BT-67 TAILSTAND – Basler Turbo Conversions BT-67 / DC-3 Metal Tailstand
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The Basler BT-67 Tailstand is a mission-critical Ground Support Equipment (GSE) component specifically engineered for the unique structural requirements of the Basler BT-67 (a modernized, turboprop conversion of the Douglas DC-3). Due to the tail-dragger configuration of the airframe, the center of gravity (CG) is inherently biased toward the aft section when the aircraft is static. The BT-67 Tailstand serves as a "fail-safe" structural column, preventing the aircraft from tipping onto its empennage during critical maintenance operations, cargo loading, or engine removals.
Precision-manufactured to interface with the factory-designated jack point under the aft fuselage, this stand is constructed from high-yield structural steel to handle the dynamic load shifts associated with turboprop conversions. Unlike standard DC-3 stands, the Basler variant is optimized for the increased weights and altered balance profiles of the Pratt & Whitney PT6A-67R powered airframes. It provides a rigid, non-compressible support path that protects the skin and internal bulkheads from deformation during heavy maintenance cycles.
Key Features
Load-Balanced Vertical Column: Designed to support the specific aft-limit CG of a fully-loaded or "empty-shell" BT-67, ensuring airframe stability during weight-and-balance shifts.
Heavy-Duty Tubular Steel Construction: Utilizes high-strength structural tubing with continuous-bead MIG welding for maximum rigidity and resistance to compressive buckling.
Contoured Interface Pad: Features a specialized cradle or pin (depending on serial number) designed to seat perfectly within the aft jacking socket, distributing pressure evenly across the internal reinforced frame.
Wide-Aperture Base: The tripod or "H-frame" base is engineered to minimize floor PSI loading while preventing lateral "walking" during high-wind ramp operations.
Corrosion-Resistant Industrial Finish: Coated in high-visibility safety yellow or zinc-chromate primer with a powder-coat topstitch to withstand hydraulic fluids, de-icing agents, and extreme arctic or tropical environments where BT-67s typically operate.
Technical Specifications
Part Number: BT-67 TAILSTAND
Manufacturer: Basler Turbo Conversions (or Licensed GSE Affiliate)
Component Type: Aft Airframe Stabilization Stand
Material: Structural Carbon Steel (A36 or 1020 equivalent)
Height: Fixed or Adjustable (Standard height optimized for BT-67 main gear extension)
Weight Capacity: Engineered for the maximum aft-limit reaction force of the BT-67 airframe.
Finish: High-Visibility Powder Coat
Compatibility: Douglas DC-3, C-47, and Basler BT-67 airframes.
Aircraft Compatibility
Basler BT-67: All configurations (Cargo, Passenger, Research, and Gunship).
Douglas DC-3 / C-47: Standard radial-engine variants.
Lisunov Li-2: (Verification of jacking socket dimensions required via IPC).
Note: The Basler BT-67 Maintenance Manual (AMM) is the final authority for tailstand placement and weight limitations during loading.
Applications
The BT-67 Tailstand is mandatory for Static Airframe Stabilization. Its use is required during:
Cargo Loading/Unloading: To prevent the aircraft from "tail-tipping" as heavy pallets move aft of the main gear.
Engine Maintenance: To counteract the significant CG shift when a PT6A engine or Hartzell propeller is removed from the forward nacelles.
Aft Fuselage Inspection: Providing a secondary safety point while technicians are working in the tail cone or on the horizontal stabilizers.
Why Choose the BT-67 Tailstand?
For BT-67 operators, using a generic or "home-built" stand introduces the risk of point-loading failure. The Basler-specific stand is designed with the exact height and load-path geometry to match the reinforced sections of the conversion's airframe. Failure to use a certified tailstand during loading can result in catastrophic damage to the tail wheel assembly, the vertical fin, and the primary fuselage longerons.
The engineering principle of the BT-67 Tailstand revolves around maintaining the Static Longitudinal Stability of a tail-wheel aircraft. In a "tail-dragger," the CG is located behind the main landing gear but forward of the tail wheel. Any significant removal of weight from the nose (e.g., engine removal) or addition of weight to the aft (e.g., cargo) moves the CG aft of the main gear's vertical axis. The tailstand acts as a redundant reaction member, creating a mechanical stop that prevents the airframe from rotating around the main gear's pivot point. The stand is designed to handle axial compression without undergoing elastic deformation, ensuring that the airframe remains in a level or slightly nose-down attitude even under unfavorable loading conditions.
Note: This is a structural support component. Before use, ensure the ground surface is level and capable of supporting the concentrated load. Never use a tailstand as a primary jack to lift the aircraft; it is designed for stabilization only. Installation must be performed by a certified mechanic or trained ground crew in accordance with the Basler BT-67 Load & Trim Manual.
Documentation
No public-facing OEM engineering drawings are available; refer to the Basler BT-67 Component Maintenance Manual (CMM).