Does Nitinol have a limited working life? Andy

Hi Matt, For the sake of being picky. Proto:87 is specifically a wheel profile and track flange ways model engineering standard. The realism and accuracy of the rest of the model is whatever the model

It's my long held understanding that the glad hand of the existing Sergent Couplers EC87 and EN87 are already to scale. The narrow shank version EN87 fits in a scale width draft box. The EC87 shank fi

If they are out if stock, how do you order them? It's a bit difficult to figure out demand if you don't know people are waiting for them. Andy

Hear Hear, Plus 3% fee for CC or paypal domestic, 5% if from overseas. Andy

IIRC, Frank deliberately avoided making the couplers self-centering in order to make them as true scale and prototypical as possible. Andy

AFAIR, Sergents were intended to be used on near scale radii trackage. They are not universal in that they will operate faultlessly down to 18" radius and #5 switches. Andy

I'm talking about limited coupler swing. Long Cars, overly tight reverse curves and prototypical coupler swing don't mix. Andy

I'm sorry about failing eyesight. I'm getting up there myself, so I do understand. But speaking as someone who still manufactures as my retirement hobby, I can assure you, offering a ready assembled o

There is currently some sort of financial or regulatory stand-off between the USPS and the Australian mail system, at least from the US outbound. First class package service has been suspended in favo

Is there a shrinkage between the resin size and the cooled investment casting size? Andy

They look terrific. Great job! Andy

I'm just hoping Frank (and family) are safe and well. Andy

I'm only interested in remote uncoupling at any location. That requires a small, inexpensive, low power, remotely controllable mechanism in the vehicle itself. Fortunately it's a lot easier to impleme

They certainly didn't inter-operate when I experimented many years back. Andy