Quick answer

Order custom slotting for 6.0 to 11.4 inch phenolic airframes by adding the service and the airframe tube to your cart, then providing four details in the order notes: which tube to slot, slot length, slot width, and slot starting point.

Why choose custom slotting for large diameter airframes

Large diameter phenolic airframes (6.0 to 11.4 inches) are common in high power rockets where you need precise slots for rail buttons, altimeter ports, or ejection baffles. Drilling or cutting these slots by hand risks cracking the phenolic material or misaligning the slot, especially on tubes over 48 inches long. Professional slotting ensures clean edges and exact dimensions without damaging the tube.

What you need to know before ordering

The slotting service is a fee per slot, and you must add the corresponding airframe tube to your cart separately. The service covers tubes from 6.0 to 11.4 inches in diameter and up to 48 inches long. You will need to specify four details in the order notes: which tube to slot (if ordering multiple), the slot length, the slot width, and the slot starting point from the end of the tube.

How to order custom slotting for large diameter phenolic airframes

  1. Add the airframe tube to your cart: Select a phenolic airframe tube in the 6.0 to 11.4 inch diameter range. Make sure it is 48 inches or shorter. Do not add the slotting service yet. Common mistake: ordering the slotting service without a tube. The service is a fee only and requires a tube purchase.
  2. Add the slotting service to your cart: Search for "Custom Phenolic Airframe Slotting - 6.0 - 11.4" diameter" and add it to your cart. The price is per slot. If you need multiple slots, add the service multiple times or note the quantity in the order notes. Checkpoint: verify the slotting service matches your tube diameter range. The service is only valid for 6.0 to 11.4 inch tubes.
  3. Specify slot details in the order notes: In the order notes field, provide: 1) which tube to slot (if ordering multiple tubes), 2) the slot length (in inches), 3) the slot width from the available options (0.062", 0.093", 0.125", 0.188", 0.250", or 0.375"), and 4) the slot starting point (minimum 0.375" from the end of the tube). Common mistake: forgetting to specify the slot width. If omitted, the default may not match your rail button or switch size.
  4. Review and submit your order: Double-check that all four details are clearly written in the order notes. Confirm the tube diameter and length match the slotting service. Submit the order and allow 3-5 business days for processing. Checkpoint: ensure the slot starting point is at least 0.375" from the tube end to avoid structural weakness.

Product facts