Question 1

Can the E12-0 fit in a Starter set rocket and how high will it go with that type of rocket?

Accepted Answer

absolutely not! It is way too powerful.Use an A or B size engine depending on the size of the rocket.The baby bertha which is my all time favorite rocket can handle a B size engine.  Similarly sized rockets like those found in starter sets should use a A size engine.E engines are for very large rockets  and also need much larger engine holders!

Question 2

how high does the e engine go?

Accepted Answer

How high an E engine will take a rocket depends on many things, including:

1. How heavy the rocket is
2. The shape and size of the rocket
3. The number at the very end of the E engine name (such as, in this case, E12-0)

A heavy rocket will usually not fly as high as a lightweight rocket. So, without knowing how heavy the rocket is, it is hard to say how high the rocket will fly on an E engine.

A skinny rocket will experience less drag - or wind resistance - than a fat rocket. So a skinny rocket may fly much higher on an E engine than a fat rocket.

The number at the end is the "delay." That means that after the engine burns out, there will be a delay, in seconds, before the ejection happens, which makes the parachute pop out.

The engines here are E12-0. That "0" means that there is no delay. These are only meant as "booster" engines in a multi-stage rocket. If you put one in a single stage rocket, as soon as the engine stops burning, the rocket will eject the nose cone. That means that the parachute will come out while the rocket is still flying very fast! This could tear the rocket apart.

For a single stage rocket, you want an engine with a delay - such as an E12-4, E12-6 or E12-8. Those delays - 4, 6, and 8 seconds - will allow the rocket to coast while it's still traveling upwards after the engine burns out. Then, after a number of seconds, when the rocket has slowed down, the chute will come out.

That being said, for a lightweight model rocket, an E engine can perform quite well. Some rockets can easily top 1,000 feet on an E engine. Check the package of the model you want to fly to get an idea of the altitude you will reach.

And if you have a 2-stage rocket, this is a great engine for the first stage.

Question 3

Hi, can i use the e12-0 for the estes space shuttle 7246 or do i use the e12-4 engine? confused, thanks!

Accepted Answer

No because after the E 12 0 means it's a booster motor only and will burn up your parachute now E12 4 would be perfect..e 12-0 is a booster motor on a 2 stage

Question 4

I don't understand. E12-0. The burn time is 0 (zero)? What? it just explodes? That not a rocket. its a cannon.

Accepted Answer

This is a powerful booster stage engine. The "0" means there is no time delay, will ignite and go. Compare this to the E12-8, an upper stage engine. The "8" means an eight second time delay.

ASIN	B0087S58L8
Additional Features	Booster stage engine designed for model rocket flight; requires another 24mm use
Age Range Description	Kid
Art Craft Kit Type	Model Rocket Engine Kit
Brand Name	Estes
Color	Standard
Customer Reviews	4.4 4.4 out of 5 stars (130)
Item Dimensions	10 x 2 x 2 inches
Item Weight	3.2 ounces
Manufacturer	ESTES
Material Type	Plastic
Number of Pieces	2
Seasons	All Seasons
Size	Standard
Subject Character	Generic Rocket
UPC	047776016910 885216961440

Estes E12-0 (3-Ea) Rocket E Engine

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