Description
The Atlas 566 is an HO Code 83 #8 Custom-Line Mark IV right-hand turnout — right-hand mate to Atlas 565, completing the high-speed #8 pair for double-track crossovers and mainline passing sidings.
#8 geometry. 1-in-8 frog ratio ≈ 7°10′ frog angle, ~35 mph scale speed through the diverging route. The mainline frog of choice on prototype roads. Long overall length (~11") but allows long passenger trains and intermodal stacks to take the diverging route at speed.
Mark IV build. Blackened metal powerable frog, rivet-less switch points, drop-in geometry compatibility with Code 100 Custom Line plans.
Specifications
- Scale: HO
- Rail Code: Code 83 nickel-silver
- Type: #8 Custom-Line Mark IV turnout
- Direction: Right Hand
- Frog Angle: #8 (≈7°10′, 1:8)
- Frog: Blackened metal (powerable)
- Brand: Atlas
- SKU / Item Number: 566
Pairs Well With
- Atlas 565 — #8 LH Custom-Line Mark IV (left-hand mate)
- Atlas 564 — #6 RH (lower-speed mainline)
- Atlas 562 — #4 RH (yard / industrial)


