Pilot logbook cover

LODA

Glasair Aviation announced recently that the company received a LODA (Letter of Deviation Authority) to conduct flight training in their experimental aircraft. A LODA authorizes...
Whirl Wind GA-200L

Propping Up Our Projects

Our bulk buy with Whirlwind Aviation (WWA) began in June 2013. We realized as a group that there were several builders who were shopping...
A GlaStar fuselage undergoing load testing at Glasair

GlaStar Cargo Door Update

Recently I have received several inquiries about the engineering of the aft baggage door for the GlaStar. I have responded that there will not...
Sportsman fuel sender unit

How Much Fuel Do We Have?

We occasionally get a sticky fuel sending unit and have come up with a few minor adjustments to the Stewart Warner fuel sending units...
New Sportsman tailwheel spring.

Tailwheel Springs

I’ve never been entirely satisfied with the way the tailwheel leaf springs are secured to the tail cone, especially when banging them off of...

Battery Backup

Two Weeks To Taxi Sportsman have been all built using one of two Odyssey motorcycle batteries. Most taildraggers were built using the PC 680...
Composite vortex generators made by Fibertech Composites. Photo: Zach Chase

Function of Delta-Wing Vortex Generators

Paul Robertson of Aeronautical Testing Services is the engineer Stoddard-Hamilton contracted in 1994 to conduct all the GlaStar developmental flight testing and configuration changes....
GlaStar enlarged cargo door modification

Large Baggage Door for the GlaStar

If you ever thought about installing a larger cargo door for your GlaStar, now is your chance to do it. When the Glasair factory was...
Figure 1. Schematic Diagram, Digital TDR Fuel Transfer Controller

Fuel Transfer Controller – Lower Cost Version

The fuel transfer controller in this article using an off-the-shelf Time Delay Relay (TDR) yields a simple, effective circuit for this critical function. But...
Glastar scissor jack

Lightweight Jack

In a GAOA newsletter a few years ago there were pictures and a description of an aluminum L-bracket that could be bolted on the...