Random Wind Tunnel and Smoke Pictures Thread

[kach22i]

https://ecomodder.com/forum/showthre...a-39354-6.html

member-aerohead-albums-other+vehicles+1-picture153-honda-insight-hybrid-fully-integrated-streaml.jpg (1 of 1) 05-19-2021 02:38 PM

[aerohead]

I needed to remind the viewers that this is a cut and paste image, derived from an official HONDA photograph, but not a 'real' image.

[Piotrsko]

Thanks for the insight, I was having difficulties locating the pivot point and figuring out how the last set of wheels worked in a turn.

Since it's revealed to be an internet picture, it doesn't need to make sense

[kach22i]

Originally Posted by aerohead

........ not a 'real' image.

So that explains why the smoke hasn't fluttered away by the time it's gotten to the tail.

Originally Posted by Piotrsko

Thanks for the insight, I was having difficulties locating the pivot point and figuring out how the last set of wheels worked in a turn............

In lieu of what was "illustrated", perhaps an aircraft style tailwheel would work?

https://www.aircraftspruce.com/catal...SABEgJ0F_D_BwE

[aerohead]

Originally Posted by Piotrsko

Thanks for the insight, I was having difficulties locating the pivot point and figuring out how the last set of wheels worked in a turn.

Since it's revealed to be an internet picture, it doesn't need to make sense

Somewhere here at the aero forum is a thread dedicated to the gap-filled, full-boat-trailer I pulled out to Bonneville and back.
I was given permission to run it for a speed record but after running the track 'naked' realized, without access to the long-course, there'd be no reason to attempt it. The weight-to-power ratio precludes any chance to hit 130-mph on the short-course, a pre-condition for the 2-mile, which is a pre-condition to the 12-mile.
I was able to engineer an apparatus which allows for full articulation, in pitch, yaw, and roll, without any interference, while maintaining the gap closure in straight-ahead driving.
The HONDA Insight setup depicted would use the same technology. It's already proven itself. It's a fixed, single-wheeler. It simply trails the vehicle, like any trailer. It backs like any trailer.
The vertical fin provides an elevated 3rd brake light, assurance to the driver that the trailer is still 'THERE', as it's invisible from the cabin, also as a visual aid when backing.

[aerohead]

This is close to how BamZipPow's one-wheeler is configured, but with a very important caveat.
Since his attachment system does away with any need for 'roll' and the wheel pivot is perfectly vertical, his wheel fairing cannot strike the belly of the trailer when turning.
If the wheel were suspended on an angled lolly-shaft, as soon as the wheel turned, it would be in interference with body and the fairing would be ripped off immediately.
Since the fairing can cut the wheel drag by up to 70%, it's vitally important to protect it.
I've limited my rear wheel to only vertical displacement, as a simplifying means.

[freebeard]

How about a 'tail that hangs on a two-point hitch with a wheely bar?

With it's own tiny pantaloon?

[aerohead]

Originally Posted by freebeard

How about a 'tail that hangs on a two-point hitch with a wheely bar?

With it's own tiny pantaloon?

1) I don't think the small diameter wheels could tolerate interstate velocities without rapid bearing failure.
2) Also, they'd have no pneumatic 'air spring' capability, no shock-absorption.
3) In a turn, without some facility for castoring, the wheels would just be dragged sideways and scrubbed as the tail came about, as there's no 'wag' built into a two-point mounting.

[freebeard]

1) intermittent contact

2)On the end of a spring steel leaf?

3)Mecanum_wheel

[kach22i]

Originally Posted by freebeard

2)On the end of a spring steel leaf?.......

Good idea, there are a few of those I saw the other day but didn't post.

https://www.supercub.org/forum/showt...3200-tailwheel






https://www.kitplanes.com/tricked-out-tailwheel/