I was making a non-flying Vought XF5U-1 solid wood model for my son and needed props. I The 5.5" were the right scale size so I ordered 4 two bladed with the idea of making them into 4 blade (non-operating). I realized that I needed two reverse and two forward to reflect the prop rotation on the real aircraft. A quick email to MAS returned a messages saying the reverse were not available in the 5.5 size. Instead, I chose two 6x4 normal and two 6x4 reverse. I barely had the email sent and t...