Estes Model Rocket Motor 1/2A3-4T for local classroom launch only
18mm Model Rocket Motors
Full one year warranty through manufacturer
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Body Tubes
- BT-1+ - 0.246"
- ST-2 - 0.260"
- BT-2 - 0.281"
- BT-2+ - 0.318"
- BT-3 - 0.375"
- BT-4 - 0.448"
- BT-4+ - 0.478"
- BT-5 & ST-5(13mm) - 0.541"
- BT-5+ - 0.585"
- M15-(15mm) - 0.590"
- ST-6 - 0.650"
- BT-20(18mm motor) - 0.736"
- ST-7(18mm motor) - 0.759"
- BT-30 - 0.767"
- BT-20+ - 0.788"
- M20-(20mm) - 0.788"
- ST-8 - 0.908"
- ST-8F - 0.921"
- LT-085 - 0.945"
- BT-50(24mm motor) - 0.976"
- BTH-50(24mm motor) - 0.992"
- M25-(25mm) 0.984"
- ST-9(24mm motor) - 0.998"
- BT-50+ - 1.01"
- BT-51 - 1.011"
- BT-52 - 1.014"
- ST-10 - 1.04"
- ST-11 - 1.17"
- M30-(30mm) - 1.181"
- BTH-52 & LT-115(29mm motor) - 1.21"
- BT-55 - 1.325"
- M35-(35mm) - 1.378"
- BT-58 - 1.54"
- M40-(40mm) - 1.575"
- BTH-38mm - 1.635"
- BT-60 & ST-16 - 1.64"
- BT-65 - 1.796"
- LT-175 - 1.840"
- ST-18 - 1.84"
- BTH-1.88 - 1.88"
- M50-(50mm) - 1.969"
- ST-20 - 2.042"
- BT-70 - 2.217"
- BTH-70 - 2.247"
- BTH-54mm -2.247"
- BT-80 - 2.6"
- BTH-80 - 2.635"
- ST-27 - 2.7"
- BTH-3.0E - 3.000"
- BTH-3.1 - 3.09"
- RT-99 - 3.7"
- BT-100 - 3.744"
- BT-101 - 3.938"
- BTH-4.0 - 3.996"
- BTH-5.5 - 5.54"
- BTH-7.5 - 7.688"
- Clear all sizes
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Centering Rings
- Fits BT-60(ST-16)& ST-16 tube
- Fits BT-1+ tube
- Fits BT-2 tube
- Fits BT-3 tube
- Fits BT-4 tube
- Fits BT-5 tube
- Fits BT-20 tube
- Fits ST-7 tube
- Fits ST-8 tube
- Fits ST-8F tube
- Fits BT-50 & BTH-50 tube
- Fits BTH-50(24mm)
- Fits ST-9 tube
- Fits ST-10 tube
- Fits ST-11 tube
- Fits BTH-52 & LT-115(29mm) tube
- Fits ST-18 tubes
- Fits BT-55 tube
- Fits ST-13 tube
- Fits T-1.88"H tube
- Fits BT-56 tube
- Fits ST-20 tube
- Fits T-38mmH tube
- Fits BT-58 tube
- Fits T-2.0" tube
- Fits BT-60 & ST-16 tube
- Fits BT-70 & BTH-70 tube
- Fits LT-175 tube
- Fits ST-27 tube
- Fits T-54mm tube
- Fits T-2.5" tube
- Fits BT-80 & BTH-80 tube
- Fits T-3.0"H tube
- Fits 3.1" tube
- Fits BT-100 tube
- Fits BT-101 & T-4.0" tubes
- Fits T-5.5" tube
- Fits T-7.5" tube
- Quest Metric
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Couplers
- Fits BT-60(ST-16)& ST-16 tube
- Fits BT-3 tube
- Fits BT-4 tube
- Fits BT-5 & ST-5 tube
- Fits ST-6 tube
- Fits BT-20 tube
- Fits ST-7 tube
- Fits BT-30 tube
- Fits BT-40 tube
- Fits ST-8 tube
- Fits ST-8F tube
- Fits LT-085 tubes
- Fits ST-9 tube
- Fits BT-50 & BTH-50 tube
- Fits BT-52 tube
- Fits ST-10 tube
- Fits ST-11 tube
- Fits LT-115 & BT-52H tubes
- Fits BT-55 tube
- Fits ST-13 tube
- Fits BT-58 tube
- Fits BT-60 & ST-16 tube
- Fits LT-175 tube
- Fits ST-18 tubes
- Fits T-1.88"H tube
- Fits ST-20 tube
- Fits BT-70 & BTH-70 tube
- Fits BT-80 & BTH-80 tube
- Fits BT-3.0"H tube
- Fits BT-100 tube
- Fits BT-101 tube
- Fits T-4.0"H tube
- Fits T-5.5 tube
- Fits T-7.5" tube
- Fits BTH-54mm tube
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Nose Cones
- Fits BT-2 tubes
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- Fits BTH-7.51" tube
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- Fits LT-115 or BTH-52 Tubes
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- Fits BT-10 & BT-20 Tubes
- Fits BTH-38mm Heavy Walled Tube
- Fits M15 tube(BC-T15)
- Fits M20 tube(BC-T20)
- Fits M25 tube(BC-T25)
- Fits M30 tube(BC-T30)
- Fits M35 tube(BC-T35)
- Fits M40 tube(FNC-T40)
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