Richard Stubbs Secures ALTO Southern African Agency
Altitude Adjustment Aviation announces exclusive representation of Czech-manufactured ALTO aircraft in South Africa, bringing world-class LSA options to the local market.
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Award-Winning Importer Expands Portfolio
Richard Stubbs has established himself as a premier aircraft importer to the South African market. His latest undertaking adds exceptional choice for aircraft buyers seeking quality and value.
In 2012, Richard won the MISASA Shootout Award for "Best of the Best" aircraft at Tedderfield with his Topaz high-wing composite. South African pilots voted overwhelmingly for an aircraft that had remained largely under the radar without costly marketing campaigns.
The ALTO now complements his stable of imported full composite high-wing Polish aircraft by adding an extremely capable all-metal low-wing alternative to the lineup.
Key Achievements
  • 2012 MISASA Shootout Winner
  • Established reputation for transparency
  • Competitive agency pricing
  • Multiple aircraft imports
The ALTO Advantage
All-Metal Construction
Durable aluminum riveted design with composite elements for optimal strength-to-weight ratio
Exceptional Value
Lands at approximately 75% of local retail price for comparable aircraft in any state of trim
Proven Design
Satisfies difficult European ultralight requirements and U.S. LSA standards
Build Options
Available in 50%, 75%, or 100% kit configurations with factory support
First ALTO TG Arrives in South Africa
The first all-metal ALTO TG has arrived as a 100% kit and will be prepared for flight by Kevin Hopper of Skyworx Aviation. This comprehensive kit requires only engine and propeller installation plus instrumentation and upholstery.
The build process is straightforward and achievable over a conservative estimated 200-hour build time. This makes the ALTO accessible to builders of varying experience levels while maintaining professional quality standards.
Kit Configuration Options
01
100% Kit
Complete airframe requiring only engine, propeller, instruments, and upholstery installation. Estimated 200-hour build time.
02
75% Kit
Factory-prepared option with more components pre-assembled, reducing builder workload while maintaining customization options.
03
50% Kit
Extensive factory preparation requiring moderate builder involvement, ideal for those wanting hands-on experience with less time commitment.
04
Ready to Fly
Factory-prepared aircraft pending SACAA certification, offering immediate Authority to Fly upon approval.
Exceptional Value Proposition
Even with current exchange rates, Richard Stubbs is confident the ALTO will land at approximately 75% of the local retail price for comparable aircraft in any state of trim. This represents considerable savings for an LSA type that gives nothing away in performance, comfort, usable weight, range, or quality.
Richard maintains his established reputation for pricing transparency by declaring his highly competitive agency fee, ensuring customers receive the best possible deal in an increasingly competitive market. Factory-fitted additional cost options are available at incredible prices.

Competitive Advantage: Czech designed and built aircraft set the standard of excellence worldwide, and the ALTO continues this tradition of quality and value.
ALTO TG LSA: Designed for Excellence
LSA Class Leader
Designed for the increasingly popular 600kg MTOW LSA class, the ALTO's construction combines conventional all-metal low-wing monoplane design with strategic composite elements.
Composite components include top and bottom engine cowls, main landing gear, wheel spats, and spinner. This extremely light but durable construction method enables class-leading usable weight considerations.
Performance & Safety
Impressive performance and totally predictable handling qualities suit both recreational pilots and instructor training environments.
For additional safety, an optional factory-fitted ballistic parachute is available, tested and verified to ensure it actually works when needed.
Power and Propulsion Options
Rotax 912 ULS
Standard 100hp motor with universally respected 2000-hour TBO, matched to FITI 3-blade composite ground adjustable propeller
Jabiru 3300
Optional 120hp six-cylinder engine providing additional power for enhanced performance characteristics
Rotax 912iS
New fuel-injected engine option available, though factory suggests waiting until Rotax resolves initial product launch issues
Only the customer's budget limits specific installed options in terms of delivered specification levels. Each engine choice offers distinct advantages for different mission profiles.
Wing Design and Construction
Structural Excellence
The rectangular wing features monospar dural aluminum riveted construction with an auxiliary spar and composite tips. This proven design provides exceptional strength while maintaining light weight.
Wings include slotted flaps and ailerons, incorporating two integral, lockable fuel tanks for secure fuel storage and balanced weight distribution.
Attachment System
The wing-body attachment forms a wing center section firmly attached to the fuselage. The wing's main spar connects to the center section by bolts.
The rear auxiliary spar attaches by means of a hinge, allowing for efficient assembly and maintenance access when required.
Fuselage and Tail Construction
Fuselage Section
Semi-monocoque riveted construction reinforced by diagonal stiffeners for optimal strength and rigidity
Tail Section
All-metal riveted construction of standard configuration, providing reliable control authority
Flying Controls System
Primary Controls
  • Push-pull tubes and cables connect control surfaces
  • Rudder input linked to nose wheel for ground steering
  • Separate pilot and passenger control sticks
  • Thumb-operated PTT switch on hand grip
Secondary Systems
Electrically driven flaps controlled using the highly capable panel-mounted "flybox" operating system. Elevator trim conveniently situated in center tunnel between pilot and passenger with trim position indicator on panel.
Main gear hydraulic brakes feature parking lock function, activated by central lever accessible from either seat for pilot or passenger operation.
Landing Gear Innovation
The main wheels attach to all-terrain flexible composite legs, providing excellent shock absorption and durability across various landing surfaces. This innovative design reduces maintenance requirements while delivering smooth landings.
The composite construction offers superior flexibility compared to traditional steel spring gear, adapting to rough field conditions while maintaining structural integrity and long service life.
Spacious Cockpit Design
Canopy Access
Unique forward-sliding lockable canopy formed using high-quality Plexiglass. Tinted canopy optional.
Interior Space
Wide 110cm cockpit effortlessly accessed without standing on seats. Multiple upholstery options available.
The spacious cockpit accommodates pilots of various sizes comfortably. Several fabric or leather upholstery trim options allow personalization. Panel dimensions support any type of GPS and/or autopilot system integration.
Technical Specifications Overview
600
MTOW (kg)
Maximum takeoff weight for LSA class
285
Empty Weight (kg)
Exceptionally light airframe
315
Useful Load (kg)
Class-leading payload capacity
110
Fuel Capacity (L)
Two 55-liter lockable wing tanks
Dimensions and Configuration
Length
6.15 meters
Optimal fuselage length for performance and handling
Height
2.25 meters
Compact profile for hangar storage
Wingspan
8.20 meters
Efficient wing design for excellent lift

Cockpit Width: Generous 110cm provides comfortable side-by-side seating for two occupants with excellent elbow room.
Performance Capabilities
Cruise Speed
112 knots @ 5200 RPM
Efficient cruise performance for cross-country flight
Never Exceed
145 knots VNE
Safe speed envelope with comfortable margin
Stall Speed
36 knots VSO
Gentle stall characteristics for safety
Climb Rate
1250 ft/min at sea level
Strong climb performance for safety and efficiency
Takeoff and Landing Performance
Exceptional short-field performance makes the ALTO ideal for operations from smaller airstrips and grass fields. The 90-meter takeoff distance and 150-meter landing distance provide operational flexibility and safety margins.
These impressive figures allow access to remote locations and private strips that longer-runway aircraft cannot utilize, expanding your flying possibilities significantly.
Range and Endurance
Impressive Range
1,215 kilometers with reserve
The ALTO's 110-liter fuel capacity (two 55-liter lockable wing tanks totaling 79kg) provides exceptional range for an LSA aircraft.
Mission Flexibility
This range capability enables true cross-country flying, allowing pilots to plan extended trips without frequent fuel stops. Perfect for touring and exploration.
Structural Strength
+4
Positive G-Factor
Robust structure handles aerobatic-level loads
-2
Negative G-Factor
Certified for negative load conditions
The ALTO's +4/-2 G-factor rating demonstrates exceptional structural integrity, exceeding typical LSA requirements. This robust construction provides confidence in turbulent conditions and ensures long-term durability.
Build Process Overview
The ALTO build process follows a logical sequence, with comprehensive factory documentation and support. Each stage builds upon the previous, ensuring quality and proper assembly techniques throughout.
Builders receive detailed instructions, technical support, and access to online resources including build photos and videos. The factory's experience with hundreds of completed aircraft ensures proven assembly methods.
Stage 1: Getting Started
The build begins with careful unpacking and inventory of all components. Factory documentation provides comprehensive parts lists and initial assembly guidance.
Builders should prepare adequate workspace with proper lighting, ventilation, and tool access. Organization at this stage prevents issues later in the build process.
Initial steps include familiarization with construction techniques, riveting practice, and understanding the assembly sequence that will guide the entire project.
Essential Preparations
  • Workspace setup
  • Tool acquisition
  • Parts inventory
  • Documentation review
  • Technique practice
Stage 2: Tail Construction
The tail build involves constructing the sides and bottom separately, then riveting them together. This modular approach ensures accuracy and allows for quality control at each step.
Careful attention to alignment and rivet spacing creates a strong, lightweight structure. The tail plan provides detailed measurements and assembly sequences to guide builders through this critical component.
Stage 3: Tow Hook and Fin Assembly
The tow hook installation and fin assembly require precision alignment to ensure proper aerodynamic function. These components integrate with the tail structure to provide directional stability.
Factory specifications detail exact positioning and attachment methods. Proper installation at this stage prevents alignment issues later in the build.
Stage 4: Center Section Construction
The center section forms the structural heart of the aircraft, connecting wings to fuselage and providing main landing gear attachment points. This critical component requires careful construction and precise alignment.
Multiple assembly steps ensure proper geometry and strength. The center section must be square and true, as it determines the aircraft's overall alignment and handling characteristics.
Stage 5: Seat Area Development
Structural Framework
Seat area construction integrates with fuselage structure, providing occupant support and safety.
Comfort Features
Multiple upholstery options available in fabric or leather for personalized comfort and style.
Stage 6: Rudder Assembly
Control Surface
The rudder provides directional control and must be built to precise specifications for proper aerodynamic function.
Careful construction ensures smooth operation and proper balance throughout the flight envelope.
Stage 7: Fuselage Construction
Fuselage construction represents a major milestone in the build process. The semi-monocoque structure takes shape as panels are riveted together with diagonal stiffeners providing reinforcement.
This stage requires attention to detail and proper riveting technique. The fuselage must maintain precise dimensions and alignment to ensure proper fit of all subsequent components including wings, tail, and engine mount.
Stage 8: Foot Step Installation
The foot step provides convenient cockpit access and must be securely attached to support pilot and passenger weight during entry and exit. Proper installation ensures safety and longevity.
Metal components are carefully measured, clamped, and secured according to factory specifications. This seemingly simple component plays an important role in daily aircraft operations.
Stage 9: Flap Construction
Flaps are critical control surfaces that increase lift and drag for takeoff and landing. Construction requires precision to ensure proper aerodynamic shape and smooth operation.
The slotted flap design provides excellent low-speed performance. Careful assembly ensures reliable operation throughout the aircraft's service life.
Flap Features
  • Slotted design for efficiency
  • Electric actuation system
  • Flybox control integration
  • Smooth operation
Stage 10: Left Wing Assembly
Wing construction showcases the ALTO's rectangular monospar design with auxiliary spar. Metal frames and ribs are assembled with precision to create the aerodynamic shape that generates lift.
The left wing assembly process is repeated for the right wing, ensuring symmetry and proper balance. Integral fuel tanks are incorporated during construction, with careful attention to sealing and leak prevention.
Stage 11: Canopy Installation
The unique forward-sliding canopy is formed from high-quality Plexiglass, providing excellent visibility and convenient access. Installation requires careful fitting to ensure smooth operation and proper sealing.
The canopy's sliding mechanism eliminates the need to step on seats during entry and exit, a significant convenience and safety feature. Optional tinted canopy provides sun protection for extended flights.
Stage 12: Engine Installation
Engine installation represents a critical phase where powerplant, mount, and accessories come together. The Rotax 912 ULS or Jabiru 3300 engine is carefully positioned and secured to the engine mount.
All connections including fuel lines, electrical systems, and control cables must be properly routed and secured. Attention to detail ensures reliable operation and ease of maintenance.
Installation Steps
  1. Engine mount attachment
  1. Engine positioning
  1. Control cable routing
  1. Fuel system connection
  1. Electrical integration
  1. Cowling installation
Stage 13: Panel and Instrumentation
The instrument panel accommodates a wide range of avionics and instrumentation options. Panel dimensions support any type of GPS and autopilot system, allowing builders to customize according to mission requirements and budget.
Modern glass cockpit displays or traditional analog instruments can be installed. The flybox operating system integrates flap control and other functions into a sophisticated, user-friendly interface.
Stage 14: Electrical Wiring
Electrical system installation requires careful planning and execution. Wiring harnesses must be properly routed, secured, and protected from chafing. All connections must be reliable and accessible for maintenance.
The system includes engine electrical, avionics power, lighting, and control systems. Proper wire management ensures clean installation and troubleshooting ease. Circuit protection and proper grounding are essential for safety and reliability.
Stage 15: Aileron Installation
Ailerons provide roll control and must be precisely constructed and installed for proper aircraft handling. These control surfaces attach to the wing trailing edge with hinges that allow smooth, free movement.
Control cables connect ailerons to the cockpit control sticks, transmitting pilot inputs. Proper rigging ensures coordinated control response and balanced flight characteristics throughout the speed range.
Critical Checks
  • Hinge alignment
  • Cable tension
  • Control throw limits
  • Surface balance
  • Free movement
Stage 16: Painting Process Begins
Painting transforms the aircraft from bare metal to finished appearance. The process begins with thorough surface preparation including cleaning, priming, and sanding to ensure proper paint adhesion.
Multiple paint schemes are possible, from simple single colors to complex multi-color designs. Quality paint application protects the airframe from corrosion while providing attractive appearance that reflects owner personality and style.
Stage 17: Paint Application
Paint application requires controlled environment and proper technique. Fuselage, wings, and components receive multiple coats for durability and appearance. Blue paint shown demonstrates professional finish quality achievable with proper preparation and application.
Engine cowlings and other composite components also receive paint treatment. Attention to detail during painting ensures long-lasting, attractive finish that protects the aircraft and enhances resale value.
Build Resources and Support
Factory Documentation
Comprehensive build manuals with detailed instructions and specifications
Online Resources
Visit www.alto912.cz for more pictures and complete build story documentation
Technical Support
Factory and agency assistance available throughout build process
Builder Community
Connect with other ALTO builders for advice and shared experiences
ZU COOL: The First South African ALTO
ZU COOL represents the first ALTO TG in South Africa, showcasing the aircraft's capabilities in local conditions. This demonstrator aircraft is available for test flights in Johannesburg, allowing prospective buyers to experience the ALTO firsthand.
The white and red color scheme demonstrates the attractive appearance possible with quality paint application. ZU COOL serves as proof of concept for the ALTO's suitability to South African flying conditions and requirements.
Industry First: FlyCool Air Conditioning
Revolutionary Comfort
In a first expected to be a winner for all pilots but especially for Karoo farmers, you can now order your ALTO complete with a FlyCool air conditioner!
AAA now offers a lightweight, all-electric air conditioning system developed specifically for the expanding LSA market.
System Benefits
  • Maintenance-free operation
  • Hermetically-sealed design
  • Brushless DC motor/compressor
  • Lightweight construction
  • Ground pre-cooling capability
FlyCool System Components
Motor/Compressor
Maintenance-free, hermetically-sealed brushless DC motor/compressor unit providing reliable cooling performance
Condenser Assembly
Lightweight condenser assembly designed specifically for aircraft installation with minimal weight penalty
Evaporator Unit
Compact evaporator unit efficiently distributes cooled air throughout the cockpit for occupant comfort
FlyCool Performance Specifications
5500
Cooling Capacity
BTU/HR for effective cockpit temperature control
350
Airflow
CFM providing excellent air circulation
45
Current Draw
Less than 45 amps for efficient operation
10
System Weight
Only 10 kilograms total installation weight
FlyCool Power and Cooling Performance
Power Options
The AC system runs from either a 70-amp alternator specially designed to integrate well with the 912 Rotax engine, or from a 28 VDC ground power source for pre-cooling before flight.
This dual-power capability ensures cooling availability both on the ground and in flight, maximizing comfort throughout your flying experience.
Rapid Cooling
When ground pre-cooling, the system provides a 7°C cabin temperature drop in just 10 minutes, making hot-weather operations significantly more comfortable.
This rapid cooling capability means you can prepare the aircraft in comfort before departure, especially valuable during summer operations.
FlyCool Component Dimensions
Evaporator Unit
10" × 10" × 6"
Compact size fits easily in cockpit area without compromising space
Condenser/Compressor Assembly
14" × 11" × 6"
Efficient packaging allows installation in engine compartment area
The compact dimensions of both components ensure straightforward installation without significant impact on aircraft weight and balance or useful load capacity. At only 10kg total system weight, the comfort benefit far outweighs the minimal weight penalty.
Ideal for South African Conditions
The FlyCool air conditioning system is particularly valuable for South African flying conditions, where summer temperatures can make cockpits uncomfortably hot. Karoo farmers and pilots operating in hot regions will especially appreciate this comfort enhancement.
Ground pre-cooling capability means you can prepare the aircraft in comfort before departure, while in-flight cooling ensures pleasant conditions throughout your journey. This system transforms summer flying from an endurance test into an enjoyable experience.

Winner for All: This industry-first offering is expected to be a winner for all pilots, setting a new standard for LSA comfort in hot climates.
Test Flight Opportunities
Experience ZU COOL
ZU COOL is available for test flights in Johannesburg, allowing prospective buyers to experience the ALTO's performance and handling firsthand.
Schedule your test flight to discover why the ALTO represents exceptional value in the LSA market.
Why Choose the ALTO?
Proven Design
Czech engineering excellence meeting both European ultralight and U.S. LSA standards with hundreds of aircraft flying worldwide
Exceptional Value
Lands at approximately 75% of comparable aircraft prices with transparent agency fees and competitive factory options
Outstanding Performance
Class-leading useful load, impressive range, strong climb rate, and excellent short-field capabilities
Build Flexibility
Multiple kit options from 50% to ready-to-fly, accommodating different builder experience levels and time availability
Safety Features
Optional ballistic parachute, robust +4/-2 G structure, predictable handling, and excellent visibility
Comfort Options
Spacious 110cm cockpit, multiple upholstery choices, and optional air conditioning for hot-weather operations
Comprehensive Support Network
Factory Support
Czech manufacturer provides comprehensive documentation, technical assistance, and quality components
Local Agency
Richard Stubbs and AAA provide transparent pricing, import expertise, and ongoing customer support
Build Assistance
Kevin Hopper of Skyworx Aviation available for professional build support and technical guidance
Builder Community
Growing network of ALTO builders and owners sharing experiences and advice
Contact Information
Richard Stubbs
Altitude Adjustment Aviation
Mobile: 083 655 0355