Decided to cut down the header tank. It just didn't fit well, and seemed too large/heavy for it's mounting location. New total length is just shy of 19 inches with 8 inches in diameter.

Volume of a cylinder = 2 x pi x R x length, so 2 x4 x pi x 18= 452.38 cubic inches/ 231 (cu in per gallon)= 1.96 gallons.

When my warning light comes on, I will have one…

My Favorite Passenger

1 3/4" spacers for the header tank. Made from all the bits and scraps of 6061 from building the aircraft. Poured round ingots in greensand and machined. Probably 6061-T0 , but acceptable as spacers.

Installation of low fuel warning indicator in header tank. I incorporated a baffle "box" around the sensor in the hopes of eliminating the low fuel light flicker seen here:…

1/8" steel brackets were supplied with my header tank. They weighed almost a pound each( 15.4 oz). Both brackets modified with stainless band clamps weigh in under a pound(13.6…

Dynon remote magnetometer installed in upper skin directly behind aft baggage wall. Used all aluminum Huck rivets for installation to avoid errant fluxes.

Dome light from an old Plymouth Arrow pickup truck. Super light....

5/16" toilet seat bolt drilled thru. Ran a die nut and threaded shank to head. Turned down end for hose barb.cost = $2.37, and I have a spare bolt!

Engine temp installed to check the thrust angle.

I connected via a coax balun as found on "aeroelectric.com", secured to the rudder spar. Downside of antenna in rudder is coax has to flex when rudder moves.

Aerials made from radio shack cb antenna silver brazed into drilled 1/4 stainless bolts. Total aerial length = 25" with 1" pigtails from balun. Total =26" or 1/4…