Fuel Supply Hose
in General Tech Discussion
12 years ago
I am building an Aerospool Dynamic using the 912ULS. Fuel system assembly instructions are limited. I have a question about the fuel hose size supplying the fuel pump. The factory supply hose is 5/16" ID with an AN-6 female swivel for the firewall. I don't understand why this hose is 5/16" when the system is 1/4" prior to the firewall. The airplane uses 1/4" fuel hose from each tank to an Andair fuel selector which uses 1/8"NPT inlet fittings and then continues to a Facet fuel pump, also with 1/8" NPT fittings. Each tank is selectable. So, Why does the pump inlet hose jump to 5/16"? Fuel flow is only as good as the most restrictive flow. Will there be an issue if the fuel tubing is left at 1/4" to the firewall and then stays 1/4" to the pump? I would really appreciate the reasoning behind the jump up in fuel hose size.
Thanks.
Brad
Thanks.
Brad
