Hunslet 102 Posted January 6, 2014 Share Posted January 6, 2014 Top job on the parcel van Kieran,just like the real thing Quote Link to comment Share on other sites More sharing options...
David Holman Posted January 6, 2014 Share Posted January 6, 2014 A very fine piece of work indeed. Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 21, 2014 Author Share Posted January 21, 2014 Testing the traction of a cut down Class 55 chassis. I cut down two Hornby Class 55 chassis to fit Silver Fox A Class bodies. They will be numbered A7 & 045. The "weight" in Class 55 is provided by thin strips of steel and I used all of them in the A Class in the hope of getting good traction especially on my layouts very sever inclines. Enniscorthyman in Tips & Tricks suggested replacing the Hornby traction tyres with Marklin ones. I decided to carry out a test using one chassis with Marklin tyres and the other retaining the Hornby ones. I videoed the tests and you can see for yourself the results. On reflection I should have given the Marklin tyres a longer time to bed in. I can make it work but the amount of weights required on the front bogie causes me concern. I would welcome any suggestions on how to address this problem. Quote Link to comment Share on other sites More sharing options...
BosKonay Posted January 21, 2014 Share Posted January 21, 2014 I've added weight and applied Bullfrog Snot to my A's. It's not perfect but it helps. Maybe some day St. Paddy will bring us an all wheel pickup all wheel drive diecast chassis'd A class Quote Link to comment Share on other sites More sharing options...
Train model Posted January 21, 2014 Share Posted January 21, 2014 Beautiful work it's only a suggestion but I got an a class lately with a roco chassis not sure what model has flywheel motor the only way to go Quote Link to comment Share on other sites More sharing options...
Glenderg Posted January 21, 2014 Share Posted January 21, 2014 I had thought about perhaps using both powere bogies, but you'd have to add pickups and its an expensive option. You could try both chassis, for pig iron, to see if the additional tractive effort would, in theory, help. Would spreading the additional weight by attachint to the underside of the body roof help spread the load more evenly rather than attaching it directly to the bogie? Quote Link to comment Share on other sites More sharing options...
enniscorthyman Posted January 21, 2014 Share Posted January 21, 2014 I put the new traction tires over the Hornby ones and tested them on the incline of the deeps layout with 12 ballast and two plough Vans and found she got up ok but did slow a bit.However the incline on the deeps is not as steep as on yours Kirley.I will try and post video later. Quote Link to comment Share on other sites More sharing options...
irishthump Posted January 21, 2014 Share Posted January 21, 2014 Would spreading the additional weight by attachint to the underside of the body roof help spread the load more evenly rather than attaching it directly to the bogie? I read that the weight should always be over the centre of the chassis for maximum adhesion to the rails even when only one bogie is powered. Quote Link to comment Share on other sites More sharing options...
enniscorthyman Posted January 21, 2014 Share Posted January 21, 2014 Sorry I cant seem to show a39 on video as photobucket wont load it from my i pod.Will try it via youtube tomorrow. Quote Link to comment Share on other sites More sharing options...
jhb171achill Posted January 22, 2014 Share Posted January 22, 2014 Ah, Enniscorthyman, this means you'll have to come back to Downpatrick to film it again! Quote Link to comment Share on other sites More sharing options...
enniscorthyman Posted January 22, 2014 Share Posted January 22, 2014 Ah, Enniscorthyman, this means you'll have to come back to Downpatrick to film it again! I would love to see her again,and I am trying to see If I can get up to DownPatrick at Easter. Quote Link to comment Share on other sites More sharing options...
enniscorthyman Posted January 22, 2014 Share Posted January 22, 2014 A bit of video of A39 with new traction tires. [video=youtube;bwSUbrgIj-k] Quote Link to comment Share on other sites More sharing options...
jhb171achill Posted January 22, 2014 Share Posted January 22, 2014 That's a lovely looking layout, Enniscorthyman. Quote Link to comment Share on other sites More sharing options...
enniscorthyman Posted January 22, 2014 Share Posted January 22, 2014 That's a lovely looking layout, Enniscorthyman. It's nice alright and I wish It was mine. I bet the real A39 does not have this problem with traction. Quote Link to comment Share on other sites More sharing options...
WRENNEIRE Posted January 22, 2014 Share Posted January 22, 2014 I would love to see her again,and I am trying to see If I can get up to DownPatrick at Easter. Quote Link to comment Share on other sites More sharing options...
jhb171achill Posted January 22, 2014 Share Posted January 22, 2014 The real one's a real beast and has lifted nine bogie vehicles at Downpatrick with total ease. That, in itself, is nothing compared with what they did in traffic... Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 22, 2014 Author Share Posted January 22, 2014 A bit of video of A39 with new traction tires..QUOTE] Thanks Eamonn for sharing, no problems on that layout especially as it does not have my "Mountains of Mourne". Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 22, 2014 Author Share Posted January 22, 2014 I read that the weight should always be over the centre of the chassis for maximum adhesion to the rails even when only one bogie is powered. That's an interesting suggestion, I'll relook at the amount of weight mid Loco to see how that works. Thanks to everyone else for their input. Quote Link to comment Share on other sites More sharing options...
Hunslet 102 Posted January 22, 2014 Share Posted January 22, 2014 Kieran,weigh your Hornby weights that you are using,then see if you can put heavier weights into the same area.I use heavy duty washers that I can pick up in work in place of the suppliers weights in some loco's,as some of the weights supplied are not up to much. Quote Link to comment Share on other sites More sharing options...
irishthump Posted January 22, 2014 Share Posted January 22, 2014 Kieran,weigh your Hornby weights that you are using,then see if you can put heavier weights into the same area.I use heavy duty washers that I can pick up in work in place of the suppliers weights in some loco's,as some of the weights supplied are not up to much. Try and get your hands on a roll of lead flashing. It's soft enough to be cut with a heavy scissors and can be folded in shape easily. Quote Link to comment Share on other sites More sharing options...
BosKonay Posted January 22, 2014 Share Posted January 22, 2014 This stuff is very handy, you can use it to fill gaps, pour into spaces and even glue in 'sheets' to the underneath of chassis http://www.ebay.ie/itm/LIQUID-WEIGHT-FREE-FLOWING-WEIGHTING-SYSTEM-FOR-MODEL-RAILWAYS-AIRCRAFT-BOATS-/400562211820?pt=UK_Trains_Railway_Models&hash=item5d435e4bec Very handy for filling up tenders too to add weight and improve pickup connection... Quote Link to comment Share on other sites More sharing options...
Broithe Posted January 22, 2014 Share Posted January 22, 2014 A bit cheaper and non-toxic - http://www.gaugemaster.com/item_details.asp?code=DLBD-38 - might be slightly less dense, though, I suppose. Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 23, 2014 Author Share Posted January 23, 2014 I knew if I put on enough weigh I could over come the slipping wheels problem. SORTED She just glides up the hills like something from the Swiss Mountain Railway. One problem solved ... now where to hide all that weight? Quote Link to comment Share on other sites More sharing options...
Glenderg Posted January 23, 2014 Share Posted January 23, 2014 Great to see Heath Robinson alive and well at Kirley Jct! Quote Link to comment Share on other sites More sharing options...
Train model Posted January 23, 2014 Share Posted January 23, 2014 Love the class 80 Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 24, 2014 Author Share Posted January 24, 2014 For those who have been following my goal of getting a modified Hornby Class 55 Chassis under an A Class to tackle inclines on my layout with a heavy load my latest attempt was a bag of weights slung over the front bogie and this worked (See above). The weight in the bag was just under 100 grams and my two chassis weighted A7 =393 g and 045 = 388g. This would mean an overall weight of almost 500 grams per Loco. I haven't weighted an MM 071 yet but it would be interesting to see how the weights compare. There must be some mechanical engineers out there who could work out the maximum weight that a Hornby motor could take to keep it under traction. I decided to try my two existing A Class Locos to see how they would cope with the same load on the steepest incline. 012 which has a Class 55 chassis and minimum weight went OK on the flat but could not reach the summit of the steep incline. 023 managed the inclines fine if you give it enough power. The difference being that it used a Hornby Class 52 chassis which has a metal weight forming the cab floor at each end. ( Sorry I haven't a picture). So now it's a matter of getting the weight dispersal right but concealing that amount of weight will not be easy so back to the drawing board/test bed. I have heard of a modeller in the South Down area who used two power bogies on a Class 55 chassis, now that would be something to see! Quote Link to comment Share on other sites More sharing options...
Georgeconna Posted January 24, 2014 Share Posted January 24, 2014 Love the reverse Curve Kirlry. Quote Link to comment Share on other sites More sharing options...
patrick Posted January 24, 2014 Share Posted January 24, 2014 I have four silver fox A class on Hornby class 55 chassis. While their haulage capacity is limited its sufficient to haul 13 wagons or 4 coaches, the maximum length trains practical on my layout which has no gradient. The biggest problem I had with them was because only two axels are powered they are very susceptible to loosing traction on even slightly uneven track where one or two wheels can loose contact with the rail. As regards adding weight to a locomotive, just be sure that when the load is too great the wheels should slip thus preventing the motor overheating and burning out. Quote Link to comment Share on other sites More sharing options...
BosKonay Posted January 24, 2014 Share Posted January 24, 2014 What kind of gradients are we talking about kirley? Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 25, 2014 Author Share Posted January 25, 2014 What kind of gradients are we talking about kirley? Don't know Stephen, as you know practically no pre-planing went into this build so levels were made to allow trains to pass over/under each other. But looking at other layouts my inclines are quite steep as the pictures above shows. Quote Link to comment Share on other sites More sharing options...
BosKonay Posted January 25, 2014 Share Posted January 25, 2014 Gradients are a bit of a dark art! Your videos and experimentation are very useful indeed. When I first planned gradients on my layout, I got the woodlands scenics 2% and 4% grades. I was actually shocked at how little you could pull up a serious gradient - even with modern locos like the 181s or 071s. In the end, I all but removed gradients entirely, and kept things on the flat, tho I do plan a helix and storage level underneath the terminus, so am watching with interest! I've seen excellent reviews of the DCC Concepts powerbase too (their undertrack steel plate and magnet system) Quote Link to comment Share on other sites More sharing options...
Train model Posted January 25, 2014 Share Posted January 25, 2014 Hi Kieran I was on to the guy that sold me the a class and he is going onto the web to find what model was used.I cannot take it apart because it seems to be glued so hope the loco never brakes down.I sent you my e.mail address so if you contact me I have it pulling 12 coaches at a very low speed.i cannot up load videos on the site Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 26, 2014 Author Share Posted January 26, 2014 (edited) Finally got around to finishing some model lorries I have been building. The Scandia is a repaint of a RTR model. Not really happy with my outcome of the Road Transport Image lorries but they will do for filling up the Haulage Yard. I have cut down the footbridge to keep it in proportion with the building and am adding or should I say trying to add guttering to Glenderg's building. A fiddly job especially when then seem reluctant to stick. Edited January 27, 2014 by Kirley Quote Link to comment Share on other sites More sharing options...
Kirley Posted January 26, 2014 Author Share Posted January 26, 2014 Hi Kieran I was on to the guy that sold me the a class and he is going onto the web to find what model was used.I cannot take it apart because it seems to be glued so hope the loco never brakes down.I sent you my e.mail address so if you contact me I have it pulling 12 coaches at a very low speed.i cannot up load videos on the site Will do Michael Quote Link to comment Share on other sites More sharing options...
Train model Posted January 26, 2014 Share Posted January 26, 2014 http://youtu.be/CYMqHl1FwrM Sorry for the delay Quote Link to comment Share on other sites More sharing options...
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