Anti-Zipper Design

Estes Part Reference

Airframes
Nosecones
Fins
Motor Mounts
Motor Retention
Adhesives
Epoxy Primer
Epoxy Tips
Tube Cutting Jig
Reinforcing Tubes
Easy 'Glassing
Vacuum Bagging
Heat Shrink Tape
Anti-Zipper Design
Anti-Zipper Baffle
Shear Pin Design
Hot Wire Cutting
Making Couplers
Router Fin Slots
Miter Saw Slots
Fixing a Zipper
Estes Reference
Fin Bevelling
Routing Fins
Mold Making
Phenolic Tubing
Fin Fillets
Inside Fillets
Plastic Bonding
Epoxy & Heat
Plywood Bulkeads
Fiberglass Tips
Warped Plywood
Foam Turning

ELSEWHERE
Fin Slots

Body Tube and Balsa Fin Stock Dimensions

Part Number	Length	Inside Diameter	Outside Diameter	Wall Thickness
BT-3H	3.000	0.349	0.375	0.013
BT-5	18.000	0.515	0.541	0.013
BT-5BP	2.000	0.515	0.541	0.013
BT-5P	5.100	0.515	0.541	0.013
BT-5T	1.500	0.515	0.541	0.013
BT-5CJ	3.000	0.515	0.541	0.013
BT-20	18.000	0.710	0.736	0.013
BT-20AE	1.500	0.710	0.736	0.013
BT-20B	8.650	0.710	0.736	0.013
BT-20D	6.500	0.710	0.736	0.013
BT-20G	3.500	0.710	0.736	0.013
BT-20J	2.750	0.710	0.736	0.013
BT-20L	12.000	0.710	0.736	0.013
BT-20DJ	4.000	0.710	0.736	0.013
BT-20M	2.250	0.710	0.736	0.013
BT-30	9.000	0.725	0.765	0.021
BT-30A	3.500	0.725	0.765	0.021
BT-30B	6.125	0.725	0.765	0.021
BT-30C	5.500	0.725	0.765	0.021
BT-30F	7.000	0.725	0.765	0.021
BT-30J	2.750	0.725	0.765	0.021
BT-30K	2.340	0.725	0.765	0.021
BT-48BE	2.500	0.902	0.928	0.013
BT-50	18.000	0.950	0.976	0.013
BT-50AE	1.500	0.950	0.976	0.013
BT-50AH	1.875	0.950	0.976	0.013
BT-50EE	5.500	0.950	0.976	0.013
BT-50FE	6.500	0.950	0.976	0.013
BT-50H	7.750	0.950	0.976	0.013
BT-50J	2.750	0.950	0.976	0.013
BT-50KE	15.000	0.950	0.976	0.013
BT-50L	12.700	0.950	0.976	0.013
BT-50S	4.000	0.950	0.976	0.013
BT-50V	16.500	0.950	0.976	0.013
BT-50W	9.500	0.950	0.976	0.013
BT-51CI	3.875	0.984	1.011	0.013
BT-51N	12.420	0.984	1.011	0.013
BT-52AG	2.100	0.988	1.114	0.063
BT-52S	3.938	0.988	1.114	0.063
BT-55	18.000	1.283	1.325	0.021
BT-55IJ	9.000	1.283	1.325	0.021
BT-55J	2.750	1.283	1.325	0.021
BT-55KG	16.690	1.283	1.325	0.021
BT-55S	4.000	1.283	1.325	0.021
BT-55V	16.350	1.283	1.325	0.021
BT-58	12.750	1.498	1.540	0.021
BT-60	18.000	1.595	1.637	0.021
BT-60AD	14.000	1.595	1.637	0.021
BT-60AJ	10.000	1.595	1.637	0.021
BT-60D	11.000	1.595	1.637	0.021
BT-60FG	6.700	1.595	1.637	0.021
BT-60HE	8.500	1.595	1.637	0.021
BT-60J	2.750	1.595	1.637	0.021
BT-60K	7.000	1.595	1.637	0.021
BT-60KF	16.100	1.595	1.637	0.021
BT-60R	5.000	1.595	1.637	0.021
BT-63CJ	3.000	1.639	1.681	0.021
BT-63Y	1.340	1.639	1.681	0.021
BT-70	17.500	2.175	2.217	0.021
BT-70H	7.150	2.175	2.217	0.021
BT-70V	10.600	2.175	2.217	0.021
RT-70	0.680	2.175	2.217	0.021
BT-80	7.600	2.560	2.600	0.021
RT-99D	0.391	3.668	3.790	0.021
BT-100CE	3.500	3.702	3.744	0.021
BT-100Z	10.890	3.702	3.744	0.021
BT-101	16.500	3.896	3.938	0.021
BT-101K	7.590	3.896	3.938	0.021
BT-101T	2.780	3.896	3.938	0.021

Estes Plastic Tubes

Part Number	Length	Inside Diameter	Outside Diameter	Wall Thickness
BT-10	9.000	0.710	0.720	0.005
BT-10H	3.062	0.710	0.720	0.005
PST-20	8.000	0.710	0.736	0.013
PST-20J	2.750	0.710	0.736	0.013
PST-50FJ	6.000	0.950	0.976	0.013
PST-50S	4.000	0.950	0.976	0.013
PST-59CJ	3.000	1.533	1.585	0.201
PCT-60	1.525	1.576	1.595	0.023
PST-60R	5.000	1.595	1.637	0.021
CM-8EA	4.180	1.685	1.785	0.021
PST-65R	5.000	1.595	1.641	0.023

Balsa Fin Stock

Part Number	Thickness
BFS-10	1/32" (0.03125)
BFS-20B	1/16" (0.0625)
BFS-20	1/16" (0.0625)
BFS-20L	1/16" (0.0625)
BFS-30LA	3/32" (0.09375)
BFS-30	3/32" (0.09375)
BFS-30L	3/32" (0.09375)
BFS-30W	3/32" (0.09375)
BFS-40	3/32" (0.09375)
BFS-40L	1/8" (0.125)
BFS-40W	1/8" (0.125)
BFS-60S	3/16" (0.1875)

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