Boat tail project based on a single wheel trailer...

[BamZipPow]

Originally Posted by gumby79

Maby with a wirless carger but the wheel must b alowed to spin full circle witch would require a wiper/brush system.

Yes, using my existing trailer wiring system would require a ring/wiper setup...unless I'm able to build in a simple wheel based generator and capacitor system to power the light.

[BamZipPow]

Finally got around to removing the wood supports on the wheel pant rails. This will allow me to keep the width of the wheel pant as skinny as possible until I work out a way to incorporate the shock system. I still have to trim the bolts down.





I'm gitting ready to transition from Coroplast to aluminum sheeting...probably diamond plate.

[BamZipPow]

New wheel pant dimensions will be around 48" long and at least 7.5" wide up front. The width will probably grow as wide as 9" due to making the body plan tapered. The main part of the wheel pant will be around 36" long. I know I want to make the nose separate and floating from the tail portion of the wheel pant fer ease of disassembly/access as well as impact mitigation.

[gumby79]

1 a you tube video on Inducion power transmission using 2 copper coils same # of turns (keeps the voltage raito the same 1:1 . If you go 2:1 you get 6v or 24v. Theas 2 coils play catch with eletrons accrost an air gap.
Put 1 above and below on the piviot shaft.

https://youtu.be/TYA8wq7YYdI
Caution
Doing this with AC will cause heating down to to just under 60Hz. A frend did some damage with a 100' coil of extenchen cord and a table saw. Some one put a mettle trash can on the floor in the middle of the cord. Thinge got hot .. at low amprage (the thing gos for how many days on 3 AAA's?) And dDC may be fine . Down side is that DC will magnetizethe steel shaft if to close.

At this point you posted the 2nd post


2 nose cone made from fine chain male. Use piano wire from The Hobby Shop. ( various gauges/spring rate case hardened spring steel ).can hold the shape of the male. And be triped/cycled for a long lime . Especially if set up as a fulcrum . Like a bow less the string. Pull the top tighter to increases the preload(non deflection air speed). The bottom of corce would be restraining against the other springs . Curves like a tail wing root could be acheved by a good chain male maker.with pleating .
? Would it be better to make the leading profile more houre glass shaped?
The chain male idea may fail in a montana winter load up with ice to were the only way to move from impact is to bend the rings.
.
PS
How bad could the rudder/pant wind vain effect, affect handling with sever side wind loading 70mph gusts could see the caster be less of a force than the wind load . As the tire gets further off line from the direction of travle it cams down gaining traction by lifting the tail like steering a red rider wile pushing it back words. In realy bad crosswinds or tailwinds could cause sheding vortexes to amplify this to shakeing your tail fethers like the shoping cart crazy wheel. Even at unnoticable levles will accelerate tire ware and reduce FE on a pairabolic with wind speed. .
Picture a dead strate high way wind 90°to travle pick a side . The wind is making small drifts of . Your choice sand or snow. Ether way you have moving oscillating bars of enough Grit to cause good traction and bars of zero traction. For the snow example were the wind has blowen all the snow clear to the blackice that is the 0 bar the small drifts are the good traction. 25-35mph forward and 40 from the side on the ice patch every 3' it would turn side ways to face the wind. At times the oscillations would time out so that both axles are on snow. Next both truck axles are on ice the only axle with traction is pointed at the wight line . This could get real sketchy real fast. Not so bad in Texas. But the sand, dirt , leaves can all be substituted with there own unique tendancys, just higher ahead air speed. None as bas as this worst case senerieo,on ice. .
It would taks a camera back there to see what its dooing at road speed and dynamic yaw air flow. And shedding vortexes off the truck tires. This is how I found a g force induced rear steer dynamic yaw in my dodge, 26 years and< 300k mi former farm truck wada expect. Turn left to go right.

[freebeard]

I know I want to make the nose separate and floating from the tail portion of the wheel pant fer ease of disassembly/access as well as impact mitigation.

When your backing up, if I remember correctly.

In realy bad crosswinds or tailwinds could cause sheding vortexes to amplify this to shakeing your tail fethers like the shoping cart crazy wheel. Even at unnoticable levles will accelerate tire ware and reduce FE on a pairabolic with wind speed. .

For test purposes attach a pole to the wheel pant with a tuft on the end. Then watch to see how twitchy it is.

[BamZipPow]

Once I git an extension fer my rear view camera, I should be able to tempoarily mount it on the back end of Dark Aero and see what's going on.

[Piotrsko]

I myself would just hang a curtain on the trailer sides. What ever else going on under there, I can't forsee making much change.

[cRiPpLe_rOoStEr]

Originally Posted by BamZipPow

I'm gitting ready to transition from Coroplast to aluminum sheeting...probably diamond plate.

It would be interesting to say the least, to find out the effects of diamond-plate on the aerodynamics compared to a smoothier sheetmetal.

[freebeard]

Why not aluminum skinned coroplast?

https://search.yahoo.com/search?p=aluminum+coroplast

[BamZipPow]

Originally Posted by gumby79

1 a you tube video on Inducion power transmission using 2 copper coils same # of turns (keeps the voltage raito the same 1:1 . If you go 2:1 you get 6v or 24v. Theas 2 coils play catch with eletrons accrost an air gap.
Put 1 above and below on the piviot shaft.

https://youtu.be/TYA8wq7YYdI
Caution
Doing this with AC will cause heating down to to just under 60Hz. A frend did some damage with a 100' coil of extenchen cord and a table saw. Some one put a mettle trash can on the floor in the middle of the cord. Thinge got hot .. at low amprage (the thing gos for how many days on 3 AAA's?) And dDC may be fine . Down side is that DC will magnetizethe steel shaft if to close.

At this point you posted the 2nd post


2 nose cone made from fine chain male. Use piano wire from The Hobby Shop. ( various gauges/spring rate case hardened spring steel ).can hold the shape of the male. And be triped/cycled for a long lime . Especially if set up as a fulcrum . Like a bow less the string. Pull the top tighter to increases the preload(non deflection air speed). The bottom of corce would be restraining against the other springs . Curves like a tail wing root could be acheved by a good chain male maker.with pleating .
? Would it be better to make the leading profile more houre glass shaped?
The chain male idea may fail in a montana winter load up with ice to were the only way to move from impact is to bend the rings.
.
PS
How bad could the rudder/pant wind vain effect, affect handling with sever side wind loading 70mph gusts could see the caster be less of a force than the wind load . As the tire gets further off line from the direction of travle it cams down gaining traction by lifting the tail like steering a red rider wile pushing it back words. In realy bad crosswinds or tailwinds could cause sheding vortexes to amplify this to shakeing your tail fethers like the shoping cart crazy wheel. Even at unnoticable levles will accelerate tire ware and reduce FE on a pairabolic with wind speed. .
Picture a dead strate high way wind 90°to travle pick a side . The wind is making small drifts of . Your choice sand or snow. Ether way you have moving oscillating bars of enough Grit to cause good traction and bars of zero traction. For the snow example were the wind has blowen all the snow clear to the blackice that is the 0 bar the small drifts are the good traction. 25-35mph forward and 40 from the side on the ice patch every 3' it would turn side ways to face the wind. At times the oscillations would time out so that both axles are on snow. Next both truck axles are on ice the only axle with traction is pointed at the wight line . This could get real sketchy real fast. Not so bad in Texas. But the sand, dirt , leaves can all be substituted with there own unique tendancys, just higher ahead air speed. None as bas as this worst case senerieo,on ice. .
It would taks a camera back there to see what its dooing at road speed and dynamic yaw air flow. And shedding vortexes off the truck tires. This is how I found a g force induced rear steer dynamic yaw in my dodge, 26 years and< 300k mi former farm truck wada expect. Turn left to go right.

Thanks fer the inputs!

One of the neat things with the single wheel platform is that the wheel will always swivel in line with the direction of travel so there really isn't any directional input from the wheel towards the direction of travel. I believe my single wheel setup isn't wobbling like you would expect from a shopping cart caster wheel. I'm not seeing the wear on any of the tires that would indicate that issue or feeling the motion while traveling at speed. Of course, a camera recording the swivel wheel in motion would be great but I haven't rigged up anything at the moment.

I'm still investigating several things to the wheel assembly that requires the wheel pant light be powered on it's own fer now. I don't want to invest a lot of time or electrical work into making the wheel pant light part of Dark Aero's lighting system or building a specialized generator. It's not that high of a priority at the moment as it was only a thought in progress. Fer now, I just have to remember go back there to turn the light on/off when I need it or swap out the batteries.

As I build my skill sets, I'll have to see how much of my own capability to fab in the various types of available materials without breaking the bank.