The Estes A3-2T mini engine is a specially produced, 13mm model rocket engine that has a 2-second delay. Enjoy watching your rocket soar at its highest heights for an extra 2 seconds before it starts the descent with this incredible mini engine. Each package includes 4 engines, 4 starters, and 4 mini starter plugs.

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.

Build and fly your own designs. 100+ useful parts to build up to 8 rockets! Be that “rocket scientist” you’ve always dreamed of being!

• Flame resistant recovery wadding necessary for protecting your recovery system
• Enough wadding for 10-12 Pro Series II launches
• Can be used with any of our rockets

The Explorer Aquarius is a Master level kit that features a custom jig for perfect alignment assembly. Launched with an Estes D12-5 engine (sold separately), the Explorer Aquarius can fly higher than 700 feet! You’ll want to proudly display this show piece when it’s not on the launch pad, so we’ve included a removable plastic display engine nozzle for the complete effect.

ATTENTION: Requires Estes Porta-Pad E and E Launch Controller or Pro Series II Launch Controller, when launching E Engines – sold separately.

High quality spiral wound paper tubes for kits using the BT-60 body tube.

The Belt Object Survey Ship (B.O.S.S) was designed over 40 years ago, in a time where nuclear propulsion and solar power were the latest in space flight innovations. Bill Simon created designed this one-of-a-kind rocket in partnership with Estes. This long-awaited prototype is being released for the first time. Experience innovation from days past with Estes’s Belt Object Survey Ship.

• Skill Level: Advanced
• Estimated Assembly Time: 2-3 hours
• Length: 27.8 in.
• Projected Altitude: 600 ft.
• Recommended Engines: c6-5, B4-4, B6-4

ENGINES FOR MODEL ROCKETS

2 – E16-0 Engines
2 – Starters
4 – Starter Plugs

ATTENTION: Additional Hazardous Materials shipping and handling charge of $35.49 will be applied at checkout.

ATTENTION: These engines cannot be sent to post office boxes. Please be sure to provide a PHYSICAL ADDRESS when purchasing E and F sized engines.