Maintenance

Each one of our experimental aircraft is unique, but they share many systems which need maintenance. It has to be done regularly to keep the aircraft airworthy, and it must be done correctly. Builders and owners share knowledge and tips for saving money in the process.

Tweaking a GlaStar/Sportsman Wing and Tail

GlaStar and Sportsman planes are remarkable in how well they fly and how consistently they come out especially considering they are usually built by...

Using an Engine Dehumidifier

On page 121 of the April 2007 issue of EAA’s Sport Aviation, there was an article titled “Power Plant Insurance,” by Dave Barker. It...

Sportsman Trim Saga & Safety-Trim

Until recently, I had been having problems with the electric pitch trim system in my Sportsman. It’s the standard electric setup using the Ray...

Service Bulletin for Dynon Heated Pitot Tubes

Applicability and Affected Equipment This bulletin affects the Dynon Avionics Heated AOA/Pitot Probe (p/n 100667-000). Description Dynon Avionics has received reports from pilots who have experienced degraded...
Cooling baffles

Baffles Reduce Cylinder Temperatures

This is a technical tip for the cylinder baffling modifications we’ve come up with for the IO-360 and IO-375 engines. The windows in front...
SilverHawk EX

Safety alert: Precision Airmotive Fuel Injection Servos

Attention All Owners of aircraft with Lycoming Fuel Injected Engines. Please read these safety alerts from Precision Airmotive. Hex plug 383493 coming loose from regulator cover. Service...
custom airplane jack

Gear Jack

I built this custom jack for changing the wheels and brakes on a GlaStar. I welded an extension on the end of a regular cheap auto...

Sensenich Fixed-Pitch Propeller Nomenclature and Repitching

Sensenich aluminum fixed-pitch propeller model designation system EXAMPLE..._70CM6S16-0-79_ _  Special letter prefix to identify accessories or composition of propeller. Current letters include 'S' for STC...

Service Bulletin 73 for GlaStar and Sportsman: Garmin GSA 28 Autopilot Servo

Glasair Aviation issued Service Bulletin 73 for all Sportsman and GlaStar Aircraft equipped with Garmin GSA 28 autopilot servos. From the Service Bulletin: Compliance Time: Before...

Marc’s Sportsman: The Trim Saga

We left the end of the annual with a note about problems I’ve been having with the electric pitch trim system in my Glastar...