SECTION 8
THE FUSELAGE
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Unclamp the elevator tips from the horizontal stabilizer.
Allowable elevator travel is found in Section 15. Trim material from the F-811D-1 Spacer / Control Stop and F-
812B-1 Angle / Control Stop to allow for the proper amount of elevator travel (See “Elevator Stop Adjustment”,
DWG 78). Trim the stops so the flanges of both WD-605-1-L/R Elevator Horns contact the stops at maximum
deflection. Relieve the bottom flange of the HS-603 Rear Spar if this was not done during the horizontal stabi-
lizer construction, but DO NOT remove any material from the HS-609PP Rear Spar Reinf. Bar (See “Exploded
Iso View”, DWG 3).
Rivet and bolt the F-811D-1 Spacer / Control Stop and F-812B-1 Angle / Control Stop in place on the F-819-1
Aft Deck (See “Detail E”, DWG 71). Since the vertical stabilizer must be removed for riveting access, this step
can be delayed until it is removed for final painting, etc.
RUDDER STOPS
Install the rudder on the vertical stabilizer (See DWG 7).
Clamp the balance arms of the elevators to the horizontal stabilizer so they are held in the neutral position.
Cleco the F-886-L-1 & -R-1 Rudder Stops to the aft fuselage (See “Detail E”, DWG 71). Mark the aft edge of
the F-824-L-1 and -R-1 Aft Side Skins on the rudder stops (See “Detail H”, DWG 71).
Trim the F-886-L-1 & -R-1 Rudder Stops as shown in “Detail H” of DWG 71, until the distance between the ele-
vators and the rudder matches that shown in “Rudder Deflection”, DWG 85. To mark for the initial trim, uncleco
the rudder stops and lower them slightly while keeping them vertically aligned with the holes in the F-824 -1 Aft
Side Skins. Rotate the rudder to the proper distance from the elevator trailing edge, and mark a line on the rud-
der stop using the front face of the R-405 Rudder Horn as a guide (DWG 7).
Trim the F-886-L-1 & -R-1 Rudder Stops just short of the line that was marked in the previous step. Complete
the trimming of the rudder stops using “Detail H” on DWG 71 as a guide.
Cleco the F-886-L-1 & -R-1 Rudder Stops in place on the fuselage and check the rudder travel. Make final trim
adjustments to the contact surface of the rudder stops as needed to get the specified dimension between the
elevators and rudder at maximum deflection.
Machine countersink the four rivet holes in the F-886-L-1 & -R-1 Rudder Stops for the flush rivets specified in
“Detail A” of DWG 74. Deburr/smooth the edges.
Prime the F-886-L-1 & -R-1 Rudder Stops if/as desired.
Rivet the F-886-L-1 & -R-1 Rudder Stops in place on the aft fuselage (See “Detail A”, DWG 74).
FLAP MOTOR
Final-Drill 1/4 the holes in the A-406-1 Aileron Bracket-Outboard used for attaching the ES 85615-157-1 Linear
Actuator Assembly (Flap Motor) (See “Detail E”, DWG 79). Final-Drill #12 the 1/16 holes in the aileron bracket-
outboard used to attach it to the F-807A-L-1 Bulkhead. Final-Drill #12 the 3/16 holes in the F-807A-L-1 Bulk-
head used to attach the aileron bracket-outboard.
Attach the A-406-1 Aileron Bracket-Outboard to the F-807A-L-1 Bulkhead (See “Detail E”, DWG 79).
Final-Drill 1/4 the holes in the three clevis brackets on the WD-806 Flap Actuator Weldment (See “Detail D”,
DWG 79).
Install the WD-806 Flap Actuator Weldment in the fuselage (Detail D, DWG 77).
Drill a hole in the flap motor for safety wire as shown in “Safety Wire Flap Motor”, DWG 79).
Attach the flap motor to the A-406-1 Aileron Bracket-Outboard and the WD-806 Flap Actuator Weldment (Detail
D & E, DWG 79).
Safety wire the rod end bearing to the flap motor (See “Safety Wire Flap Motor”, DWG 79).
During final assembly, the F-876-1 Aft Cabin Covers are installed as shown in “F-876-1 Aft Cabin Cover”, DWG
RV-8/8A
SECTION 8
THE FUSELAGE
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79.
RUDDER CONTROL CABLES
Deburr the two F-805E-1 Rudder Cable Supports (See “F-805B-1 Floor Support Angle Detail”, DWG 69). Final-
Drill #40 and machine-countersink the nutplate attachment rivet holes. Rivet the nutplate to each rudder cable
support.
Install the two F-852A Aft Rudder Cable Assemblies, working from the back towards the front. After passing
them through the holes in each fuselage bulkhead, push a snap bushing over the cable ends and snap them
into the bulkhead. Refer to DWG’s 65 and 70 for rudder cable snap bushing locations.
NOTE: The 4” plastic
tubes on both Rudder Cable Assemblies are positioned at the cable exit holes in the F-824 -1 Aft Fuse
Side Skins (See “Side View”, DWG 78). The 13” plastic tubes are routed with the forward end of the ca-
bles to the F-805B-1 Floor Support Angles (See DWG 69).
Push a snap bushing over the ends of both F-852A Aft Rudder Cable Assemblies , then pass the ends of the
Rudder Cable Assemblies through the F-805E-1 Rudder Cable Supports (See “F-805B-1 Floor Support Angle
Detail”, DWG 69). Anchor the 13” plastic tubes to the rudder cable guides as shown in “Section F-F”, DWG 69.
The 13” plastic tubes prevent the rudder cables from rubbing against the inboard side of the Foot Well Assem-
blies.
Attach the F-805E-1 Rudder Cable Supports to the F-805B-L-1 & -R-1 Floor Support Angles using the appropri-
ate hole location for the model type you are building (See “F-805B-1 Floor Support Angle Detail”, DWG 69).
Push a snap bushing over the ends of both F-852A Aft Rudder Cable Assemblies, then pass the ends of the
cables through the holes in the F-804B-2 Center Section Aft Bulkhead and the F-804A-2 Center Section For-
ward Bulkhead (See DWG 64). Press the snap bushings into the holes in the Center Section Aft Bulkhead.
Push a snap bushing over the ends of both Rudder Cable Assemblies and press them into the holes in the Cen-
ter Section Forward Bulkhead.
Anchor the 4” plastic tube at the aft end of both F-852A Aft Rudder Cable Assemblies to the F-824-L-1 & -R-1
Aft Fuse Side Skins (See “Side View”, DWG 78).
Temporarily connect the aft end of both F-852A Aft Rudder Cable Assemblies to the R-405PD Rudder Horn
(See “Side View”, DWG 78).
RUDDER PEDALS
This section covers the installation of the in-flight adjustable rudder pedals supplied standard with the RV-8 / 8A
fuselage kit. If you are using the optional ground adjustable rudder pedals refer to DWG OP-3 (for RV-8) or OP-3A
(for RV-8A).
If you intend to install the optional Rear Seat Rudder Pedals, do so while installing the front seat rudder pedals.
Refer to DWG OP-5 (RV-8) or OP-5A (RV-8A)
Final-Drill #12 the outboard two 1/8 holes in the end plate of the WD-817 Rudder Slide Bar (See “Exploded Ref-
erence View”, DWG 81).
Final-Drill #12 the two 1/8 holes in the flange of the WD-818 Rudder Socket.
Insert the tube of the WD-817 Rudder Slide Bar fully into the WD-818 Rudder Socket and temporarily bolt them
in place on the forward cockpit floor and Firewall Assembly (See “Isometric View”, DWG 81).
Match-Drill #12 one of the 1/8 holes in the WD-818 Rudder Socket into one wall of the WD-817 Rudder Slide
Bar (do not drill through both walls). Temporarily insert a short AN3 bolt in the hole, then match-drill #12 the
hole in the opposite side. Unbolt the rudder slide bar and rudder socket from the forward cockpit floor and Fire-
wall Assembly. Separate the rudder socket from the rudder slide bar, and deburr all of the #12 holes in both
parts.
Final-Drill 1/4 the hole in the WD-816 Rudder Slide that receives the F-8103E Lock Pin (See “F-8103 Release
Assembly”, DWG 81).
Put the F-8107 Slide Collar and WD-816 Rudder Slide in place on the WD-817 Rudder Slide Bar. If the rudder
slide does not move smoothly on the rudder slide bar, use a small hone in a hand drill to hone the portion of the
rudder slide that is causing the binding.
Temporarily bolt the WD-818 Rudder Socket to the WD-817 Rudder Slide Bar.
Drill a #30 hole in the top of the F-8107 Slide Collar and WD-817 Rudder Slide Bar (See “Side View”, DWG 81).
