Home

   Log in or Register



Insurance Quotes
forums Campsite Search Comp Directory tips virtual brochure Profile
Tent and Awning Reviews Competitions Caravans and Motorhomes For Sale Shopping Diary Advent Calendar

Advertisement

Message Forums

Welcome Guest Register Login Search The Forum Posts Since Last Visit
 Reception - All Forums
  Caravans and Caravanning
Share   Post on X / Twitter  Share on Facebook  Email  Printer Friendly Version Print
Subject Topic: Would like to get Fuel saving? Post Reply Post New Topic
19/4/2021 at 12:35pm
 Location: 
 Outfit: None Entered
View Atif's Profile View Profile   Reply to Atif Reply   Quote Atif Quote  
Joined: 19/4/2021

Standard Member
Standard Member

Forum Posts:   1

Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

Hello,

I am Atif, a PhD student at the University of Huddersfield. I am researching in the field of the aerodynamics of horse trailers and caravans. I have recently researched a device that shows a significant reduction in the drag force and fuel consumption. (Please see attached pictures)

This device will attach at the front of the caravan/trailer and will reduce the turbulent flow between the car and caravan. Rather than making shapes streamlined and compromising on the internal living space, the addition of this device will bring better fuel efficiency without streamlining the caravan shape. However, I have doubts about the regulation if there are any restrictions applied to this device. As you can see from the pictures, the device reduces the gap between car and caravan. Although the gap is still enough to allow free manoeuvre action of the towing car.
However, I have read online that there is a requirement of a minimum gap between the car and caravan, and someone quoted this to be 900mm. I was wondering if anyone here who had experience in this field had knowledge about this limit. Is it true to your knowledge? (I have seen in my last post that there are many experts with years of experience in the Caravan manufacturing and testing industry on this forum)

My first point of discussion is:
1. Is there a limit for the minimum gap length between the car and caravan or the gap should be long enough so that the vehicle does not interfere with the caravan or this device while manoeuvring?

2. I would like to get your feedback on this device. Here are some outstanding benefits of this device:

Better fuel efficiency and longer journeys for electric cars.

Reduced side wind loads and improves the stability of the caravan

Provides front cover to the caravan

What are your major concerns about this device?
What kind of fixing mechanism would you prefer?

Permanently fixed

Detachable with mounting brackets attached to the caravan permanently.


Further detail of this device can be found on this link: http://aerotrailers.co.uk/aerotrek
I am working on the animation of this device and will add it to this link very soon. This link is not for marketing purposes, but it is a part of my PhD work to evaluate market potential for this device.
If you visit this link and, you are interested to reduce fuel consumption and you want to buy this device or want to hear more about this or any future development, please click on the buy now button and leave your email.
I would really appreciate your extra time and efforts if you can fill this quick questionnaire as well. This will provide me with some evidence about the potential customer and design feedback for my thesis. here is the link and it would not take more than 2 minutes:

https://forms.gle/wRrScqbNUBEBH2KV7


I am really looking forward to having a great discussion with you. If you have any questions, please drop them in the comments section. I will try to answer them.

Thanks
Atif


via mobile 19/4/2021 at 2:51pm
 Location: North Essex
 Outfit: Caravelair Alba 400
View billy's Profile View Profile   Reply to billy Reply   Quote billy Quote  
Joined: 19/4/2002

Diamond Member
Diamond Member

Forum Posts:   4364

Site Reviews Total: 39
Site Reviews 2024: 9  
Site Reviews 2023: 6  
Site Reviews 2022: 7  
Site Reviews 2021: 10 
Site Reviews 2020: 7  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 121
Site Nights 2023: 45
Site Nights 2022: 91
Site Nights 2021: 112
Site Nights 2020: 84
Site Nights 2019: 0
Site Nights 2018: 0

Sorry mate but it won’t work unless gap is very small as in close coupled artic truck & trailer.

-------------
Every day should be a holiday!


Discounted Insurance Quotes for UKCampsite.co.uk visitors! Up to 12.5% off!
UKCampsite.co.uk users are rewarded with up to 12.5% off Caravan Guard touring caravan insurance, folding camper and trailer tent insurance, and 5% off motorhome and campervan insurance. Static caravan insurance is also available. Get an online quote now

via mobile 19/4/2021 at 5:42pm
 Location: Ayrshire
 Outfit: Auto-Sleeper MHs
View Fiona W's Profile View Profile   Reply to Fiona W Reply   Quote Fiona W Quote  
Joined: 10/4/2007

Diamond Member
Diamond Member

Forum Posts:   5144
Tent Reviews:   1

Site Reviews Total: 234
Site Reviews 2024: 18 
Site Reviews 2023: 8  
Site Reviews 2022: 12 
Site Reviews 2021: 10 
Site Reviews 2020: 4  
Site Reviews 2019: 9  
Site Reviews 2018: 18 
Site Nights 2024: 37
Site Nights 2023: 25
Site Nights 2022: 32
Site Nights 2021: 25
Site Nights 2020: 20
Site Nights 2019: 28
Site Nights 2018: 30

I don’t have a caravan but I’d wonder what to do with the deflector when I was on site. It has to come off the front window, or else it blocks views & light, and access to the gas locker. It looks too big to go under the caravan, especially with the exaggerated curve. It would get in the way in the awning.
You also need to be far more specific about fuel savings: yes, a more aerodynamic shape but possibly offset by a now heavier caravan.
I’ll leave the legal distances to the caravan experts but I’d have hoped DVLA had the official rules about towing like it does about “motor caravans”.

-------------
2024 = 20 sites / 41 nights. 2023 = 9/23. 2022 = 13/35. 2021 = 11/29. 2020 = 4/20. 2019 = 13/35. 2018 = 20/33. 2017 = 10/22. 2016 = 19/33. 2015 = 15 sites / 27 nights. Didn't count 1976 to 2014.


via mobile 19/4/2021 at 5:57pm
 Location: NE Scotland
 Outfit: Bailey Phoenix + CRV
View oxter's Profile View Profile   Reply to oxter Reply   Quote oxter Quote  
Joined: 02/10/2003

Diamond Member
Diamond Member

Forum Posts:   3894

Site Reviews Total: 83
Site Reviews 2024: 3  
Site Reviews 2023: 2  
Site Reviews 2022: 7  
Site Reviews 2021: 2  
Site Reviews 2020: 2  
Site Reviews 2019: 6  
Site Reviews 2018: 8  
Site Nights 2024: 14
Site Nights 2023: 14
Site Nights 2022: 47
Site Nights 2021: 14
Site Nights 2020: 11
Site Nights 2019: 36
Site Nights 2018: 8

I think I’d need to be covering a huge mileage towing to justify one of these.
It would be better to improve the aerodynamics of the outfit or caravan itself.

There’s the inconvenience of storing the device and fitting it, dismounting it to consider. A two person task? Maybe 3?

Nice idea but not very practical.


-------------
playing at tinkies


19/4/2021 at 7:25pm
 Location: East Herts
 Outfit: 1992 Elddis Wisp 450CT + X Trail
View Colin21's Profile View Profile   Reply to Colin21 Reply   Quote Colin21 Quote  
Joined: 05/11/2013

Diamond Member
Diamond Member

Forum Posts:   6270

Site Reviews Total: 18
Site Reviews 2024: 1  
Site Reviews 2023: 1  
Site Reviews 2022: 2  
Site Reviews 2021: 2  
Site Reviews 2020: 0  
Site Reviews 2019: 2  
Site Reviews 2018: 3  
Site Nights 2024: 7
Site Nights 2023: 8
Site Nights 2022: 12
Site Nights 2021: 18
Site Nights 2020: 0
Site Nights 2019: 21
Site Nights 2018: 18

I agree with all that has been said so far, and I would be curious about just how much fuel this would save. I have memories of those wind deflectors that people used to mount on the roof of their cars that were supposed to achieve the same end, and they didn't really make much difference, if any.

I can't imagine this device making any more difference than those old ones did, and cost would be a big factor. Unless the device cost just a few pounds, most people would probably take years to recover the outlay.


-------------
Best Regards,
Colin


Advertisement



19/4/2021 at 7:43pm
 Location: West country
 Outfit: Mondeo
View navver's Profile View Profile   Reply to navver Reply   Quote navver Quote  
Joined: 23/8/2008

Diamond Member
Diamond Member

Forum Posts:   4663

Site Reviews Total: 1
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

I think you are right about wind resistance of caravans massively increasing fuel consumption, but I feel a folding caravan is the answer. Top half of caravan is an empty box full of air. This for me would give a much larger fuel saving than a deflector.

As an example, towing a folding camper weighing 500kg and comprising a 6 foot square box 4 feet high gave 43 mpg. A small caravan with the same car gives 30 mpg.

Air flow over the car roof seems to be OK as most modern caravans now have a streamlined front panel. Problem seems to be the low pressure behind the car sucking air down and in behind the car causing massive turbulence low down. This means the space between car and caravan needs filling on roof and sides which I'm not sure is practically possible.

There was a device some 30 years ago which has been taken up on articulated lorries. It's a deflector on the roof of the lorry cab deflecting air up and over the trailer.



19/4/2021 at 8:04pm
 Location: Stafford
 Outfit: Pennine Pullman
View Old Bob's Profile View Profile   Reply to Old Bob Reply   Quote Old Bob Quote  
Joined: 06/10/2004

Standard Member
Standard Member

Forum Posts:   31

Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

Significant fuel saving can be achieved when towing on motorways by picking the appropriate high sided artic and sitting in behind it. You do not have to get to close you can remain a reasonable safe distance and still get the benefit of a slipstream.


via mobile 19/4/2021 at 8:06pm
 Location: NE Scotland
 Outfit: Bailey Phoenix + CRV
View oxter's Profile View Profile   Reply to oxter Reply   Quote oxter Quote  
Joined: 02/10/2003

Diamond Member
Diamond Member

Forum Posts:   3894

Site Reviews Total: 83
Site Reviews 2024: 3  
Site Reviews 2023: 2  
Site Reviews 2022: 7  
Site Reviews 2021: 2  
Site Reviews 2020: 2  
Site Reviews 2019: 6  
Site Reviews 2018: 8  
Site Nights 2024: 14
Site Nights 2023: 14
Site Nights 2022: 47
Site Nights 2021: 14
Site Nights 2020: 11
Site Nights 2019: 36
Site Nights 2018: 8

Re my previous post Atif. I have completed your survey.

Eddie

-------------
playing at tinkies


20/4/2021 at 9:27am
 Location: Worcestershire
 Outfit: Buccaneer Cruiser
View iank01's Profile View Profile   Reply to iank01 Reply   Quote iank01 Quote  
Joined: 30/6/2004

Diamond Member
Diamond Member

Forum Posts:   4061

Site Reviews Total: 5
Site Reviews 2024: 1  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 1  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 5
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 10
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

Supposed to be fuel saving, but then you have the weight of the device. Not sure how it will reduce side wind pressure as the side of the caravan is like a giant sail? No mention how it is going to be attached to the caravan as awning rails are not built to take that sort of pressure.


29/4/2021 at 9:36pm
 Location: West Yorkshire
 Outfit: Bessacarr Cameo 625 2011
View chrisn7's Profile View Profile   Reply to chrisn7 Reply   Quote chrisn7 Quote  
Joined: 10/9/2005

Platinum Member
Platinum Member

Forum Posts:   948

Site Reviews Total: 0
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 0  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 0
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

Its excellent that this is being researched. It is important to understand that the move from being pitched and fully set up on site, to being ready to depart does require quite a lot of operations. Attaching this device is yet another task, and personally I would rather see a change to the design of the bodyshell.

Any accessory has to have a home on site or back st home, so storage is a significant factor.


Advertisement



29/4/2021 at 10:00pm
 Location: SHEFFIELD
 Outfit: Coachman laser RangeRover Sport4.4
View kevin-t's Profile View Profile   Reply to kevin-t Reply   Quote kevin-t Quote  
Joined: 07/9/2010

Gold Member
Gold Member

Forum Posts:   364

Site Reviews Total: 3
Site Reviews 2024: 0  
Site Reviews 2023: 0  
Site Reviews 2022: 0  
Site Reviews 2021: 2  
Site Reviews 2020: 0  
Site Reviews 2019: 0  
Site Reviews 2018: 0  
Site Nights 2024: 0
Site Nights 2023: 0
Site Nights 2022: 0
Site Nights 2021: 21
Site Nights 2020: 0
Site Nights 2019: 0
Site Nights 2018: 0

My two penneth, and it's only my opinion. Which we all have one!
You are totally wasting your time! You only have to look at the new European caravan manufacturers caravans to see they are all going aerodynamic in shape..Not be long before the uk van makers will follow suit.
You clearly are a very clever person. Put this nonsense aside and design some sort of portable wind turbine for the caravans. Press of a switch, lifts the wind turbine, telescopically, electrically, hay presto free power.

As I said, Just my opinion 👍


29/4/2021 at 10:34pm
 Location: East Herts
 Outfit: 1992 Elddis Wisp 450CT + X Trail
View Colin21's Profile View Profile   Reply to Colin21 Reply   Quote Colin21 Quote  
Joined: 05/11/2013

Diamond Member
Diamond Member

Forum Posts:   6270

Site Reviews Total: 18
Site Reviews 2024: 1  
Site Reviews 2023: 1  
Site Reviews 2022: 2  
Site Reviews 2021: 2  
Site Reviews 2020: 0  
Site Reviews 2019: 2  
Site Reviews 2018: 3  
Site Nights 2024: 7
Site Nights 2023: 8
Site Nights 2022: 12
Site Nights 2021: 18
Site Nights 2020: 0
Site Nights 2019: 21
Site Nights 2018: 18

Quote: Originally posted by chrisn7 on 29/4/2021
Its excellent that this is being researched. It is important to understand that the move from being pitched and fully set up on site, to being ready to depart does require quite a lot of operations. Attaching this device is yet another task, and personally I would rather see a change to the design of the bodyshell.

Any accessory has to have a home on site or back st home, so storage is a significant factor.



I agree with all of that but additionally the O/P mentioned fuel saving, which implies money saving. Just how much would this device cost and how much fuel would it save? Would it be cost-effective? Unless the fuel saving was very significant, which I seriously doubt, and/or the cost of the device was next to nothing, it could take decades to pay for itself.


-------------
Best Regards,
Colin


via mobile 30/4/2021 at 9:21am
 Location: Ayrshire
 Outfit: Auto-Sleeper MHs
View Fiona W's Profile View Profile   Reply to Fiona W Reply   Quote Fiona W Quote  
Joined: 10/4/2007

Diamond Member
Diamond Member

Forum Posts:   5144
Tent Reviews:   1

Site Reviews Total: 234
Site Reviews 2024: 18 
Site Reviews 2023: 8  
Site Reviews 2022: 12 
Site Reviews 2021: 10 
Site Reviews 2020: 4  
Site Reviews 2019: 9  
Site Reviews 2018: 18 
Site Nights 2024: 37
Site Nights 2023: 25
Site Nights 2022: 32
Site Nights 2021: 25
Site Nights 2020: 20
Site Nights 2019: 28
Site Nights 2018: 30

I think the OP is busy doing his PhD; not come back since their first post with all those questions 10 days ago. Hopefully we’ll get a response to our points sometime.

-------------
2024 = 20 sites / 41 nights. 2023 = 9/23. 2022 = 13/35. 2021 = 11/29. 2020 = 4/20. 2019 = 13/35. 2018 = 20/33. 2017 = 10/22. 2016 = 19/33. 2015 = 15 sites / 27 nights. Didn't count 1976 to 2014.



In order to post a reply you will need to register, or if already registered please log in here

Prev       Next
Quick Links - All Forums - Caravans and Caravanning - Top of Page

Printer Friendly Version Printable version      Share   Post on X / Twitter  Share on Facebook  Email


Latest News, Discounts and Competitions  see all...














9768 Visitors online !

Free UKCampsite.co.uk Window Sticker  -  Recommend to Friend  -  Add a Missing Campsite

[Message Forums]  [Caravan Sites & Camping]  [Company Listings]  [Features / Advice]  [Virtual Brochure]  [Shop!]
[Reception]  [Competitions]  [Caravans & Motorhomes For Sale]  [Event Diary]  [Contact Us]  [Tent Reviews



Please note we are not responsible for the content of external sites & any reviews represent the author's personal view only. Please report any error here. You may view our privacy and cookie policy and terms and conditions here. All copyrights & other intellectual property rights in the design and content of this web site are reserved to the UKCampsite.co.uk © 1999 - 2024


Advertisement


Advertisement


UKCampsite.co.uk
2024 Advent Calendar


Advent Calendar

24 Daily Prizes PLUS a Christmas Day Star Prize worth £999

Request a Reminder