Mejzlik 3 oz
APC 4.5 oz

this is off the old type postal scale not digital so there a ball park #.

I will be glad to get the bird (DP Bipe) in the air to so i can give you all the scoop. That APC does have a very thin hub don't you think compared to the thicker mejzlik?

15% cool power
jett muffler the round one i think they call it a tuner pipe type all wrapped up in that circle muffler. I am not sure if i have the f or another type of glow plug i will check that out here soon.