Adding weight to axles to help prevent capsize
This info straight from Ai search Adding weight (ballast) to a radio-controlled (RC) land yacht axle to avoid capsizing is a common, effective technique to lower the center of gravity and counteract sail force. The amount of weight depends heavily on the scale of your yacht, but generally, the goal is to create a heavy base to counteract wind pressure.
Recommended Ballast Guidelines
Performance Landsailers: In RC land sailing, ballast is often used to match the sail area, allowing the boat to carry more sail in stronger winds.
Proportion to Total Weight: For stability, the ballast weight should generally be a significant portion of the total weight, often up to 60% or more, depending on the design.
Specific Examples: For smaller, 3-wheeled RC projects, some enthusiasts use 40-50 grams of brass or lead weights to enhance stability, particularly adding weight directly to the rear axle to keep it on the ground.
"Butt" Weight (Simulated): A common analogy to full-size sailing is to add enough weight to simulate a human driver, which might be proportional to "40 pounds" in a very large (e.g., 6-foot) model scenario, but for smaller RC models, you should scale this down significantly, focusing on the weight-to-sail-area ratio.
Key Considerations for Adding Weight
Placement: The ballast should be added as low as possible on the rear axle to maximize stability.
Method: You can use self-adhesive chassis lead weights, lead tape, or metal plates (like from a craft box) cut to shape and attached with zip ties.
Too Much Weight: While more weight makes it more stable, excessive weight will slow down acceleration and decrease performance in light winds, as drag increases.
Alternative Stabilizers: Shorten the sail or reduce sail area if you are still over-pressed after adding weight.
Summary Recommendation
Start by adding 10-15% of your total boat weight in lead ballast to the rear axle, and increase it incrementally if the yacht still lifts the windward wheel too easily.
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