2 October 2010
Longeron work forward of F-904 bulkhead
10.0 hours
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| 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. |
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| Longerons cleco'd (Full size) All holes drilled through the longerons. |
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| Fabbing F-904L attach strips (Full size) The instructions say to make these, here they are. |
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| 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. |
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| 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. |
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| 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. |
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| Locating auxiliary longeron F-713R (Full size) These longerons are clamped into place, then drilled using skin holes |
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| Fabricating F-719B attach clips (Full size) Need a left and right of these |
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| Fitting F-719R longeron (Full size) Using the attach clips, located the longerons and drilled using the skin holes. |
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