Launching a rocket from high altitude

In summary, the speaker is planning to launch a rocket from a high altitude weather balloon and is concerned about the igniter not being able to ignite the engine due to low oxygen levels. They ask if there is a way to make a combustion chamber for the engine and are told that using the rocket fuel compound as part of the igniter should provide enough energy. The speaker asks for clarification on how to integrate this into the igniter and is advised to use a small high resistance wire coil embedded into a molded slug of the fuel compound at the exhaust nozzle. The speaker confirms that the igniter coil should be embedded directly into the solid fuel engine near the exhaust nozzle.
  • #1
Sullyyy
3
0
I have a project where I will be launching a rocket from a high altitude weather balloon. I am planning on launching the rocket at around 70Km or even higher. My main concern is the igniter not being able to ignite the engine because of the low amount of oxygen. Is there any way around this? Possible to make like a combustion chamber for the engine?
 
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  • #2
If this is a solid fuel rocket then use the rocket fuel compound as a part of the igniter and there should not be a problem because the sufficient energy from a spark or heat from a wire coil is all that should be required.
 
  • #3
JBA said:
If this is a solid fuel rocket then use the rocket fuel compound as a part of the igniter and there should not be a problem because the sufficient energy from a spark or heat from a wire coil is all that should be required.
How would I integrate this into the igniter?
 
  • #4
For example, use a small high resistance wire coil embedded into a small molded slug of the fuel compound or the bottom of the solid fuel at the exhaust nozzle.
 
  • #5
JBA said:
For example, use a small high resistance wire coil embedded into a small molded slug of the fuel compound or the bottom of the solid fuel at the exhaust nozzle.
So basically embed the igniter coil directly into the engine of solid based fuel closest to the exhaust nozzle?
 
  • #6
Yes
 

1. How does launching a rocket from high altitude differ from launching from the ground?

Launching a rocket from high altitude differs from launching from the ground in several ways. First, the air is much thinner at high altitudes, so the rocket will experience less resistance and can achieve greater speeds. Second, launching from high altitude allows the rocket to take advantage of the Earth's rotation, which can give it an additional speed boost. Finally, launching from high altitude requires more precise calculations and adjustments due to the varying atmospheric conditions at different altitudes.

2. What are the advantages of launching a rocket from high altitude?

There are several advantages to launching a rocket from high altitude. As mentioned before, the thinner air and Earth's rotation can help the rocket achieve greater speeds. Launching from high altitude can also save fuel, as the rocket does not have to work as hard to overcome air resistance. Additionally, launching from high altitude can provide a better trajectory for the rocket, allowing it to reach its intended destination more efficiently.

3. What are the challenges of launching a rocket from high altitude?

Launching a rocket from high altitude presents several challenges. One of the main challenges is the need for precision in calculations and adjustments due to the varying atmospheric conditions at different altitudes. Another challenge is the potential for strong winds at high altitudes, which can affect the rocket's trajectory. Additionally, launching from high altitude may require specialized equipment and facilities, adding to the overall cost and complexity of the launch.

4. How do scientists determine the ideal altitude for launching a rocket?

The ideal altitude for launching a rocket depends on several factors, including the weight and size of the rocket, its intended destination, and the desired trajectory. Scientists use complex calculations and simulations to determine the best altitude for a specific rocket launch. They also take into account weather conditions and other variables that may affect the launch.

5. What are the potential risks of launching a rocket from high altitude?

Launching a rocket from high altitude carries some risks, such as the possibility of strong winds or other adverse weather conditions affecting the launch. There is also the risk of the rocket malfunctioning or encountering technical difficulties during the launch. Additionally, launching from high altitude may pose a threat to aircraft or satellites in the surrounding airspace. Proper safety measures and precautions must be taken to minimize these risks.

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