09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
69
PITOT/STATIC SYSTEM
1.
Locate Doubler Plate on
5” Inspection Cover using
FIGURE 06-08
as a template.
Transfer drill #30 and cleco.
2.
Transfer drill 1/4” for the Pitot Tube. Refer to
FIGURE 06-08
. If the Pitot Tube fits
too tight, open the hole with a deburring tool or file. Deburr and rivet Doubler to
Inspection Cover.
3.
Insert
Pitot Tube through 1/4” hole in Doubler and Cover. Attach to Angle Bracket
with 1/4” Conduit Clamps. Adjust Angle and Clamps to allow 7” of Pitot Tube to
extend below the Cover. Forward open end of Pitot Tube should face forward
when in flight. Adjust after mounting to Wing Skin as needed.
4.
Transfer drill #11 through base of Angle. Angle base should be oriented
outboard. Debur and rivet to Cover.
5.
Push a Union Elbow over the upper end of the Pitot Tube. Pull on the elbow body
while holding the inner sleeve to seal. Connect to Pitot line in wing. Pull on tubing
to seal. Attach Pitot Assembly to wing opening.
6.
Attach Union Elbow at root of wing to tubing.
7.
After attaching wings to fuselage, route line behind Station 3 Closeout down to
belly of aircraft. Route forward to firewall, then up and connect to pitot side of
instruments with correct connectors.
8.
Locate and drill a #30 hole in each Side Boot Cowl Skin per
FIGURE 06-09
.
9.
Pull rivet and push center mandrel out of rivet with a click punch or similar tool.
10.
Connect tubing to each protruding rivet body, on inside of Boot Cowl, and secure
with safety wire. Connect lines together with a Union Tee and connect to static
side of instruments with correct connectors.
11.
After painting Boot Cowl label each static location with a placard reading
“STATIC PORT KEEP OPEN”.