JJ73 Posted January 10, 2019 Author Share Posted January 10, 2019 Want to see my latesr Totem video???Click Here:- Link to comment Share on other sites More sharing options...
JJ73 Posted January 11, 2019 Author Share Posted January 11, 2019 My Review of the Mag - Hornby - The Collector Issue 118 - The Review (I tell you the answer to the competition!!!)Click here :- Link to comment Share on other sites More sharing options...
JJ73 Posted February 23, 2019 Author Share Posted February 23, 2019 Any Cider Drinkers here on the Forum???I've made a vid about Vintage Cider which will be Premier on the Wednesday 27th Feb @ 8:30 PM Called "Vintage Cider Tasting"!!! Link to comment Share on other sites More sharing options...
JJ73 Posted March 13, 2019 Author Share Posted March 13, 2019 I. K. Brunel & his Rivals - Men who changed the Globe foreverI made a vid about this :- Link to comment Share on other sites More sharing options...
JJ73 Posted March 28, 2019 Author Share Posted March 28, 2019 I'm Premier another Vid tonight (28/03) @ 9PM about Millers Dale Viaduct & a secret Location about (Railway) shoes!!!Here is the Link :- Link to comment Share on other sites More sharing options...
JJ73 Posted July 11, 2019 Author Share Posted July 11, 2019 Have you noticed that when your using your Loco's & when you turn the power off some Loco's stop straight away & others will travel X amount of C.M. before stopping??? Well as usual I've made a video go out to explore just that!!! Here is the Link :- (It's Live now 11/07/2019) Link to comment Share on other sites More sharing options...
walkingthedog Posted July 11, 2019 Share Posted July 11, 2019 The ones that travel is generally because they have a flywheel/s. This can be prevented if you slow the loco before stopping it. Can also be because the loco is pulling a heavy load. Link to comment Share on other sites More sharing options...
atom3624 Posted July 11, 2019 Share Posted July 11, 2019 It's not a good idea to even need to notice the 'flywheel effect' or jam the wheels up.2 years down the road, you'll be asking 'how do I change the nylon drive gear of 'x' or 'y' locomotive'. 100% as WtD says - with and without flywheel. Al. Link to comment Share on other sites More sharing options...
2e0dtoeric Posted July 11, 2019 Share Posted July 11, 2019 Jimy - do you turn your car engine off whilst driving along?No, of course not.You shouldn't do the same with your loco's. Slow down and stop, before turning the power off! Link to comment Share on other sites More sharing options...
walkingthedog Posted July 11, 2019 Share Posted July 11, 2019 Exactly Al. Run the loco flat out and then cut the power. The perfect way to wreck a loco. Link to comment Share on other sites More sharing options...
JJ73 Posted July 11, 2019 Author Share Posted July 11, 2019 I don't normally do this - but it was a bit of an experiment really to see how far they travel!!! Link to comment Share on other sites More sharing options...
walkingthedog Posted July 11, 2019 Share Posted July 11, 2019 Not a good idea, in fact a very bad idea. Link to comment Share on other sites More sharing options...
NormanQ4 Posted July 12, 2019 Share Posted July 12, 2019 I don't usually look at posts by JJ and certainly not his videos, but about once a year I get curious about what others are replying. I find the analogy with what I assume is a petrol / diesel car a bit odd since a car that's out of gear would freewheel quite merrily downhill with the engine turned off without doing any harm to the engine and one that's in gear would automatically jump start. I'm also puzzled as to how cutting the power to an electric motor would wreck a loco since all the moving parts are interconnected and would all stop moving at the same time. A flywheel keeps a certain amount of momentum which is also transmitted through the other moving parts after the power is cut. I have six cut off switches around my layout around 2 metres apart that kill the power to the track and stops all the locos instantly. These switches are in place as an emergency measure to prevent collisions, which I think are a more likely way to wreck locos than cutting the power. I would sure like to know the logic being applied to reach the aforementioned conclusions, since they don't make any sense to me. Maybe I'm missing something.Some evidence would be good. Link to comment Share on other sites More sharing options...
atom3624 Posted July 12, 2019 Share Posted July 12, 2019 Norman, you are entitled to your opinion of course. JJ had observed something, for which we clarified the potential to damage parts.That gears are interconnected doesn't make it a good thing - in your case it's presumably to avoid even greater harm - one train running into another. These locomotives nowadays have components made of a mixture of materials, in the interests not just of costs, but of smooth running, but it HAS been on this forum on several occasions, incidents whereby plastic / nylon gears have broken - this can be for several reasons, but one will definitely be for exaggerating the loading on them which sudden increases, cuts, and in some circumstances reversals of power will create. Interconnected or not, a sudden load on any gear, or supporting shaft / bush / bearing will increase the the speed of wear on those components. Free-wheeling in a car is perhaps not the best analogy - slotting from first, moving forwards, straight into reverse would be!!All parts are still interconnected, but momentum will not help here. Bottom line is, many locomotives have a flywheel added to smooth its operation, but this needs to be accounted for and considered when accelerating - there are plastic dogbone driveshafts in many places which can flex, twist and in some cases break, so smooth operation is not just 'realistic', it will be a great benefit to the longevity of operation of your locomotive. Al. Link to comment Share on other sites More sharing options...
walkingthedog Posted July 12, 2019 Share Posted July 12, 2019 I think one should remember that if the loco uses a worm drive it only works in one direction, I don’t mean forward and reverse. The worm gear will drive a cog but the cog will not drive the worm gear. Suddenly stopping a loco from a high speed can strip the worm or cog. Incidentally I don’t really need emergency stop sections on my layout as I only run trains slowly, but I guess they can be a good idea for the occasional emergency. Turning the knob to zero works for me. Link to comment Share on other sites More sharing options...
NormanQ4 Posted July 12, 2019 Share Posted July 12, 2019 @atom 3624Free-wheeling in a car is perhaps not the best analogy - slotting from first, moving forwards, straight into reverse would be!! That would just be common sense and could easily be supported by evidence.My comment was in response to a comment made about turning off a car engine whilst driving along. but it HAS been on this forum on several occasions, incidents whereby plastic / nylon gears have broken - this can be for several reasons, but one will definitely be for exaggerating the loading on them which sudden increases, cuts, and in some circumstances reversals of power will create. On many forums regardless of their subject matter people will theorise about why things happen, but just because a number of people, or even a very large number of people, have made the same comment on something doesn't make it a fact.Of course there are similarities between model railways and real railways but I think that people sometimes get carried away extrapolating conclusions between the two. one will definitely beWhere's the evidence? @WtDIncidentally I don’t really need emergency stop sections on my layout as I only run trains slowly, but I guess they can be a good idea for the occasional emergency. Turning the knob to zero works for me. I don't know why you assume that I might be running my trains fast.My layout is 4.0m x 1.8m with 5 loops and a passing loop, all interconnected with points and four diamond crossings plus sidings, sometimes running up to six trains at once and watching what my four year old grandson is getting up to. By the time I worked out which train to stop on the screen to prevent a crash it would probably be too late even at relatively slow speed. Link to comment Share on other sites More sharing options...
walkingthedog Posted July 12, 2019 Share Posted July 12, 2019 Ah the magic word screen and grandson answers my question. I just turn the knob to zero of the controller powering the loop and the loco stops. My grandson hasn't played on my layout.........yet. Perhaps I will also require an emergency switch. I wrongly assumed fast running because of possible collisions. I don’t have them, well haven’t yet. Plenty of time to stop. My apologies. Link to comment Share on other sites More sharing options...
NormanQ4 Posted July 12, 2019 Share Posted July 12, 2019 Apology graciously accepted.You'll probably also need to keep some heart medication handy. Link to comment Share on other sites More sharing options...
walkingthedog Posted July 12, 2019 Share Posted July 12, 2019 Yes I’ve been considering that. Can you recommend anything Norman. 😉 Link to comment Share on other sites More sharing options...
atom3624 Posted July 12, 2019 Share Posted July 12, 2019 Norman please do not 'part quote' me without the linking comments. The 'definitely be' IS a generally considered 'mechancial sympathy' most operators use to permit better and longer operation of these locomotives.Brutal and abrupt operation of 'anything mechanical' is always advised against, for generally pretty obvious reasons. Al. Link to comment Share on other sites More sharing options...
Fazy Posted July 12, 2019 Share Posted July 12, 2019 Heart medication,ummmm how about 'Eva Green' seems to work for me! Is this the JJ dumping topic file. Where anything JJ says gets put? Has I'm sure the sudden stop starting topic was by its self yesterday. Link to comment Share on other sites More sharing options...
walkingthedog Posted July 12, 2019 Share Posted July 12, 2019 Yes it is his Video page. Link to comment Share on other sites More sharing options...
Chrissaf Posted July 12, 2019 Share Posted July 12, 2019 Not everything JJ posts gets put here. Just his YT video channel links. Adam the forum administrator asked JJ to keep his video links in this thread some time ago. JJ sometime forgets. Link to comment Share on other sites More sharing options...
JJ73 Posted August 3, 2019 Author Share Posted August 3, 2019 Latest Video (03/08/2019) Simply Called "Railway Photos" (also it does contain 2 videos as well) here is the link :- Also 2 other videos coming this way over the next few days...1 may be a bit famous (kind of) & the other a very unusual road here in Derbyshire!!! 😉 Link to comment Share on other sites More sharing options...
Derek 19B Posted August 3, 2019 Share Posted August 3, 2019 Would that be a straight flat road?derek 19b Link to comment Share on other sites More sharing options...
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