PT Model Composite Control Horn, Type 3
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PT Model Type 3 Composite Control Horn – 1.5" (38mm) Fiberglass (5 Pack)
The PT Model Type 3 Composite Control Horn is a lightweight fiberglass control horn designed for precise linkage geometry and clean installations. Unlike standard flat horns, the Type 3 stepped design allows for improved pushrod alignment and better mechanical advantage on select control surface setups.
Key Features
- Stepped Type 3 design for improved linkage alignment
- Fiberglass composite construction – lightweight and rigid
- Low-profile installation for clean builds
- Ideal for sport, pattern, and mid-size RC aircraft
- 5 control horns per pack
Dimensions
Height: 1.5" (38mm) | Base Width: 7/8" (22.2mm)
Specifications
| Brand | PT Model |
| Type | Type 3 (Stepped Composite Horn) |
| Height | 1.5" (38mm) |
| Base Width | 7/8" (22.2mm) |
| Material | Fiberglass Composite (FRP) |
| Quantity | 5 Control Horns |
Why Choose Type 3?
- Offsets linkage connection point for better geometry in tight spaces
- Helps reduce binding in non-linear linkage setups
- Improves pushrod alignment when servo and surface are not perfectly in line
- Great for scale builds and internal linkage configurations
Installation Diagram
The stepped horn design allows better alignment between pushrod and control surface, reducing side-load and improving precision.
Installation Guide
- Mark location: Align horn pivot point with hinge line
- Cut slot: Create a clean slot for the composite base
- Test fit: Ensure horn is square and aligned
- Glue: Use epoxy for a secure bond
- Attach linkage: Connect pushrod or ball link
- Check movement: Ensure smooth, bind-free operation
Setup Tips
- Use Type 3 horns when straight-line linkage is not possible
- Align linkage to avoid side pressure on the horn
- Reinforce high-load surfaces if needed
- Ideal for 20cc–60cc aircraft and similar setups
Package Includes
- 5 × PT Model Type 3 Composite Control Horns
Required to Complete
- Epoxy adhesive
- Pushrods / clevis / ball links
- Basic hobby tools
Control Horn Type Guide (Type 1 vs Type 2 vs Type 3)
Choosing the correct control horn style helps improve linkage geometry, reduce binding, and ensure smooth, precise control surface movement.
| Type | Shape | Best Use | When to Choose |
|---|---|---|---|
| Type 1 | Flat / Straight | Basic linkage setups | Use when your servo and control surface are already well aligned. Best for simple, straight pushrod installations. |
| Type 2 | Curved / Swept | Smooth linkage geometry | Use when your pushrod is slightly off-angle. The curved shape helps reduce binding and allows smoother control movement. |
| Type 3 | Stepped / Offset | Offset linkage setups | Use when you need to shift the linkage position. Ideal for tight installs, scale builds, or when the servo and surface are not in line. |
• Straight setup → Type 1
• Slight angle → Type 2
• Offset / tight geometry → Type 3
