SECTION 8
THE FUSELAGE
RV-8/8A
8-31
8s8PP-1 r1 06/23/11
RV-8A Only:
Machine countersink for dimples, the #40 holes in the F-898-L & -R Auxiliary Longeron side webs,
that are common with #40 dimple countersunk holes in the F-891-L-1 & -R-1 Fwd Side Skins.
With the left and right F-804H-1 Center Section Side Plates still clecoed to the Center Section Assembly, ma-
chine countersink for dimples, the #40 holes in each side plate that are common with dimple countersunk #40
holes in the left and right F-823-1 Mid Side Skins.
Machine countersink for dimples, the #30 holes in the top surface of each F-856-1 Spacer (See “Detail A”, DWG
72).
Machine countersink for dimples, the #19 holes in the top surface of each F-856-1 Spacer (See “Detail A”, DWG
72).
RV-8 Only:
Machine countersink for dimples, the #19 screw holes in the F-843-L-1 & -R-1 Lower Longeron side
webs, that are common with dimple countersunk screw holes in the F-820-L-1 & -R-1 Fwd Side Skins (DWG
74).
RV-8 Only:
Machine countersink for flush screws, the top web of the F-844-L Auxiliary Longeron at the #19
holes common with the F-883-1 Fuel Valve Bracket (DWG 68).
RV-8A Only:
Machine countersink for flush screws, the top web of the F-898-L Auxiliary Longeron at the #19
holes common with the F-883A-1 Fuel Valve Bracket (DWG 68A).
RV-8 Only:
Machine countersink for dimples, the #19 screw holes in the F-802D-L-1 &-R-1 L. G. box plates,
that are common with dimple countersunk #19 screw holes in the F-820-L-1 & -R-1 Fwd Side Skins.
RV-8 Only:
Remove the two screws and the two temporarily installed bolts from the F-843-L-1 & -R-1 Lower
Longerons.
Uncleco and remove, all remaining parts attached to the Center Section Assembly and the Fwd Fuselage Sub
Structure with clecos.
Machine countersink for dimples, the #40 holes in the left and right F-857C Angles that are common with dimple
countersunk #40 holes in the F-824-L-1 & -R-1 Aft Side Skins (See “Detail D”, DWG 71).
Machine countersink for a flush rivet, the #30 rivet hole in each F-814C-1 Inboard Seat Rib Angle, used for at-
taching the F-805B-L-1 & -R-1 Floor Support Angles (See “Detail D”, DWG 69).
Machine countersink for dimples, the #40 holes in the F-888 Aft Mid Longerons and the F-889 Aft Lower
Longerons that are common with dimple countersunk holes in the F-824-L-1 & -R-1 Aft Side Skins.
RV-8 Only:
Machine countersink #30 for dimples, the five #30 holes in the tab at the fwd end of the F-889-L-1
& -R-1 Aft Lower longerons (DWG 71).
RV-8A Only:
Machine countersink #30 for dimples, the five #30 holes in the tab at the fwd end of only the F-
889-R-1 Aft Lower longeron (DWG 71).
RV-8A Only:
Machine countersink the two #40 holes in the F-895B-1 Spacers to accept dimples in the F-891-L-
1 & -R-1 Fwd Side Skins.
Machine countersink for dimples, the #40 holes in the top web of the F-887-L-1 & -R-1 Upper Longerons that
are common with #40 dimple-countersunk holes in the F-816A-L-1 & -R-1 Cockpit Rails
. NOTE: Do not ma-
chine countersink two of the holes near the aft end of each cockpit rail are marked do not rivet (See
“Left Cockpit Rail”, DWG 72).
Machine countersink #40 for dimples, all of the #40 holes in the side web of the F-887-L-1 & -R-1 Upper
Longerons.
Machine countersink #30 for dimples, the #30 holes on the side web of the F-887-L-1 & -R-1 Upper Longerons,
that are common with the WD-802-L-1 & -R-1 Upper Engine Mount Brackets and #30 dimple countersunk holes
in the F-820-L-1 & -R-1 Fwd Side Skins
. CAUTION: Do not machine- countersink the holes in the top web
of the upper longerons that are common with the F-801C-1 Upper Angle (See “Fwd Fuse Skins and
Structure”, DWG 67).
Deburr all match-drilled and final drilled holes in all the loose fuselage substructure parts.
Deburr all holes in all fuselage skins.
Trim the two indexing tabs from the bottom of the F-820-L-1 & -R-1 (RV-8) or F-891-L-1 & -R-1 (RV-8A) Fwd
Side Skins, and deburr the area where they were removed.
RV-8/8A
SECTION 8
THE FUSELAGE
8-32
8s8PP-1 r1 06/23/11
Deburr the holes in the fwd and aft bottom flanges of the Center Section Bulkhead Assembly.
Deburr the #30 holes in the F-814E-L-1 & -R-1 Seat Ramp Supports that were final-drilled to the Fwd Inboard
Seat Rib Assemblies. Deburr the corresponding holes in the Fwd Inboard Seat Rib Assemblies.
Deburr the rivet holes at the fwd and aft ends of F-826-1 and F-827-1 Mid Bottom skins.
Deburr all open rivet holes on Fwd Fuselage Sub Structure.
Refer to DWG 74 or 74A for the following steps, to identify which holes in the fuselage skins need to be dimple
countersunk for flush rivets.
Dimple countersink the #40 holes in the Firewall Assembly side flanges that are common with dimple counter-
sunk holes in the F-820-L-1 & -R-1 (RV-8) or F-891-L-1 & -R-1 (RV-8A) Fwd Side Skins.
Dimple countersink #40, the side flanges of the F-866A-1 Lower Fwd Baggage Bulkhead
. NOTE: Do not dim-
ple countersink the small tabs at the top, which nest behind the F-887-L-1 & -R-1 Upper Longerons.
RV-8A Only:
Dimple countersink the #40 holes in the F-802R-L-1 & -R-1 Fuselage Bulkheads that are common
with holes in the F-891-L-1 & -R-1 Fwd Side Skins.
Dimple countersink the four #40 holes at the center aft end of the F-822-1 (RV-8) or F-890-1 (RV-8A) Fwd Floor
Panel that are located between the rows of holes common to the fwd and aft bottom flanges of the Center Sec-
tion Bulkhead Assembly. Two of these holes are common with two holes in the F-826-1 Right Center Bottom
Skin, and the other two holes are common with two holes in the F-827-1 Left Center Bottom Skin.
RV-8 Only:
Dimple countersink the five #30 holes on each side of the F-822-1 Fwd Floor Panel that are com-
mon with the previously machine countersunk holes in the bottom web of the F-843-L-1 & -R-1 Lower
Longerons (See “F-843-1 Details”, DWG 67).
Dimple countersink the #40 holes in the F870E-1 Skin Stiffener, F-870B-1 Outboard Stiffener (DWG 63 or 63A).
RV-8 Only:
Final-Drill #40, then deburr, the nutplate attachment rivet holes on the F-864C-1 and F-865B-1
Throttle Quadrant Angles (See “Throttle Quadrant Assembly view and Right Console Assembly”, DWG 68).
RV-8 Only:
Dimple-countersink the #40 holes in the F-865B-1 Angle, and F-864C-1 Throttle Quadrant Angles
that are common with dimpled countersunk holes in the F-820-L-1 & -R-1 Fwd Side Skins (DWG 68). Dimple
Countersink #40, the nutplate attachment rivet holes in the throttle quadrant angles.
RV-8A Only:
Final-Drill #40, then deburr, the nutplate attachment rivet holes on the F-8100C-1 and F-8101B-1
Throttle Quadrant Angles (See “Throttle Quadrant Assembly” and “Right Console Assembly” , DWG 68A).
RV-8A Only:
Dimple countersink the #40 holes in the F-8100B-1 Angle, and F-8101C-1 Angle that are common
with dimpled countersunk holes in the F-891-L-1 & -R-1 Fwd Side Skins (DWG 68A). Dimple Countersink #40,
the nutplate attachment rivet holes in the F-8100B-1 Angle, and F-8101C-1 Angle.
Dimple countersink the #40 holes in the F-860A-L-1 & -R-1 Fwd Arm Rests, F-860B-L-1 & -R-1 Mid Arm Rests,
and F-860C-L-1 & -R-1 Aft Arm Rests that are common with dimple countersunk holes in the left and right F-
823-1 Mid Side Skins (DWG 69 & 74 or 74A).
Dimple countersink the #40 holes in the F-805-L-1 & -R-1 Fuselage Bulkheads, and the holes in the F-806-L-1
& -R-1 Fuselage Bulkheads, that are common with dimple countersunk holes in the left and right F-823-1 Mid
Side Skins.
NOTE: Do not dimple countersink the small tabs at the top, which nest behind the F-887-L-1
& -R-1 Upper Longerons.
Dimple countersink the #40 holes in the F-815A-L-1 & -R-1 Fwd Outboard Seat Ribs, and F-815B-L-1 & -R-1 Aft
Outboard Seat Ribs, that are common with dimple countersunk holes in the left and right F-823-1 Mid Side
Skins.
Dimple countersink #40, the rivet holes in the F-815C-L-1 & -R-1 Angles that are common with dimple counter-
sunk holes in the left and right F-823-1 Mid Side Skins.
Dimple countersink the #40 holes in the flanges of the F-807A-1, F-808-1, F-809-1, F-810B-1, F-811A-1 & E-1,
and the F-812A-1 & C-1 Bulkheads that are common with dimple countersunk holes in the F-842-1 Aft Bottom
Skin Fwd, F-828-1 Aft Bottom Skin, and the left and right F-824-1 Aft Side Skins
. NOTE: Do not dimple-
countersink holes in the small tabs that are common with the F-887-L-1 & -R-1 Upper Longerons, F-888-
L-1 & -R-1 Mid Longerons, or F-889-L-1 &-R-1 Lower Longerons.
Dimple countersink the #40 holes in the bottom flange of the F-818A-L-1 & -R-1 Baggage Ribs that are com-
mon with dimple countersunk holes in the F-842-1 Aft Bottom Skin Fwd (DWG 71 & 74 or 74A).