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E12-8 - Single-Use TSP 24 mm model rocket engine (2 pcs.)

Single-use rocket motors made in Europe! E12 motors with 8 seconds delay, for upper stages, in a pack of two. Same dimensions as the Estes E engines (24 x 95 mm) but with a lot more power!

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Single-use E12 motors with 8 seconds delay. For upper stages and as replacement for Estes E9 and E12

Pack of 2 pieces with igniters

Same dimensions as the Estes E9 or E12 engines, which however are not imported into Europe.

These engines are made in Europe by TSP, a manufacturer with decades of experience in making engines for FAI competition rocket models. TSP motors are extremely reliable and very precise, and are more powerful than motors of the same class from other manufacturers. Furthermore, their ignition is particularly easy which makes them suitable for creating multi-engine (cluster) models. All at an unbeatable price and with almost unlimited availability!

More power with the same size

TSP engines use a propellant with superior performance to the traditional one used for example in Estes engines. This means that for the same size a TSP engine produces more thrust than a comparable Estes. And not only that: the initial thrust of these engines is generally higher or lasts longer than the corresponding engines of other brands.
For example, this E12 has an initial thrust of around 30N like the Estes E12, but this thrust lasts about 0.7 seconds after which it stabilizes at a constant value of just over 12N, while the Estes E12s actually have an average thrust of 11.2N (official NAR data).
This means that the overall thrust of a TSP E12 close to the real 13N!
Moreover, European manufacturers always make their engines with total impulse equal to or almost the maximum for the category, so this E12 engine has a total impulse of 39 Ns , against the 27 Ns of the Estes E12: 12 Ns more!

Easy to ignite

TSP engines start very easily with any type of igniter. You can use those included in the package, totally free from pyrotechnic material and very reliable, or the Estes starters, the Klima starters, the e-matches, all types of starters in kits (Magnelite, etc.), the FirstFire Aerotech, etc.
Their ease of ignition allows you to create clusters of engines and ignite them safely, both using low absorption igniters connected in series, such as Klima or e-matches, and using Klima's Tapematch and Stage Igniters system .

Unprecedented price and availability

These engines are manufactured in the European Community. This means that their transportation is simple, fast and economical, without the complications and costs of importing from the USA and without having to wait impossible times. Coming directly from the manufacturer, availability is virtually unlimited. And the price reflects all this...

CE certification and reliability

The manufacturer TSP has decades of experience in manufacturing engines for FAI competitions. The manufacturing techniques are more than tested to eliminate any manufacturing defects. This makes TSP engines among the most reliable on the market. All TSP motors have the regular CE certificate and are classified P1 according to community regulations.


  • Power. More power than traditional engines of the same size.
  • Reliable. Manufactured by a company with decades of specific experience in the manufacturing of engines for rocket models.
  • Available. No waiting, TSP engines are available in virtually unlimited quantities.
  • Easy to light with any type of igniter (Estes, Klima, Aerotech, Magnelite, Magnefire, E-matches,...)
  • Delay -0. The version without delay is available for all classes of TSP motors, to create multi-stages.
  • Easy clusters. Thanks to the ease of ignition, TSP engines can be grouped into clusters to obtain greater power.
  • Cheap. Compare the price with that of equivalent engines made in the USA.
  • Safe. All TSP motors have the CE mark and have passed the rigorous tests required. The certification is recognized in all EU countries.

Data sheet

95 mm
24 mm
64 g
Total Impulse
39 Ns
Thrust duration
3.2 s
8 s
Max. liftoff weight
350 g
Primary use
Booster stages