Design Philosophy and Development
The CA-4 Comp Air 4 emerged from Ron Lueck's vision at Aerocomp Inc. to create a utility aircraft that could adapt to diverse operational requirements. Drawing on the company's expertise in composite seaplane floats, Lueck's design team developed an aircraft that could seamlessly transition between tailwheel, tricycle, float, and amphibious configurations. The prototype took its maiden flight on April 3, 1995, initially powered by a 110-horsepower engine, though production models would standardize on the more powerful 180-horsepower Lycoming O-360-A1A.
The aircraft made its public debut at Sun 'n Fun 1995, where it earned the nickname "Comp Monster" for its robust construction and versatility. The high-wing design provided excellent stability and ground clearance for various landing gear configurations, while the composite construction offered both strength and weight savings compared to traditional aluminum structures.
The Manufacturer's Evolution
Aerocomp Inc., founded by Ron Lueck in Titusville and later Merritt Island, Florida, began its aviation journey manufacturing composite floats for seaplanes. This specialized expertise in composite materials directly influenced the CA-4's construction methods. During the late 1990s and early 2000s, the company rebranded as Comp Air Inc., reflecting its expanded focus on complete aircraft rather than components.
Under Lueck's continued leadership as president, Comp Air Inc. used the CA-4's success as a stepping stone to larger, more ambitious projects. Between 2004 and 2009, the company developed the Comp Air 7, Comp Air 8, and even ventured into experimental jets. The company also established Forward.Vision, a subsidiary specializing in infrared systems, demonstrating the diversification that characterized many small aircraft manufacturers of the era.
Technical Specifications and Performance
The production CA-4 measured 26 feet in length with a wingspan of 37 feet, 7 inches, providing a wing area of 212 square feet. The aircraft's empty weight of 1,390 pounds allowed for a useful load substantial enough to carry three passengers plus baggage, with a maximum takeoff weight of 2,850 pounds. The Lycoming O-360-A1A engine, a proven four-cylinder opposed design that had been in continuous production since 1955, provided reliable power for the aircraft's intended utility roles.
Performance figures reflected the aircraft's utility mission profile. The CA-4 achieved a maximum speed of 149 mph and cruised at 130 mph at 75 percent power, while maintaining an impressively low stall speed of just 39 mph. This combination of performance characteristics made the aircraft suitable for short-field operations. With a service ceiling of 16,000 feet and a rate of climb of 1,450 feet per minute, the CA-4 demonstrated respectable altitude capabilities for a utility aircraft. The 759-mile range provided sufficient endurance for cross-country flights while maintaining reserves.
Production and Market Impact
From 1995 through the early 2000s, approximately 60 CA-4 kits found their way to builders across the United States. The aircraft attracted homebuilders seeking a robust platform that could handle diverse mission requirements, from recreational flying to utility transport. Examples like N250P, completed in 1998 in Florida, represented the typical owner-operator profile that characterized the kit aircraft market.
The modular design approach pioneered by the CA-4 influenced subsequent kit aircraft development across the industry. By allowing builders to select their preferred landing gear configuration and engine options within specified parameters, Aerocomp demonstrated that kit aircraft could offer airline-level versatility in general aviation packages.
Operational Legacy
While never achieving the production numbers of more mainstream kit aircraft, the CA-4 served its intended market effectively. Private owners appreciated the aircraft's rugged construction and operational flexibility, particularly those requiring an aircraft capable of accessing remote strips or water operations. The high-wing configuration provided excellent visibility for utility operations, while the generous cabin space accommodated both passengers and cargo.
By 2022, the CA-4 was no longer listed among Comp Air Inc.'s active production offerings, though the company continued operations with other models like the Comp Air 12. The discontinuation reflected market evolution toward more modern designs rather than any fundamental shortcoming in the CA-4's concept.
Current Status
While exact numbers of airworthy CA-4 aircraft remain undocumented, several examples continued flying well into the 2000s based on FAA registration data. The aircraft's composite construction and proven Lycoming powerplant suggest that properly maintained examples should provide decades of service life. Though never achieving museum status or cultural significance beyond aviation circles, the CA-4 represents an important chapter in 1990s homebuilt aircraft development, demonstrating how specialized manufacturers could successfully serve niche markets with innovative design approaches.