Corris 7 steams!

wookey · Post by **wookey** » Wed Apr 20, 2005 9:43 pm

hehe, ., i'm only a year behind you in that case
don't worry chris, i'll soon be a gibbering wreck too

Ah, i like traction angines really

lovely things,
mind you, i've never seen one break the Ton, that'd be worth seeing lol, a Mallard of the road

dcduncan · Post by **dcduncan** » Thu Apr 21, 2005 7:35 am

A traction engine capable of that sort of speed would need to be roughly the size and weight of an A4 possibly bigger because of the increased friction when running on a road. It would be one hell of a beast, and impossible to stop or turn

But what a dream

David

wookey · Post by **wookey** » Thu Apr 21, 2005 12:52 pm

hehe, yea *grin*

i'd be in trouble living where i do though, fantastic on the M5, but i'd soon get it stuck down a country lane

MuzTrem · Post by **MuzTrem** » Thu Apr 21, 2005 4:08 pm

Great to see this engine complete. I'll have to get up to Wales sometime and go and see it! (Also wouln't it be great for it to meet up with No 4 at some point?)

dcduncan · Post by **dcduncan** » Thu Apr 21, 2005 5:58 pm

MuzTrem wrote:Great to see this engine complete. I'll have to get up to Wales sometime and go and see it! (Also wouln't it be great for it to meet up with No 4 at some point?)

I wouldn't be surprised if that did happen, living as they will do just around the corner as it were.

David

wookey · Post by **wookey** » Thu Apr 21, 2005 6:01 pm

could make for a rather nice 'before and after' pose

pitleyfalley · Post by **pitleyfalley** » Thu Apr 21, 2005 11:07 pm

Hmmm yes, wouldnt mind having a go on the shovel on that. No.4 is the only TR engine ive not had a go on

.

As for speeds on traction engines, the late and great Mr.Dibnah had Betsy the roller up to about 40mph. They do steer, you just have to do it very fast.

. We thought it was bad enough doing about 6mph on the road over new year on ours! By comparison most rollers are designed to do about 4mph, and the traction engine we're rebuilding should hopefully do 12 or 13mph.

Chris

wookey · Post by **wookey** » Thu Apr 21, 2005 11:28 pm

hehe ah dont worry chris, we're just being a bit silly as regards traction engines

40 mph though? thats pretty darn impressive, what on earth kind of roller was Betsy?

hehe being a bit drunk tonight i'm not scared to suggest it, i've always wondered what would happen if you tried to make a road engine in a locomotive format, i'e direct drive, it would be difficult especially in regards to steering but surely it would lead to faster more powerful engines, even if they did collapse any bridge they crossed

hehe anyway don't think we're taking the mick, i think its a great interest to have

i always enjoy the road steam engines at the country shows we have here,
i was reading some pages of historic engines too, and apparently a specially built Stanley steamer holds the current steam car speed record of 127mph. which is pretty damn good!

pitleyfalley · Post by **pitleyfalley** » Fri Apr 22, 2005 6:08 pm

Heya Dan,

Dont worry, no offence taken at all

. Fred's Roller was an Aveling and Porter R10, same as ours, it got to 40mph, as it quite simply got out of control! Not a common occurance I can assure you.

Direct drive on a traction engine... That would involve two rather large cylinders mounted on the boiler sides, with a con rod down to a cam on the rear wheels... One turn of the wheel per cylinder stroke! So with a 5ft dia wheel...

Circumference = PI * dia
Circumference = 3.141 * 5

Cicumference = 15.7ft per stroke = traction engine can do up to say 300rpm so per min thats:

15ft * 300 strokes = 4500 ft a min = 0.8522727272727273 mps

or 51 mph approximatley

Thats using a conservative figure for the strokes per min of the traction engine, in practice I could invisage it being a lot more.. maybe nearer 600 rpm which gives 102mph.

You then consider the issue of steering. Some form of power assist steering would be required at that speed, thus a simple system using bevel gears could be implemented. Engaging a clutch one way or another to have a shaft driven steering system... The faster the engine goes and the shaft goes up and down, the faster the steering works!

Hey presto a traction engine which can be steered and does 100mph.

On the downside, the boiler would have to be increased in size to account for the bigger cylinders required to move such a large wheel directly, hence gearing on a normal traction engine.... Thinking about it, a 5ft dia wheel would make it somwhat similar to say a large 1870's single wheeler, similar to Sterlings maybe.

But, with the increased speed, and the steeper hills which are encountered on the roads (up to say a 1:6) the whole lot would be rather lightfooted.... maybe some sort of sanding device to aid adhesion should be fitted, or simply channels coming out from the ashpan, dropping cinders and ash in front of the wheels for grip.

Hmmm.. personally I think ill stick with what we've got...

Chris

wookey · Post by **wookey** » Fri Apr 22, 2005 7:01 pm

hehe
oh i don't know, that sounds rather wonderfully monsterous to me hehe

now all i need to do is get finacial backing..... lol

pitleyfalley · Post by **pitleyfalley** » Fri Apr 22, 2005 8:33 pm

Ive got a gas axe, should be able to make a good start with that ..

wookey · Post by **wookey** » Fri Apr 22, 2005 9:37 pm

hehe, i reckon

JonPotter · Post by **JonPotter** » Sat Apr 23, 2005 11:09 am

I reckon that the most likely meet will be of No. 3 and No. 7 - after all who wants 2 Tatoo's? No. 7 may go to the Talyllyn - but I don't think No. 4 will go to corris

brocky · Post by **brocky** » Sat Apr 23, 2005 12:18 pm

JonPotter wrote: No. 7 may go to the Talyllyn - but I don't think No. 4 will go to corris

Again

pitleyfalley · Post by **pitleyfalley** » Sat Apr 23, 2005 3:34 pm

Dont see why 4 shouldnt go to Corris, after all 3, the corris coach and van 6 went the other year, no reason for 4 not to, once there's another service engine in Tywyn, bit tight at the moment with 1 and 6 out.

If anything I cant see Corris sending they're brand new, only working steam enigne for a 14 mile round trip thrashing up the TR....

Chris