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Mills diesel - 7/27/2004 11:41 PM   
Beagle RC Air


 

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Can anyone provide some information on the Mills and Indian Mills diesel engines? What sizes were they made in? Read in a Model Avaition magazine (Nov. 1999) that one model was .008 cubic inch. That is hard to comprehend somethig that small.

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RE: Mills diesel - 7/28/2004 4:04 AM   
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The original Mills diesels were made in England in the period 1946-1971.
Like many other early diesels, the Mills design was based on the Swiss Dyno.
Three sizes were produced - 0.75cc, 1.3cc and 2.4cc. The 0.75 and the 1.3 were revised after a few years and a number of detail changes were made throughout the years of production. The 2.4 departed from the piston-ported layout of the smaller engines and used a rear, rotary disc-valve. Not a big seller, it was dropped after a few years.
The original 0.75 and 1.3 engines are believed to have been designed by A. Hardinge, who held dubious patents on the porting system. The 2.4 and the revised .75 and 1.3 were designed by T. Wooderson, who later went on to become a celebrated flight deck design engineer with Bristol and BAe. Wooderson also designed a 0.2cc Mills, which did not proceed past prototype stage.
Following the cessation of original production, the Mills designs were copied by a number of firms, both in England and overseas. An overview follows:
India:
Aurora (Ravi Kumar) produced the .75 and 1.3 diesels, later offering larger 1.0cc and 1.5cc versions. The 2.4 was also produced. These engines were cheap and although variable, well-liked by many users.
England:
Irvine built Mills in both .75 and 1.3cc sizes. The 1.3 and the Mk2 .75 were re-designed as single ball race engines. All were superbly made and production ceased in the late 90s, following rationalisation of Irvine's engine range.
The Mills design was probably more expensive to produce than the larger glows, and although sold at a premium price, Irvine bean-counters won the day!
Attachport built a small number of 1.3cc engines around 1983 and Derek Giles produced small quantities of beautiful Mills engines in a range of sizes from 0.2 to 5.0cc over the years, and probably still does.
Les Saxby, a highly skilled watchmaker, made a small number of 0.13cc (.008 cu in) Mini-Mills, which are sought after by collectors.
Russia:
The Russians were involved with the later Doonside engines (see below), but are best known for the 0.25 and 0.4cc Mills engines produced by VA (Valentin Aljoshin). These are still very popular and really started the trend to small diesel FF and RC models.
New Zealand:
A small number of 0.75cc Mills were produced by H.P. Engineering in Lower Hutt.
Australia:
Commissioned by Ivor F (2001 ABC Eccentric of the Year and well-liked Aussie modeller), Gordon Burford and Co (Taipan) built around 1500 superb Mills .075cc replicas in 1974. Produced in Mk1 and mk2 versions, these engines were made to the highest standards and are sought after today. The writer broke the Australian Power Scramble record with a Taipan Doonside Mills, as subsequently did many others! Gordon Burford rectified several annoying problems associated with the original English engines, notably providing positive liner location and a sensible means of retaining the tank bowl. Mk2 engines were sold with a variety of colored heads and were particularly attractive. Doonsides sold for A$12.50 and were excellent value.
In later years, Ivor resurrected the Doonside Mills name and had 0.75cc Mills engines produced in Russia (not by VA). These were of varying quality, those fitted with ABC p/cyl assemblies being particularly hard to handle. Many engines were re-fitted by Ivor in an attempt to rectify the problems, but the Russian engines were not well received. They are still available today from various sources and whilst called Doonsides should not be mistaken for the Taipan-built engines.

David Owen

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RE: Mills diesel - 7/28/2004 5:29 AM   
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I am pleased to know all that. I have the Aurora Indian Mills in .75 and 1.3 cc. I had to work with them to get the initial runs. Once they had run a few times they became very tractable. I intend to put them on sport freeflights sometime. I have a 1.3 I got cheap off ****. I have not been able to get it to run. I think there is a problem with the fuel needle as everything else looks fine. Fix it up one of these days.

Jim

< Message edited by hobbsy -- 1/9/2005 4:15 PM >


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RE: Mills diesel - 7/28/2004 7:19 AM   
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Here are a few Aurora Mills engines:
First is a couple of .75's. The one on the right has the tank removed for CL use.
Second is a better shot of the one that has the tank removed.
Third is a 1.3. They are a bit rough inside, but seem to run well.
Last is a 100 (1.0). The gold head signifies an anniversary model, if I remember correctly.

Remember these are long stroke engines. I wouldn't run them with small props.

Jim, How 'bout building a Stuntwagon for a Mills?

George

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RE: Mills diesel - 7/29/2004 5:25 PM   
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Dave,

Glad to see you posting here.

Here are my small Russian VA Mills engines.

Also...a picture of the 0.25cc with carb

Now...we need to get Stan to quit saving wombats and start posting pictures of his fabuluous .09 collection here.

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RE: Mills diesel - 7/30/2004 9:34 AM   
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G'day Dan,
Thank you for the welcome. I'm very keen on diesels, as you know.
The earlier Mills image I posted was of a Taipan-built Mk2 Doonside Mills.Gordon did the gravity (permold) die for these over one Christmas break.
Ivor F went to the Taipan factory and hand-started every one of the engines before despatch. These were truly beautiful little engines and, in my opinion, quite superior to the original English Mills in every respect.
The image in this post is of the less-common original Mills 2.4cc diesel.
By the way, those little display boxes of your look really great.
regards
David Owe

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RE: Mills diesel - 1/9/2005 3:53 PM   
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Hello David

We were in contact some time ago about the PB diesels and you suggested I get in touch with someone in Canowindra about ether etc. I tried to contact you by email on this site but did not manage to get through. I was later able to work out whom you meant and have spoken to him thanks. He does have ether and IPN.

On another matter, there is a supposed Taipan Doonside Mills on **** at the moment at the URL below.



The owner originally said it is a genuine Taipan Mills but someone has told him it is not. It has the extra webs of the Taipan built engine but its needle is not brass as in the photo you showed previously. Do you know what it really is?

Thanks

Michael Leys
Cowra

PS Had a wonderful time today flying my first scale model - a Golderberg Cub with an old OS FS 70 rather over powering it. It loops on about 1/4 throttle. I could use a lighter engine but then I would need more lead!!!

< Message edited by hobbsy -- 1/9/2005 4:16 PM >


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RE: Mills diesel - 1/10/2005 2:34 PM   
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Hello Mike,
Did not see a URL as described.
regards
Dave

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RE: Mills diesel - 1/11/2005 6:53 AM   
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Are you the David Owens who put together the Mate .2 diesel kits? If so heres a picture of mine. Runs well! I'd like to see more kits and castings become available .

Max

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RE: Mills diesel - 1/12/2005 12:54 AM   
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Hello Max,
I am the same bloke who produced the Mate 2cc Diesel in kit form for engine builders such as yourself. It was quite some time ago now!
Very nice to see your engine completed. It is the first Mate I have seen with an exhaust collector and a very nice job, too. The Mate did run very well and was quite a powerful engine.
I don't have anything like it now, although Roger Schroeder in the US does some casting kits.
with best regards
David Owen

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RE: Mills diesel - 1/12/2005 12:32 PM   
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Not sure if you all know but Irvine have just released a final batch of limited edition Mills 0.75 and 1.3 engines, black crankcase with gold heads. These really look the part and cost £200 (which is around $400 US). Just which I had some spare cash to invest - too busy keeping the pennies for a new 14ZAP!

All the best

Kevin

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RE: Mills diesel - 1/21/2005 11:12 PM   
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I´ll try to upload a photo of 3 Mills replica engines built by Derek Giles of England, whom David Owen mentioned in a previous posting.
I hope it works. The engines are remarkably well made, superb workmanship.
Left to right:

Mills 1.3 MkI series I......Mills .75 MkI......Half sized Mills .75 MkI

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RE: Mills diesel - 2/5/2005 10:10 PM   
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Another photo of Mills replicas - the superb Taipan-made Doonside Mills .75 MkII
Note the shiny crankcases with the characteristic 4 webs added to the front.
Beautiful workmanship.

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RE: Mills diesel - 2/5/2005 11:26 PM   
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Couldn't resist! I posted these before, but this is my US Mills Replica

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RE: Mills diesel - 2/6/2005 3:19 AM   
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I believe JUST ENGINES UK has some of the Irvine mills left and quite sure they are less than 200GBP check the site for price and if any left
I just "surfed to the JE site" and it appears the .75 mills are sold out but they have the 1.3 listed at 103GBP
Jack looks right on price 103 GBPs -15% VAT x 1.9 $ conversion $10 shipping is $178 as of today

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RE: Mills diesel - 2/6/2005 3:57 AM   
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Irvine Mills 1.3 cc $178.12 US December 2004 from Jolly Olde England. A friend placed an order and asked if I would be interested in a couple of 1.3 engines. I said yes, knowing they would not be cheap. Got over 50 runs on one engine I am setting up for A Texaco. Easy to start even in 30+ degree F. temapture here in Northern Illinois.

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RE: Mills diesel - 2/21/2005 1:04 AM   
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Dan,

Can you tell me where I can buy one of those Russian engines? That mini-MILLS .75 looks like something I may want.

What has been your experience with it?

I'n new to Diesels and I need something simple, preferably cheap.

Ed Toner
captained@comcast.net

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RE: Mills diesel - 2/23/2005 5:54 PM   
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I think you're looking for the russian Mills at the bottom of this page :
http://www.freeflightmodels.com/pages/carlsonengines/old_timer_and_sport_engines.htm

Happy flying.

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RE: Mills diesel - 2/23/2005 8:38 PM   
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JMP - Thanks, but I still can't find how to order.

Can you help?

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RE: Mills diesel - 2/23/2005 10:16 PM   
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Thanks again, but still no place to "click" fot "ORDER", or "Buy"

Ed

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RE: Mills diesel - 2/24/2005 12:27 PM   
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I clicked on : "back to engine index" at the bottom of the page,
then again on : "back to home page"
then found a link to : "order form" in the line at the top of the page

Happy flying.

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RE: Mills diesel - 2/24/2005 1:21 PM   
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Hi All
The £200 I mentioned in a posting above was for a boxed pair of the black/gold limited edition Irvines - a 0.75 and a 1.3. There are available individually for around £100 (US$190) a piece; if you are lucky you might still find some.

Cheers

Kevin

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RE: Mills diesel - 2/24/2005 3:35 PM   
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Thanks, Kevin.

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RE: Mills diesel - 2/24/2005 9:01 PM   
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Ed,
Phone orders work best for Carlson. 602-863-1684.

Two e-mails are listed in his paper catalog: 102052.3234@compuserve.com or Carlsonengines@juno.com

Good luck,
George

Edit:Typo

< Message edited by gcb -- 2/24/2005 9:06 PM >


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RE: Mills diesel - 2/24/2005 9:10 PM   
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Thanks George!

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