Thanks for your comments guys.

Not really light, it is around 14 pounds, I will recheck the weight with someone else s scale. Manual stats around 12 lbs.

Test flight will be in around 12 days. I do believe that wing loading will help a lot with this particular biplane.

The original ones were powered by a small 4 cylinder engine, they were build with wood, fabric and little metallic sheeting, mostly at front.

Propeller was bigger and I do believe that rpm were low.