Estes Rockets - 1/2A3-2T Model Rocket Engines (4pk) Electric Accessories Battery Charging and Balancing Can be used with TT-01

Can be used with TT-01 and TT-01 Type-E chassis cars

6 Flat Head Hex Socket Screw M2

Steam-powered trains from centuries ago are accommodating hundreds of passengers jumping from one town to another - professionally engineered with pieces of machinery that drive the train forward

Major improvements consisted of additional side armor slope angles and simplified assembly refinements for mass production

(4) 15x26x7

Estes Rockets - 1/2A3-2T Model Rocket Engines (4pk) Electric Accessories Battery Charging and Balancing Can be used with TT-01The Estes 1 2A3 2T is a single stage 13mm mini engine for lightweight model rockets. With 1. 25 N s impulse, 8. 3 N peak thrust, and a 2 second delay, it delivers quick and reliable launches. Packs include 4 engines, 4 igniters, and 4 plugs. Ideal for small rockets like Mini Alpha, Mini Bertha, and Mini Honest John, it's perfect for educational, hobbyist, and backyard flying.