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Hybrid rocket

Posted: Thu Apr 15, 2021 2:09 pm
by bearnard123
Have you ever heard about hybrid rockets? Some space company manufactures and uses this kind of rockets in small launches like delivering microsatellites in the orbit.this type of rocket is uncrewed and guided and is used for test in under microgravity conditions.

Re: Hybrid rocket

Posted: Thu Apr 15, 2021 2:27 pm
by flyingturtle
Hybrid rockets? You mean, ones with an air intake, so that the rocket doesn't have to carry all the oxidizer?

Re: Hybrid rocket

Posted: Thu Apr 15, 2021 2:37 pm
by mxaxai
flyingturtle wrote:
Hybrid rockets? You mean, ones with an air intake, so that the rocket doesn't have to carry all the oxidizer?

Hybrid-propellant rockets are usually rockets where one propellant - generally the fuel - is solid and the other - usually the oxidiser - is liquid or gaseous.

Technically, an air breathing rocket could be a variant of a hybrid rocket but I've never seen one.

As bearnard writes, they're usually used for experimental suborbital flights. Virgin Galactic also uses one for crewed suborbital flights.

Re: Hybrid rocket

Posted: Thu Apr 15, 2021 4:42 pm
by Nomadd
mxaxai wrote:
flyingturtle wrote:
Hybrid rockets? You mean, ones with an air intake, so that the rocket doesn't have to carry all the oxidizer?

Hybrid-propellant rockets are usually rockets where one propellant - generally the fuel - is solid and the other - usually the oxidiser - is liquid or gaseous.
Technically, an air breathing rocket could be a variant of a hybrid rocket but I've never seen one.
As bearnard writes, they're usually used for experimental suborbital flights. Virgin Galactic also uses one for crewed suborbital flights.


Rutan on Spaceship 1 and Virgin on Spaceship 2 both use(d) nitrous oxide for oxidizer and a chunk of rubber (HTPB) for fuel. Dreamchaser was going to use hybrid, but switched to propane/nitrous oxide.

Re: Hybrid rocket

Posted: Fri Apr 16, 2021 7:35 am
by bearnard123
flyingturtle wrote:
Hybrid rockets? You mean, ones with an air intake, so that the rocket doesn't have to carry all the oxidizer?

Yeah, you are right. To be more accurate the term ``hybrid`` has been given to this rocket because it combines solid Hydroxyl Terminated Polybutadiene (HTPB) fuel and 90% Hydrogen Peroxide (H202) liquid oxidiser. This rocket is called Sky Hy and was made by private space company from Scotland

Re: Hybrid rocket

Posted: Fri Apr 16, 2021 11:00 am
by bearnard123
Additionally, the avionics equipment can be physically tested the thermal protection coating as well as ononboard telementry components under flight conditions, while investigating Earth`s magnetic field.

Re: Hybrid rocket

Posted: Sun Apr 18, 2021 8:56 am
by WIederling
bearnard123 wrote:
flyingturtle wrote:
Hybrid rockets? You mean, ones with an air intake, so that the rocket doesn't have to carry all the oxidizer?

Yeah, you are right. To be more accurate the term ``hybrid`` has been given to this rocket because it combines solid Hydroxyl Terminated Polybutadiene (HTPB) fuel and 90% Hydrogen Peroxide (H202) liquid oxidiser. This rocket is called Sky Hy and was made by private space company from Scotland


Pretty popular concept.
from amateur to full size commercial rocketry.
The Virgin people use it too. ( and had a major accident with their oxydizer.)


elsewhere:
There are solid rocket motors around for long range missiles that switch between basic rocket and airbreather configuration.
MBDA Meteor: https://en.wikipedia.org/wiki/Meteor_(missile)#Propulsion

Re: Hybrid rocket

Posted: Mon Apr 19, 2021 2:34 pm
by bearnard123
WIederling wrote:
bearnard123 wrote:
flyingturtle wrote:
Hybrid rockets? You mean, ones with an air intake, so that the rocket doesn't have to carry all the oxidizer?

Yeah, you are right. To be more accurate the term ``hybrid`` has been given to this rocket because it combines solid Hydroxyl Terminated Polybutadiene (HTPB) fuel and 90% Hydrogen Peroxide (H202) liquid oxidiser. This rocket is called Sky Hy and was made by private space company from Scotland


Pretty popular concept.
from amateur to full size commercial rocketry.
The Virgin people use it too. ( and had a major accident with their oxydizer.)


elsewhere:
There are solid rocket motors around for long range missiles that switch between basic rocket and airbreather configuration.
MBDA Meteor: https://en.wikipedia.org/wiki/Meteor_(missile)#Propulsion

As far as I know Skyhy works perfectly and it doesn`t have any of the problem with oxydizer and accomplishes well with all microgravity missions and experiments. ( delivers payloads to the orbit and makes different tests )

Re: Hybrid rocket

Posted: Mon Apr 19, 2021 3:27 pm
by WIederling
bearnard123 wrote:
As far as I know Skyhy works perfectly and it doesn`t have any of the problem with oxydizer and accomplishes well with all microgravity missions and experiments. ( delivers payloads to the orbit and makes different tests )


SkyHy is a two stage sounding rocket with Suborbital capabilities.

the design seems to have been bought up from Richard M Brown's FARISpace "First Amateur Rocket in Space"
including Mr. Brown :-) :
http://www.rocketeers.co.uk/node/5760
https://www.holyroodpr.co.uk/british-sp ... a-tech-pr/

Interesting ... but not "There" yet.