We did most of the sump tank work while at the factory during our week of “Head Start” training, and even verified that it didn’t leak before we left (so if it leaks later I’ll be highly miffed. We also tapped the hardpoints at the factory. There are 2 connections in the pre-installed hard point for the wing tank connections, which are 1/4″ NPT. We installed two curved 1-1/4″x 1-1/4″ hardpoints at the very top of the sump tank, one for the vent line, and the other for a fuel return in the event we decide later to use the continental engine. On the front bottom we installed 1 hardpoint for the engine supply, and one on the underside for the drain. Finally we installed on hardpoint 1-1/2″ down the front face for the low fuel warning sensor. Each hardpoint is tapped with the appropriate sized NPT, radiused with Microglass, and covered with 2 ply of BID.

Posted By: Brett Ferrell
Wednesday July 10th, 2002 at 6:12 PM

Categories: Strakes
Tags: Building Fuselage Strakes

Please Login to Comment.