C6-7 Engines

C6-7 Engines


3 – C6-7 Engines
4 – Starters
4 – 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.


Availability: In stock


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The Estes C6-7 engine is an upper stage engine designed for model rocket flight. This engine can also be used as a single stage engine in lightweight rockets. Each package includes 3 engines, 4 starters and 4 plugs.

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2.8 in. (7 cm)


18 mm

Estimated Weight

.85 oz. (24.1 g)

Total Impulse

10.00 N-sec

Time Delay

7 Seconds

Estimated Max Lift Weight

2.5 oz (71 g)

Max Thrust

15.30 Newtons (3.4 lbs)

Thrust Duration

1.60 Seconds

Initial Weight

0.85 oz (24.3 g)

Propellant Weight

0.43 oz (12.2 g)

Quantity Per Pack


8 reviews for C6-7 Engines

  1. Brandon


    I launched my Yankee on this to almost 2,000 feet. Because I used a Mylar streamer (cut from an emergency blanket) I was able to track it all the way down. Unfortunately, it landed outside the park and is now lost. It was still fun to watch!

  2. zach

    Great for high rockets

    I use these whenever i want to see a rocket go super high. They got the job done. ESTES NOTE: Please confirm, before using any ESTES engine, it is recommended for the rocket you are flying.

  3. Constantine

    High Quality Product

    I hadn’t launched rockets in over 10 years, but for some reason I brought up the subject with my 3 and a half year old son last weekend. We watched you tube videos of launches and he seemed excited, so I ordered the Sky Trax pre-assembled rocket that he thought looked cool. It came this weekend, so I dug out my old launch box and porta-pad and got ready for my first launch in over a decade.

    I pulled out an ancient pack of these c6-7 engines that must’ve been over 12 years old. I had 2 left and decided to at least try to use them, before heading to the local hobby shop to buy new ones.

    I was prepared for duds after having them sitting around for over a decade, but was pleasantly surprised when our new rocket shot off the pad up into the clouds like a bullet. And after spending over an hour retrieving the rocket from high up in a tree, I adjusted the launch pad and fired off the other engine in our new Sky Trax. This time both the launch AND recovery went flawlessly.

    These engines AND IGNITORS were well over a decade old, and still performed flawlessly! My son is now hooked on rockets and I will never think of using any product other than Estes. I loved their products as a kid, and will continue to use them with my kids. Unbelievable Quality and Performance.

  4. Eric


    All motors worked without any problems!

  5. rocket master

    AWESOME ENGINES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    I used these engines with my Taser model rocket and it went real high. The box on my Taser said it reached 1100ft. which I thought was awesome! BUY THESE ENGINES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  6. Alexander

    My personal favorite

    This has always been my favorite engine since it is the strongest out of all the standard engines. Most recommended for those who like to ignore the first flight engine select on the model discription and for those who like out of sight preformance.

  7. bryboy

    SOOOOOO much power

    I recently built the original ALPHA rocket as my first rocket in over 5 years, went to the store and bought these engines (The largest that the store had that would fit) thinking that higher would be better, and it sure was…. until it reached opogee in the JETSTEAM! it went straight sideways and probably landed somewhere in Antarctica. It was TOTALLY amazing and breathtaking just how high my ALPHA went with these rockets. lost my rocket, but It was so spectacular, it may have been worth it. now what do I do with the other two engines still in the pack…

  8. zebra man


    this is the best engine for the taser twin!!!!!!!!!!!!

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