2 October 2010
Longeron work forward of F-904 bulkhead
|Drilling longeron forward of F-904 (Full size)|
Clamped the longerons to the skin and checked the forward end. They should be 3/4" short of the skin edge. Each needed to be trimmed about 1/4" to meet that. Then re-clamped after cutting the longeron short with a cut-off wheel. Drilled the holes through the skin and longeron.
|Longerons cleco'd (Full size)|
All holes drilled through the longerons.
|Fabbing F-904L attach strips (Full size)|
The instructions say to make these, here they are.
|Locating firewall (Full size)|
Put the firewall in place and clamped. Next step is to put rivets in the longeron/skin holes to make sure it isn't sagging from the weight of the firewall. Also drilled a couple of holes up top using the F-972 skin to fix the fore/aft position of the firewall.
|Clamping WD-602 bracket (Full size)|
This bracket is clamped so that the holes can be drilled through it. After drilling those holes, drilled the holes in the flange of the firewall.
|Locating landing gear hole (Full size)|
Using template from the drawing, made a pattern to cut hole for landing gear leg I forgot to take a picture after the holes were cutout.
|Locating auxiliary longeron F-713R (Full size)|
These longerons are clamped into place, then drilled using skin holes
|Fabricating F-719B attach clips (Full size)|
Need a left and right of these
|Fitting F-719R longeron (Full size)|
Using the attach clips, located the longerons and drilled using the skin holes.
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