The J.L. Osborne tip tanks, originally sold under the “Brittain” name, were offered for Navions as well as Bonanzas. The Navion’s unique factory fuel system had two 20-gallon wing tanks filled by a single port, with an optional aft-fuselage tank holding an extra 20 gallons. Without the rear tank option, the addition of 20 gallons per side with the Osborne tip tanks gave a very desirable increase in range. In addition, a 250-pound gross weight increase was part of the Osborne tanks’ approval for the older Navions. A total 108-gallon supply, including tip tanks, was available in the final Navion Rangemaster model.
Navion Fuel Systems
Key Takeaways:
- The J.L. Osborne (Brittain) tip tanks were offered for both Navions and Bonanzas, significantly increasing the range for Navions by adding 20 gallons per side.
- For older Navion models, the installation of Osborne tip tanks also included approval for a 250-pound gross weight increase.
- The final Navion Rangemaster model, when equipped with these tip tanks, boasted a total fuel capacity of 108 gallons.
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