Stoddard-Hamilton Aircraft SH-4 GlaStar

Fixed Wing Single Engine

By AviatorDB Data Bureau ·

Stoddard-Hamilton Aircraft SH-4 GlaStar — general aviation

Overview

The Stoddard-Hamilton SH-4 GlaStar revolutionized the homebuilt aircraft market as an affordable utility kitplane that combined short-field capability with respectable cross-country performance.

Aircraft Information

ICAO Code
GLST
Manufacturer
Stoddard-Hamilton Aircraft
Model
SH-4 GlaStar
Aircraft Type
Fixed Wing Single Engine
Primary Role
General Aviation

Technical Data

Engine Type
Inline
Engine Model
IO-240/O-320/O-360
Production Years
1995-2005
Units Produced
300
First Flight
1994-11-01
Notable Operators
EAA Young Eagles Program

The Stoddard-Hamilton SH-4 GlaStar revolutionized the homebuilt aircraft market as an affordable utility kitplane that combined short-field capability with respectable cross-country performance. First flown in November 1994, it was a high-wing, single-engine monoplane that seated two occupants side-by-side with a 200-pound baggage capacity. With a 35-foot wingspan and powered by engines ranging from 125 to 180 horsepower, approximately 300 aircraft were completed by 2004. The aircraft was manufactured by Stoddard-Hamilton Aircraft, later absorbed by Glasair Aviation.

Market Domination and Service History

The GlaStar captured the general aviation market immediately upon its introduction, dominating aviation press coverage in 1995 and becoming the highest-selling kitplane of its era. Even before the prototype's first flight, 100 builders had placed orders for kits, demonstrating unprecedented market demand. The first customer-built GlaStar flew after only three months of construction, validating the design's promise of rapid assembly.

In 1996, the Experimental Aircraft Association selected the GlaStar for its prestigious Young Eagles program, beginning construction in March and completing the aircraft by May. This endorsement further cemented the type's reputation for reliability and ease of construction. The aircraft served as a ambassador for general aviation, introducing countless young people to flight.

The Manufacturer's Strategic Pivot

Stoddard-Hamilton Aircraft was founded on the revolutionary success of the original Glasair line, which introduced the world's first pre-molded composite kitplane in 1980. Throughout the 1980s, the company engaged in intense competition with Lancair, producing high-performance models including the Glasair I, II, and III series. However, by the early 1990s, company leadership recognized the need for a different market approach.

The GlaStar represented a complete strategic retooling for Stoddard-Hamilton, shifting from exotic high-performance aircraft to practical utility designs. This pivot proved prescient, as the utility market proved nearly as numerous as the speed-focused segment while offering broader appeal to recreational pilots. Production continued through approximately 2005, when the design was superseded by the larger Glasair Sportsman 2+2. Glasair Aviation eventually absorbed the product line and continues supporting the type today.

Design Innovation and Engineering

Tom Hamilton led the engineering team that developed the GlaStar around four core parameters: low cost, minimal building time, light weight, and strong performance. The design team included Ted and Tom Setzer and Bud Nelson, working in a modest building at Arlington Airport. Ted Setzer performed most of the hands-on construction of the prototype, registered as N824G.

The aircraft incorporated several innovative features that accelerated construction. Wing skins came pre-drilled along rib locations, while spars and ribs were match-drilled to facilitate Cleco pre-assembly. This approach dramatically reduced the traditional 2,000-plus hour construction time typical of homebuilt aircraft to the factory's initial estimate of 1,200 hours.

A unique feature was the convertible landing gear system, allowing rapid conversion between tricycle and conventional taildragger configurations. This versatility appealed to pilots operating from both improved airports and backcountry strips. The 44-inch cockpit width provided generous accommodation for two occupants, while the 200-pound baggage capacity exceeded most comparable aircraft.

Engine Options and Performance

The original prototype flew with a 125-horsepower Continental IO-240 engine, a fuel-injected, air-cooled, four-cylinder powerplant. Later variants incorporated the 160-horsepower Lycoming O-320 with constant-speed propeller capability, while some builders opted for the 180-horsepower O-360 for enhanced performance.

These proven powerplants delivered the design's promise of combining excellent short-field capability with respectable cross-country speeds. The aircraft's docile slow-speed handling characteristics made it accessible to pilots of varying experience levels, while its prodigious payload capacity satisfied practical utility requirements.

Versatility and Special Capabilities

In 1997, the prototype underwent extensive testing on floats, equipped with both Aerocet 2200 straight floats and Wipline 2100 amphibious floats. Test results exceeded all expectations, demonstrating stunning water takeoff performance and exceptional flight characteristics on floats. This testing validated the basic airframe's strength and versatility for specialized operations.

The aircraft's high-wing configuration and robust landing gear made it particularly suitable for backcountry operations, while its aluminum wing construction with welded steel tube fuselage provided durability for rough-field use. The NASA GA(W)-2 airfoil at the wing root transitioning to a modified version at the tip optimized both low-speed handling and cruise efficiency.

Safety Record and Service Issues

In 1996, a service recall addressed control yoke assembly issues in select GlaStar kits, demonstrating the manufacturer's proactive approach to safety concerns. However, in 1999, one aircraft not covered by the recall suffered a fatal accident killing both occupants, highlighting the critical importance of proper construction techniques in homebuilt aircraft.

Legacy and Preservation

Production concluded around 2005 with approximately 300 aircraft completed, establishing the GlaStar as one of the most successful utility kitplanes of the 1990s. The original prototype, N824G, was donated to the EAA Foundation in 1999 and now resides in the EAA Museum collection at Pioneer Airport, preserving this significant design for future generations.

The GlaStar proved that practical utility aircraft could achieve commercial success in the homebuilt market, influencing subsequent designs throughout the industry. Its emphasis on construction simplicity, operational versatility, and balanced performance characteristics established benchmarks that continue influencing modern kitplane development.

Operators

EAA Young Eagles Program

Surviving aircraft

Notable museum examples:

  • EAA Museum, Oshkosh, Wisconsin