Finally made a start after 40 years.

[Patrick Davey]

Lovely stuff!

[dropshort105]

On 13/11/2025 at 4:53 PM, LNERW1 said:

I like the helix, I am planning on using two myself on my home layout. What radius track have you used, and what is the gradient?

It rises 83cm for each 360 deg of radius 3 curve, whatever gradient that is.

[Broithe]

24 minutes ago, dropshort105 said:

It rises 83cm for each 360 deg of radius 3 curve, whatever gradient that is.

Is it 8.3cm, perhaps?

Or 83mm.

[Ironroad]

Assuming you mean 8.3 cm, the grade is approx 1/38.

[dropshort105]

1 hour ago, Broithe said:

Is it 8.3cm, perhaps?

Or 83mm.

Yup, 83mm, I try not to use my brain on a weekend.