The Issue Operators have reported partial debonding of trim tabs on a small number of main rotor blades. Trim tab assemblies on VHA main rotor blades consist of two identical trim tabs that are bonded . . . Keep Reading
The Issue A few operators of VHA 206L main rotor blades (P/N 20633000-101) have found cracks in the leading edge abrasion strips (either inboard or at the tip) within the first 1,000 hours of flight. . . . Keep Reading
The Issue A known characteristic of VHA’s first UH-1 tail rotor blade, part number 2042200-101, is paint cracking along the edge of the largest doubler ply in the doubler stack on both sides of the . . . Keep Reading
If your 206 or UH-1 is down for maintenance, now is the time to consider repainting your tail rotor blades. VHA recently switched to a new nano hybrid polyurethane (NHP) topcoat that provides increased durability, . . . Keep Reading
VHA engineering staff posted a major revision to the CSS-500-WC-6TG-10 Bearing Installation guide in March 2019. Revision D of this customer support specification includes revised procedures for the removal, installation, and inspection of the WC-6TG-10 . . . Keep Reading
Diagnostic Solutions International (DSI) is expanding its capabilities to support Van Horn Aviation (VHA) main rotor blades by offering VHA 206B and 206L main rotor blade track and balance software for the Honeywell Vibration Expert . . . Keep Reading
Keeping your composite rotor blades painted is crucial to protect carbon fibers from ultraviolet (UV) rays and other sources of damage. Missing or peeling paint can also cause a slight imbalance of the rotor blade, . . . Keep Reading
VHA blades are painted with a durable polyurethane coating at time of production. Our tail rotor blades use a single stage system, while the main rotor blades are coated with a two-stage basecoat and clearcoat . . . Keep Reading
Unlike our 206 tail rotor blade which fits on B3, L series, and OH-58 models, our 206 main rotor blades are designed specifically for each model (JetRanger or LongRanger; OH-58 is still in development). On . . . Keep Reading
VHA recently implemented design changes to its UH-1 tail rotor blade. Designated part number 2042200-103, the new blade features rounded doublers instead of the squared-off doublers used on the 2042200-101 blade. In every other way, . . . Keep Reading
Representatives from Diagnostic Solutions International (DSI) worked with VHA test engineers to create a set of paper charts that any operator can use to balance their VHA composite 206B main rotor blades. The set includes . . . Keep Reading
Our original 206B main rotor blade (P/N 20631000-101) features a single trim tab for easy track and balance. We ship each blade with the trim tab set at zero degrees, and many operators find that they . . . Keep Reading