RE: K&B .48 vs OS 46 VXDF
Hi,
The old OS 46 was about the same as the K&B, but more reliable.
The new os46 (anodized head) is more powerfull, easier to adjust and very reliable!
It's the best DuctedFan engine i ever had. Easier to set than the OS 91
Go with the new OS 46, you wont regret it