Oddball engines and prototypes

[WilDun]

Cute
I'd bet the majority of model aircraft engines you've ever had anything to do with would stupid wee cox engines, maybe if you were lucky 1 or 2 OS engines & possibly a couple DC engines most likely nothing bigger than a Merlin or Sabre
Bet you wouldn't even know how many different model aircraft engines were built by kiwis prior to the 1970s

To see how clued up you are on these do tell what the difference is between an O&R 60 & Purple Head O&R 60 you probably haven't even got a clue what O & R stands for
Or an easy one what a Mills .75 was copied off
Or what a Taipan is & what it's capacity was
Or what S.A.M stands for

Oh well, I'm sure that's important to you and I guess you are most probably absolutely correct - I do fully understand where you are coming from and it's good to know these facts.
But please don't let it become a case of mine's bigger than yours, - no it's not. - yes it is - no it's not, etc etc .......... ok?

BTW, I maybe know the answers to about one third of your questions, and would be interested to hear the others as well, but I could cheat and look them up of course!

[T.W.R]

Oh well, I'm sure that's important and I guess you are most probably absolutely correct,
As I suspected, it's a case of mine's bigger than yours, - no it's not. - yes it is - no it's not, etc etc .......... bye!

well you & the other one were questioning what you'd been told just going on a picture without actually having seen, heard, or handled in the flesh then & again now topping it off with sarcasm.
If you can't handle getting called out on what you actually know about the items in question it's best to keep your trap shut and accept what you've been told.
This coming from someone who has over 40yrs of being pretty close to the actual hobby, having also been a member of 2 ChCh model aero clubs, been on a very intimate relationship with who was the owner of the largest collection of model aircraft engines in NZ and a internationally known & respected aero modeller.

[ken seeber]

I've got a deja vu coming on..

[WilDun]

I must say I actually do understand your reasoning for saying all this - I'm sorry but life becomes more restricted as we get older and the things we used to do become only memories (as they do for me and it's not funny), but please keep what you say and how you say it in check!

We, on the forum have been here before ........ so get a life and be a good boy ..... bye.

[WilDun]

Quick, a distraction!
Rotary valves and oil splash bottom ends for 2 smokes, plus a few other interesting bits...
http://www.motorsportmagazine.com/ar...ke-car-engines

Guy,
Sorry for the "Old Fella" spat - hopefully it'll blow over - I mean, why did they ever do away with steam anyway and try to introduce these new fangled two strokes in their place? - It'll never work! .............and they still haven't been perfected even to this day! That's why this forum exists, sort of the last hope for sorting out the two stroke engine!

Scott was a genius in his day, but even geniuses sometimes don't make it!

[Pursang]

Guy,
Sorry for the "Old Fella" spat - hopefully it'll blow over - I mean, why did they ever do away with steam anyway and try to introduce these new fangled two strokes in their place? - It'll never work! .............and they still haven't been perfected even to this day! facepalm: That's why this forum exists, sort of the last hope for sorting out the two stroke engine!

Scott was a genius in his day, but even geniuses sometimes don't make it!

Thou shalt not take the name of the lord thy Scott in vain"
(Inventor of the RD250LC, in 1908)

Here was his opinion on the future of two-stroke engines..
...(in 1914).

Speaking of 1914 here is his TT race engine for that year. A configuration that is still current, 100 years later.


The rotary valve, driven by lever arm, previously gear train(1913) & before that chain(1912) controlled inlet flow to the crankcase or direct to the transfers.

The twin plug head allowed High compression in 2 compact chambers, even with the deflector piston.

Truly a Giant to attempt to stand on the shoulders of.

cheers, Daryl.

Sorry accreditation Due: Info from http://www.scotttechnicalities.com.au/ lots of good stuff.

[WilDun]

..................The rotary valve, driven by lever arm, previously gear train(1913) & before that chain(1912) controlled inlet flow to the crankcase or direct to the transfers.
cheers, Daryl.

Daryl, please forgive me for being an absolute nit picking asshole, but ........ oscillating! - not a rotary!

[Pursang]

Daryl, please forgive me for being an absolute nit picking asshole, but ........ oscillating! - not a rotary!

You are Forgiven..you absolute nit picking asshole!

Chain & gear driven ones were rotary, and this one is an ocelot

Cheers, Daryl.

[Lightbulb]

Cute
I'd bet the majority of model aircraft engines you've ever had anything to do with would stupid wee cox engines, maybe if you were lucky 1 or 2 OS engines & possibly a couple DC engines most likely nothing bigger than a Merlin or Sabre
Bet you wouldn't even know how many different model aircraft engines were built by kiwis prior to the 1970s

To see how clued up you are on these do tell what the difference is between an O&R 60 & Purple Head O&R 60 you probably haven't even got a clue what O & R stands for
Or an easy one what a Mills .75 was copied off
Or what a Taipan is & what it's capacity was
Or what S.A.M stands for

I know who Olsen and Rice are, but not the differences in their engines, way before my time.
Like wise with the Mills series of engines.
I did know Gordon Burford through the phone only and spoke with him numerous times during the early 1980's until the late 90's was my last call to him. Never did get to meet him in person, but he did share alot of his ideas with me.
No idea about S.A.M,
But I do know Harvey Westland, who made engines of his own design and had a performance ahead of it's time . I stayed with Harvey when he used to live on his sheep farm out of ChristChurch. I have one of Harvey's 29 speed engines and pipes, and a spare case that needs refurbishing, and of course a model needs to be made for the 29 speed engine to run it yet again.
Neil Lickfold

[husaberg]

I've got a deja vu coming on..

. .

[T.W.R]

I know who Olsen and Rice are, but not the differences in their engines, way before my time.
Like wise with the Mills series of engines.
I did know Gordon Burford through the phone only and spoke with him numerous times during the early 1980's until the late 90's was my last call to him. Never did get to meet him in person, but he did share alot of his ideas with me.
No idea about S.A.M,
But I do know Harvey Westland, who made engines of his own design and had a performance ahead of it's time . I stayed with Harvey when he used to live on his sheep farm out of ChristChurch. I have one of Harvey's 29 speed engines and pipes, and a spare case that needs refurbishing, and of course a model needs to be made for the 29 speed engine to run it yet again.
Neil Lickfold

S.A.M is the Society of Antique Modellers

Harvey Westland was a good mate of the old man's. if you know him you'd have heard or met Martin Langlands, Bill Rouse, Ian Henry to name a few
What sort of model you wanting to throw the motor into? still got a shitload of plans here covering everything from R/C, control line, Stunt, A & 1/2A and a pile of Vintage free flight, gliders, indoor minatures for CO2 & jetX motors, rubber free flight, duration etc

The Mills is a Doonside copy

The Purple Head O&R 60 had a raised piston crown & a slightly deeper dished head....basically the performance spec version and pretty rare

Still got a handful of the old mans engines but the majority got swallowed up by guys in the US

[WilDun]

You are Forgiven..you absolute nit picking asshole!

Chain & gear driven ones were rotary, and this one is an ocelot

Cheers, Daryl.

You sure know how to make a guy feel good about himself ..... well, say it ...... "Oscillating"

[WilDun]

S.A.M is the Society of Antique Modellers

The Mills is a Doonside copy

You perhaps need to know that the person you referred to as "the other one" earlier, (Frits Overmars) is ( I believe) responsible for the design of many European competition model aircraft engines and involved with many other two stroke projects.

The Mills is not a Doonside copy - but the Doonside is a (rather good) copy of the Mills and made in Aus.

The Ohlsson & Rice engines have been around for a very long time and most people my age would have known about them - all off the top of my head and no bull - I mean no Google!

Welcome to our thread (after a stormy debut)!

[Lightbulb]

I will be looking for a 29 Control line speed model. But with 2 lines not monoline.
I have heard of a Doonside Mills, and thought the Doonside was the copy. I did not realise that the Doonside was the original engine.
Neil

[T.W.R]

You perhaps need to know that the person you referred to as "the other one" earlier, (Frits Overmars) is ( I believe) responsible for the design of many European competition model aircraft engines and involved with many other two stroke projects.

The Mills is not a Doonside copy - but the Doonside is a (rather good) copy of the Mills and made in Aus.

The Ohlsson & Rice engines have been around for a very long time and most people my age would have known about them - all off the top of my head.

Welcome to our thread (after a stormy debut)!

I don't really care who Fritz is, he questioned what he saw & was told it was mock by someone who had actually seen the engine in the flesh etc yet still tried questioning it.

Wrong! the Mills .75 IS a Doonside copy....I could show you written proof if my scanner was working.

Of course O&R have been around a very long time with a hell of a lot of other brands of engine but they're one of the more respected

Ha your thread Glenn was the original poster so if any one can lay claim to owning this thread it's Husaberg...so dial back the arrogance