Quickie Q2 Lite Construction Manual - page 224

.....

The fuel tank must be trimmed to fit your fuselage. Refer back 

to the chapter on Basic Fuselage Assembly for a sketch showing the 

fuel tank positioning. The leading edge of the fuel tank is nominally 

at FS36.1; the trailing edge should be at about F558.1 in order to 

provide a nominal 6 inches of clearance between the fuel tank and the 

Seatback Bulkhead. You will find that the sides of the fuel tank need 

to be trimmed back to allow the fuel tank to sit down against the 

fuselage bottom. Verify that the elevator control rod C513 does not 

interfere with the top of the main fuel tank as it runs forward to 

the elevator by skipping ahead in this chapter. If it does, you must 

trim down the height of the main fuel tank to clear by a minimum of 

3/8", or laminate a slot into the fuel tank for this CS13 clearance. 

.....

Baffles are used to prevent excessive sloshing of the fuel 

within the tank, as well as to increase the stiffness of the fuel 

tank so that it may be stepped on during entry and exit from the 

aircraft. 

.....

Three baffles are used; one spanwise baffle about 18" wide, and 

two longitudinal baffles that extend from the landing edge of the 

fuel tank to within 4 inches of the trailing edge of the fuel tank. 

The sketches illustrate positioning and size. Note that openings are 

left regularly along the baffles to allow fuel to move back and forth 

slowly. Particularly note the opening at the top which is part of the 

venting system. Those openings should be about 2 inches in length and 

about 1" in height, and need not be accurately shaped. 

.....

The baffles are fitted using trial and error until they fit both 

against the fuel tank and also against the fuselage bottom when the 

tank is inserted into place. Each baffle should have 1 BID on each 

side, and the 1/4" thick white foam is used for the core material. 

Once each baffle is properly trimmed, it should be mounted 

permanently to the fuel tank with micro and a BID tape on either side 

with a minimum 1" lapping onto each surface. ,Upon installation of 

the fuel tank permanently to the fuselage, these baffles will be 

coated liberally with flox so that they bond to the fuselage bottom. 

PAGE 14-3     

CONTINUED ON NEXT PAGE

Q2 Plans - Chapter 14 - Page 14-04