a chain around a smaller sprocket set (say 39/11) creates far greater friction losses than a cross chain line across 53/15. The chain-line friction losses here would be so small as to be insignificant. BikerCK, did the hub have a few thousand run-in miles to loosen it up?
@ClownFight ..I think either I or youtube got this comment confused with another video. I just watched it again and I can't even see a chain line. Although I can say one thing...If a person is trying to make the most efficient chainline possible, you would certainly eliminate as many changes in chain line as possible. I do agree with your comment concerning the diameter of cogs, the larger they are, the more efficient they are.
You are right, wind speed is a factor in determining whether a run is a record. The wind (in any direction) cannot exceed 6 (six) kilometers per hour (1.67 meters per second). If you're interested in reading the complete rules you can visit the International Human Powered Vehicle Association website (IHPVA)
@jalit if you use 3 times the same tire yes, but who says you need to ? - use 1 big tire and 2 small ones and than the problem is away and you can use solar cells on your trike !
DONT READ THIS IT ACTUALLY WORKS YOU WILL BE KISSED ON THE NEAREST POSSIBLE LOVE OF YOUR LIFE TOMMARROW WILL BE THE BEST DAY OF YOUR LIFEHOWEVER IF YOU DO NOT POST THIS COMMENT TO AT LEAST THREE VIDEOS YOU WILL DIE THE NEXT 2 DAYS NOW UV STARTED THIS SO DUNT STOP THIS IS SO SCARY PUT THIS IN AT LEAST 5 VIDEOS IN THE NEXT 143 MINUTES WHEN UR DONE PRESS F6 AND UR LOVERS NAME WILLL APPEAR ON THE SCREEN IN BIG LETTERS THIS IS SO SCARY CAUSE IT WORKS
I assume you're just teasing, but just in case, here's the applicable rule from the IHPVA
3.0 LAND VEHICLE COMPETITIONS
3.1 Vehicle Requirements
3.1.1 Power: Vehicles must be driven solely by human power. Non-human power sources (batteries, solar cells, etc.) are permitted only for powering sensors, displays, communication equipment and lights. Control devices, cooling fans, powered aerodynamic devices, etc., may not be powered from non-human sources.
A few have a retractable outrigger with a small skateboard wheel to hold them upright until they're going fast enough to be stable on two wheels (usually about ten metres or so), and the helpers aren't allowed to give the bike a push when they start, all they do is keep the bike upright until it's going fast enough to stay up. They can't do that for more than 10 metres if I recall the rules correctly.
Sorry for the delay in my reply. Here's some answers:
The riders have just enough air for the 5 mile run. They will often be a bit woozy by the time the run is over, as the bikes are pretty much sealed tight.
The trikes compete in a different category from the bikes.
During the launch, some riders have devised a cradle that holds the bike upright for the first few metres. A few have a retractable outrigger with a small skateboard wheel to hold them. more....
i'm fascinated by the design of this trike. i saw a think about battle mountain with all these bikes. they looked akward launching and when they crashed at the end. i was wandering if you could compete with a trike. i thought the drag with a trike would be too much but the idea of having areodynamic wheel outside the cockpit is brilliant. also why can't they build a ramp to help them launch? they don't start from a stand still any way. somebody helps them launch.
Since clear canopies are so expensive & hard to make, it makes sense to use cheap, light-weight video cameras and monitors instead. I wouldn't want that solution for a road vehicle, but for a straight-line racer, it makes perfect sense. It has to keep the rider cooler too!
@deezynar Not true! If the large monitor is removed and a hole is cut in the canopy about 8 inches wide by 19 inches long, right in front of the rider. It could then be covered with a thin clear plastic sheet, inset to be nice and flush with the outside surface and screwed all around to make it conform to the canopy’s shape. This would be much less weight than the camera, battery and monitor and not upset the aerodynamics.
@deezynar Not true! If the large monitor is removed and a hole is cut in the canopy about 8 inches wide by 19 inches long, right in front of the rider. It could then be covered with a thin clear plastic sheet, inset to be nice and flush with the outside surface and screwed all around to make it conform to the canopy’s shape. This would be much less weight than the camera, battery and monitor and not upset the aerodynamics.
You make a good case, that would be a good solution. This vehicle seems to have a lot of steering hardware in the driver's line of sight and that may have been a factor in their decision to go w/ cameras.
Also, these streamliner folks don't seem to be obsessed w/ weight. I think it's just because they run on a level track.
At 0:36 sec on the video there's a brief shot of the small video screen (attached to a camera at the front of the trike) that provides the exterior view.
Well, the speed runs are actually kind of boring. A bike quietly and quickly flashes by and it's done. Add to that the fact I can only be in one place at a time and WYSIWYG! :-) (the clip is a compilation of two runs by the trike... with me the shooter at the start for one and mid-course for the other).
@polishranger She has a little blow dryer and she is blowing air into the cockpit. Because the trike is pretty much air tight, there's a limited amount of air that will get inside the machine during the run, so it's important to make sure the rider has as much oxygen as possible, and this way he won't use up all his air waiting for his speed run.
@BikerCK i thought it had something to do with air. it took her too long to be fastening something so air was my next thought. thanx for clarifying it for me. btw this run takes like 5 miles right? in any case does a rider have enough oxygen there even if it's pumped into the cockpit? have you heard of any riders ever passing out. and also this is the first i hear of a trike on this road. are trikes on there ofter?
you can try to measure the efficiency of the drivetrain. for instance how much it takes just to spin the wheel without load. maybe attach a motor to the pedals.
it might be better to use an electric transmission from pedal to wheel.
make sure bearings run perfect.
and maybe laquer and polish the hull
DanFrederiksen 2 weeks ago
Terribly inefficient drivetrain. Complex, lots of joints and moving parts, indirect chain line passing under the rider. You should have asked me first. You would have gone over 65 easily.
GuyFawkes40 2 months ago
@GuyFawkes40 We'll look forward to your record-setting run! :-) What's your best result so far?
BikerCK 2 months ago 6
@BikerCK ..I don't understand...I think either I or Youtube got this comment mixed up with another video. I can't even see the chain line in this video. I think it was meant for another video.
GuyFawkes40 2 months ago
@GuyFawkes40 Your claims are not supported by the latest data acquisition equipment (PowerTap etc).The friction losses of indirect chain lines have recently been shown to be far less significant than previously assumed. Running a chain around a smaller sprocket set (say 39/11) creates far greater friction losses than a cross chain line across 53/15. The chain-line friction losses here would be so small as to be insignificant. BikerCK, did the hub have a few thousand run-in miles to loosen it up?
ClownFight 2 months ago
@ClownFight ..I think either I or youtube got this comment confused with another video. I just watched it again and I can't even see a chain line. Although I can say one thing...If a person is trying to make the most efficient chainline possible, you would certainly eliminate as many changes in chain line as possible. I do agree with your comment concerning the diameter of cogs, the larger they are, the more efficient they are.
GuyFawkes40 2 months ago
@GuyFawkes40 I was wondering why they had wooden boards instead of some aluminum tubing on the pedal assembly.
Kudos to the builders. BUT, there IS room for improvement. Some of our constructive criticism might be correct.
TheSunergizer 1 week ago
Is like Track and Field rules, where the tailwind has to be below a certain speed for a speed record to qualify as an official standard?
1stPlaceDirector 9 months ago
@1stPlaceDirector
You are right, wind speed is a factor in determining whether a run is a record. The wind (in any direction) cannot exceed 6 (six) kilometers per hour (1.67 meters per second). If you're interested in reading the complete rules you can visit the International Human Powered Vehicle Association website (IHPVA)
BikerCK 9 months ago
2 wheels are better than 3 because of lower rolling resistance.
jalit 9 months ago
@jalit if you use 3 times the same tire yes, but who says you need to ? - use 1 big tire and 2 small ones and than the problem is away and you can use solar cells on your trike !
xparade0de 3 months ago
This has been flagged as spam show
DONT READ THIS IT ACTUALLY WORKS YOU WILL BE KISSED ON THE NEAREST POSSIBLE LOVE OF YOUR LIFE TOMMARROW WILL BE THE BEST DAY OF YOUR LIFEHOWEVER IF YOU DO NOT POST THIS COMMENT TO AT LEAST THREE VIDEOS YOU WILL DIE THE NEXT 2 DAYS NOW UV STARTED THIS SO DUNT STOP THIS IS SO SCARY PUT THIS IN AT LEAST 5 VIDEOS IN THE NEXT 143 MINUTES WHEN UR DONE PRESS F6 AND UR LOVERS NAME WILLL APPEAR ON THE SCREEN IN BIG LETTERS THIS IS SO SCARY CAUSE IT WORKS
syedsaboorarif 10 months ago
I assume you're just teasing, but just in case, here's the applicable rule from the IHPVA
3.0 LAND VEHICLE COMPETITIONS
3.1 Vehicle Requirements
3.1.1 Power: Vehicles must be driven solely by human power. Non-human power sources (batteries, solar cells, etc.) are permitted only for powering sensors, displays, communication equipment and lights. Control devices, cooling fans, powered aerodynamic devices, etc., may not be powered from non-human sources.
BikerCK 11 months ago
If the cctv isn't run off a dynohub, then they're totally cheating.
fugue137 11 months ago
A few have a retractable outrigger with a small skateboard wheel to hold them upright until they're going fast enough to be stable on two wheels (usually about ten metres or so), and the helpers aren't allowed to give the bike a push when they start, all they do is keep the bike upright until it's going fast enough to stay up. They can't do that for more than 10 metres if I recall the rules correctly.
BikerCK 1 year ago
Hi polishranger:
Sorry for the delay in my reply. Here's some answers:
The riders have just enough air for the 5 mile run. They will often be a bit woozy by the time the run is over, as the bikes are pretty much sealed tight.
The trikes compete in a different category from the bikes.
During the launch, some riders have devised a cradle that holds the bike upright for the first few metres. A few have a retractable outrigger with a small skateboard wheel to hold them. more....
BikerCK 1 year ago
i'm fascinated by the design of this trike. i saw a think about battle mountain with all these bikes. they looked akward launching and when they crashed at the end. i was wandering if you could compete with a trike. i thought the drag with a trike would be too much but the idea of having areodynamic wheel outside the cockpit is brilliant. also why can't they build a ramp to help them launch? they don't start from a stand still any way. somebody helps them launch.
polishranger 1 year ago
Since clear canopies are so expensive & hard to make, it makes sense to use cheap, light-weight video cameras and monitors instead. I wouldn't want that solution for a road vehicle, but for a straight-line racer, it makes perfect sense. It has to keep the rider cooler too!
deezynar 1 year ago
@deezynar Not true! If the large monitor is removed and a hole is cut in the canopy about 8 inches wide by 19 inches long, right in front of the rider. It could then be covered with a thin clear plastic sheet, inset to be nice and flush with the outside surface and screwed all around to make it conform to the canopy’s shape. This would be much less weight than the camera, battery and monitor and not upset the aerodynamics.
AZFIREBALL56 10 months ago
@deezynar Not true! If the large monitor is removed and a hole is cut in the canopy about 8 inches wide by 19 inches long, right in front of the rider. It could then be covered with a thin clear plastic sheet, inset to be nice and flush with the outside surface and screwed all around to make it conform to the canopy’s shape. This would be much less weight than the camera, battery and monitor and not upset the aerodynamics.
AZFIREBALL56 10 months ago
@AZFIREBALL56
You make a good case, that would be a good solution. This vehicle seems to have a lot of steering hardware in the driver's line of sight and that may have been a factor in their decision to go w/ cameras.
Also, these streamliner folks don't seem to be obsessed w/ weight. I think it's just because they run on a level track.
deezynar 10 months ago
My friend's tricycle went 56 mph in like 82 (?) AT SEA LEVEL .
It weighed 82 lbs and was built to carry groceries in the rain.
My friend now works for Burt Rutan - no surprise !
goodgigs 1 year ago
I like the vision, looks good!
captaingeary 1 year ago
how do you see where you are going?
KrunchyJD 1 year ago
@KrunchyJD
At 0:36 sec on the video there's a brief shot of the small video screen (attached to a camera at the front of the trike) that provides the exterior view.
BikerCK 1 year ago
@BikerCK Cool
I bet thats good fun !
Whats it like going that fast under your own steam?
KrunchyJD 1 year ago
YEHA , ready for Green-Technology Revolutio !
Fuck the Petrolmaffia !!!!!
LOVE & PEACE forever
done698 1 year ago
What are the two slides attached to the pedals for?
WorldStove 2 years ago
I believe the design is to save space inside the cockpit.
BikerCK 2 years ago
@WorldStove Some kind of inefficient rear wheel drive system.
jalit 9 months ago
Great Video!
Walt Barrett
chinadepot 2 years ago
Well, the speed runs are actually kind of boring. A bike quietly and quickly flashes by and it's done. Add to that the fact I can only be in one place at a time and WYSIWYG! :-) (the clip is a compilation of two runs by the trike... with me the shooter at the start for one and mid-course for the other).
thx for yr comments.
BikerCK 2 years ago
@BikerCK ok what is she doing at 0:49?
polishranger 1 year ago
@polishranger She has a little blow dryer and she is blowing air into the cockpit. Because the trike is pretty much air tight, there's a limited amount of air that will get inside the machine during the run, so it's important to make sure the rider has as much oxygen as possible, and this way he won't use up all his air waiting for his speed run.
BikerCK 1 year ago
@BikerCK i thought it had something to do with air. it took her too long to be fastening something so air was my next thought. thanx for clarifying it for me. btw this run takes like 5 miles right? in any case does a rider have enough oxygen there even if it's pumped into the cockpit? have you heard of any riders ever passing out. and also this is the first i hear of a trike on this road. are trikes on there ofter?
polishranger 1 year ago
Interesting to watch the setup... but not much video of it doing the speed run. bummer.
dregerclock 2 years ago
Did he have a small TV screen in the cockpit with a camera somewhere on the front of the trike? That would make sense as I didn't see any windows.
MewFushisDad 2 years ago