Q2 Plans Chapter 18 Page 18-01
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- Category: Q-2/Q-200 Plans
- Published: Wednesday, 03 May 2006 20:05
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INSTRUMENT AND PITOT-STATIC INSTALLATION INSTRUMENT PANEL INSTALLATION
..... An infinite variety of instrument panel configurations are possible. Since this area of the aircraft is such a popular focus for that 'custom' look, we have refrained from presenting any specific configurations beyond the pictures of our panel and a few suggestions. .....The basic outline of the instrument panel was cut¬out in Chapter 4. It is suggested that all cutouts for instruments and equipment be completed prior to permanently mounting the instrument panel to the air¬frame. Nominally, the aft face of the panel is at FS41. This can vary depending on the particular pilot size and positioning to be used by the individual builder. The three sub panels that extend down'below the instrument panel to meet the two side consoles and the center console are constructed from either scrap 1/8" thick plywood, or else 1/4" white foam with 1 BID on either side. One BID should be laminated on either side of the complete instrument panel to add rigidity and to seal the plywood. .....If the builder wishes to make the instrument panel removable, small tabs can be fabricated. These tabs would be bonded to the fuselage, and the instru¬ment panel bolted to them. Otherwise, permanently mount the instrument panel with BID tapes to the fuselage sides and the consoles. If the attachment is to be permanent, all work forward of the panel should be completed prior to this step, as access will become very difficult. .....It is recommended that the following controls be on the center sub panel: cowl flap, carb heat, mixture control. It is further recommended that the throttle be located on the left sub panel. The electrical switches and fuses can be located either on the center sub panel, or else elsewhere accessable to the pilot. Conventionally, flight instruments go on the left side of the panel, engine instruments predominately in either the center of the panel or on the far right, and avionics are mounted in either the center or the right side of the panel. .....Provision must also be made for a ground bolt, which is simply a AN3-7A bolt located somewhere on the panel that is used to connect the equipment needing grounding. (See the electrical system schematic). .....The instruments included with the kit are those required by the FAA for day VFR flight. There is plenty of additional room available for optional instruments and avionics. PITOT-STATIC SYSTEM INSTALLATION
..... Begin by mounting the two Q2PS1 static ports on either side of the fuselage as shown. Use flox, being careful not to clog up the static hole. Two static ports are used in order to assure accurate readings during sideslip maneuvers. .....The schematic indicates the required connections for the Airspeed and Altimeter. Run the tubing so that it does not interfere with baggage or passengers. It is recommended that it travel down the center console before reaching the instruments. .....The pitot system must be leak checked. Have one individual watch the airspeed indicator, while the other person blows into the pitot tube and uses his tongue to hold in the presssure. The airspeed indicator should register a speed, which remains con¬stant for a few seconds. If the speed diminishes while the second individual is holding the pressure in the system, then there is a leak somewhere, probably at one of the connections. |
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