Thank you all for your good advice. David & John’s weights for similar-ish locos are showing a pattern. Apart from that St*&%@?d gauge thing - which I’d spotted on your blog, and then ferreted out the K1 articles in NG&I to see if that had weights.
Brian’s method would be ideal if I had more than 15” of track! I’m hoping to see it move further and a little quicker at Mickleover on Saturday, where Paul has suggested he’ll have a test-track. Perhaps I should dig out some wagons too.
In the meantime, by Sunday night it had reached 474g (with about 20g more over the motor) and tonight I’ve brought it up to what turns out to be 509g, before cab detail, white metal driver (still to be acquired) and paint (though I hope there won’t be enough of that to count in the mass stakes.
Cheers
Simon
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Hi Simon
My "rebuilt Funkey" Vale of Ffestiniog weighs in at 524gm.? She has a BullAnt 8w drive chassis, runs superbly and is a good hauler.
Hope this help
Cheers
David
From:?"Simon Jones simon@... [O14]" <O14@...>
To:?O14@...?
Sent:?Sunday, 24 January 2016, 9:51
Subject:?[O14] Loco Weights
?I thought we'd had this conversation in the group before, but can't find a reference...
Is there a rule of thumb for adding weight to a loco - enough to make the most of its power without adding unnecessary strain?
I'm actually getting close to finishing a loco; the prototype is a petrol-electric bogie unit.
The model is plastic and with one powered bullant unit. Ideally, I'd like it to pull half a dozen wrightlines WDLR wagons which have some rolling resistance as they're mostly from the non-pinpoint bearing era.
Before adding weight the loco is 125g and barely enough mass to avoid wheels pin on its own. I've enough lead prepared to fit the body she'll to bring it up to 350g. I've no shortage of lead and plenty of space.
What's the mass is similar locos out there- could equally be a Garrett, funkey, Fairlie. And if powered on just 1 bogie, how is the weight distributed?
Cheers
Simon
