Well, that brings back memories. I picked up the Pilot Models version of the Pitts. over 15 tears ago. I wasn't happy with the non scale ailerons so I pretty much redid the plans and built it from scratch. I also replaced the plastic cowl and wheel pants with custom made, fiberglass units.
Originally, it flew with a stock, OS Max .10 and it was OK but not really as powerful in the air as was the full size.
So,,, some 7 years ago, I upgraded the OS .10 from a ferrous engine to ABC using a .15 piston and liner from, as I recall, a Hornet .15 Which made it a short stroke, .13, or so.
On an APC 7 X 3 and 25% fuel, at 21K, it ought to bring that little Pitts to a whole new level. Well, that brings back memories. I picked up the Pilot Models version of the Pitts. over 15 tears ago. I wasn't happy with the non scale ailerons so I pretty much redid the plans and built it from scratch. I also replaced the plastic cowl and wheel pants with custom made, fiberglass units.
Originally, it flew with a stock, OS Max .10 and it was OK but not really as powerful in the air as was the full size.
So,,, some 7 years ago, I upgraded the OS .10 from a ferrous engine to ABC using a .15 piston and liner from, as I recall, a Hornet .15 Which made it a short stroke, .13, or so.
On an APC 7 X 3 and 25% fuel, at 21K, it ought to bring that little Pitts to a whole new level.
https://www.youtube.com/watch?v=Xseov35rRQM
Just need to find a smooth runway for it, it cartwheels on grass.