Polyethylene vs Nylon Model Rocket Parachutes
Neither polyethylene film nor nylon fabric guarantees a slower descent. Compare the exact canopy, packed fit, attachment and recovery mass for your rocket.
-
-
Model Rocket Shock Cords: Selection, Mounting & Inspection
Choose a shock cord and anchor for the specific kit and airframe. Inspect attachments before every flight; do not drill thin body tubes for generic eye-bolt mounts.
-
Model Rocket Fin Alignment: Marking, Jigs and Inspection
Align fins to the intended design with careful marking, dry-fitting and sound joints. A jig helps placement, but no generic angle certifies stability.
-
Body Tube Size Chart: Standard Dimensions
Correction: An earlier version of this chart gave incorrect BT-70 and BT-80 diameters and treated airframe diameter as a motor-size limit. This version uses published supplier dimensions. Measure the actual tube and matching part before gluing: nominal labels are not a fit guarantee. Model rocket body tube size chart These are the outside diameter (OD),…
-
Model Rocket Parachute Sizing: Descent & Drift
Estimate parachute performance using the actual rocket mass, canopy data, deployment and field conditions. No diameter formula or wind adjustment guarantees a safe landing.
-
Recovery Wadding: Placement, Packing & What to Use
Place flame-resistant recovery wadding between the motor and parachute or streamer. Follow the kit’s quantity and packing instructions; avoid gaps and obstructive plugs.
-
Fin Grain Direction: The Complete Guide
Orient solid-wood fin grain by the kit plan; for common swept fins, consider grain approximately along the leading edge toward the root.
-
Model Rocket Adhesive Weight Comparison
Choose rocket adhesive by joint materials and instructions first, then measure fully cured assembly mass instead of relying on unsupported glue rankings.
-
Model Rocket Streamers: Materials & Recovery Selection
Streamer suitability depends on rocket mass, dimensions, deployment, and landing site—not material name alone. No controlled material-life test is claimed.
-
Body Tube Metric Conversion Guide
Convert eRockets standard paper body-tube dimensions to approximate millimeters, then verify the actual tube and companion-part fit.
