Most model rockets blast off at a much higher acceleration rate than full size rockets. Is it possible to have model rockets take off slowly to more closely mimic the acceleration speed of full scale rockets?

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Most model rockets blast off at a much higher acceleration rate than full size rockets. Is it possible to have model rockets take off slowly to more closely mimic the acceleration speed of full scale rockets?

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Yes, by weighing them down. But why would you want to?

I honestly don’t think model rockets accelerate faster than large ones. The space shuttle is going 100MPH by the time the tail passes the tip of the crane. Its all perspective. I mean, the initial acceleration of a model is faster, since its power to weight ratio is probably much higher, but the overall acceleration is no where near the same.

A long time ago, there was a multistage Apollo rocket model made by Estes. It took either 4 b motors or one bigger one. I think it was a d motor. With the 4 smaller motors, it took off very realistically. The bigger motor took off like a bottle rocket. I only saw a completed one once and it was really cool.

No, not really. Some things just don’t scale very well, and model rockets don’t for a number of reasons.

If you balance a broom on your palm (vertically), it’s pretty easy to do and it’ll stay upright even if your movements are pretty slow. If you try the same with a pencil, it’s way harder and you need to be very quick.

It’s the same story with rockets. The smaller you make it, the more quickly it wants to tip over. Compare the way a pen falls to the way a cut tree falls.

Getting a small model rocket to almost hover in the air without tipping over would be very challenging and would probably require a very fast active stabilization system of some kind. Or you may need gyroscopic stabilizers. If the rocket flies fast enough, the fins at the bottom will stabilize it, but that doesn’t work at low speeds.

There would be other problems as well, such as dialing in the thrust just right, and getting a long enough burn time.

The thrust-to-weight ratio for most model rockets is *waaaay* higher than the TWR of orbital rockets; mostly because mass scales exponentially with size but thrust doesn’t. You can get a similar visual effect by lowering the TWR on your model rocket to something close to that of an orbital rocket – by either reducing the thrust or increasing the weight (or probably both).