Jet Pack expertise/ image needed

OK, on top of the pack... the arc shape. In the WOF templates this part is shown as behind the round shape the rocket eventually comes out of. but clearly the tube part is molded into the arc shape. Also. there appears to be a recess between the tube and the arc near the top. See my crude drawing. I am working on this top arc piece and need clear image or advice. Thanks

I don't know if this will help you or not, as these are pics of my Man Of War pack. But it may give you a better view than some of the reference pics available. Hope this helps.

http://www.steadyhustle.com/IMG_0653.jpg

http://www.steadyhustle.com/IMG_0652.jpg

Heilman AoSW Jetpack_07

Which version of the templates are you using? 15" ?

Thank to all.

Not sure what size I am building. I did not know there different size template for the jet pack.

I am buildin a TESB version and movie photos seen to show a cavity betwen the tube anbd the "arc" peice.