Q1 Plans Chapter 16 Page 16-1

Details

Category: Quickie Plans

Published: Saturday, 31 May 2008 01:00

Written by Jun Su

Hits: 3091

INSTRUMENT PANEL

The instrument panel is made out of orange foam using 2 BID on each side for rigidity. A full size pattern is included Don’t get carried away with installing too many instruments; you will be much happier with the aircraft if you keep everything light and simple. The suggested panel layout should be considered as having the maximum amount of instrumentation; the instruments supplied with the kit are all that are required.

The instrument panel is mounted to the instrument panel bulkhead using the three 100PM-6 shock mounts.

The small panel containing oil temperature and oil pressure gauges is mounted on the right side of the cockpit at the same station as the instrument panel. One ply of BID on each face, and one BID on each side to join the panel to the fuselage side should be sufficient.

NOTE: The Instrument Panel Bulkhead may have to be modified to allow the instruments to project forward through it.

PITOT-STATIC SYSTEM

The pitot-static system consists of a cockpit static source and a pitot tube mounted on the right wing.

Since a cockpit static source is used, simply drill some small holes in the static hole plugs on the back of the altimeter and airspeed.

The pitot tube should point forward at about BL34 on the right wing. Use the 1/4” OD x .035” aluminum tubing for the pitot tube and route it to inside the fuselage from that point.

Then use the Poly-Flo Polyethylene tubing (3/8” OD x .062”) to run inside the fuselage up to the elbow fitting (710-153) on the airspeed indicator. Use hose clamp (0750-004) at the junction of the aluminum tube and the Poly-Flo tube. Safety wire may be used at the elbow junction to prevent leaks. To do this, wrap the safety wire around the junction at least three times and then twist the ends with a pair of pliers so that the loops tighten up around the tubing.

As a check of your pitot system, have one individual watch the airspeed indicator while you blow into the pitot tube and then hold your finger over the end. If the airspeed indicator returns to 0 quickly, then there is a leak somewhere in the pitot static system. If this is the case, recheck all connections and retest until you are able to pass the test procedure.