I have a spacewalker 2 40 size and i need help with cutting out the engine holes in the cowl .i need to know what is the best way to mark it i don't want to over cut the cowl .I see some of the other guys airplane and they have done it with out removing more material then needed that wath i want .PLEASEHELP.

Tape a piece of manila folder to the fuse sort of hinged with the tape so that you can flip it back towards the canopy.

Cut out the holes in the manila.

Put the cowl on.

Flip the folder down and transfer the markings.

Dremel with a high speed setting and fine grit sanding disk

Use the search engine on this forum for "Best method to trim cowl" and you will find just what what BH suggested to you but in a more detailed fashion and with illustrations, for as they say a picture is worth a thousand words.

Karol

I now use a method that a flying buddy showed me. Take a piece of clear or semi clear flexible plastic sheet, then I put marks on the cowl and fuslage and on the plastic sheet, that helps to line everything up again. Then take the plastic sheet, align it with the marks you made, You then see where you need to make cut outs. Use a magic marker, outline that area ,cut it out,. test fit the plastic sheet.. Then transfer that to the cowl. It really works great andno botched up cowl.

Same as the others for marking.

For initial cut I use this: http://www3.towerhobbies.com/cgi-bin...&I=LXC678&P=ML
Then finish with something like this: http://www3.towerhobbies.com/cgi-bin...?&I=LXC587&P=M

Steve

Tried that but got no hits.

A search for cut cowl got hits.