I have a header tank only and i cant see any changes in pitch that i have noticed after a long flight i think i may add 6 gals and that's it you don't need it with vw. read below by dan deal
You have probably already decided to install wing tanks since most of the KRs now built do have them. However, I have found in many hours of KR flying and many cross country trips that about three hours is all I can stand to sit in a KR. Since most of the VW engines burn between 4 to 5 gallons per hour, this indicates that 16 gallons would easily go the 3 hours and have some reserve. Therefore, it is my opinion that if you have around 15 to 16 gallons in the main tank, that is enough and would not warrant the trouble of installing wing tanks. My own N4DD has only 13 5. gallons in the nose. I found that I would often run about 30 minutes short of where I wanted to go. When I installed the wing skins on N4DD, I installed the tank from the front spar to the rear spar and between the first two ribs. This gave me 15 gallons per side; this is not needed. Since I usually only put 6 to 8 gallons in these tanks, the constant sloshing from front to rear is continually changing the C.G. and requires constant attention. Please don?t make the same mistake I did. mac n1055a
