Bachelor Degree Rocket Engine Gimbal Test

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This is a video from our first rocket engine gimbal test - a project by one of our interns for his Bachelor thesis. Engine is running at around 5 kN thrust.
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[@spectrHz]

This is fantastic, You guys have come a long way since your first basic hybrid rocket tests, very impressive :)

[@beloved_lover]

Could you cover the gimbal on more detailed video please? Especially how it will be mounted to the rocket, actuator setup and controller? Edit: Pretty please :P

[@leokimvideo]

Test is GOOD

[@ryanclarke2161]

how does this only have 5k views?

[@CopenhagenSuborbitals]

because there are no kittens doing silly things in it

[@ulysisxtr]

I vote for the appearence of a rocket kitty.. Have a cat appear near space tech.

[@TheCrossroads09]

I'm thinking Spica should have the single BPM 100 fixed centrally and 4 of these BPM 5 gimble engines surrounding it to be used as verniers.

[@makarlock]

TheCrossroads09 the old Soyuz-eroo

[@IncurZeAwperator]

that would look awesome

[@skyprop]

Reminds me alot of an LR-101 Engine... I own one.

[@MrGrebgnet]

Looking good! Cheers from Sweden!

[@DanielSuguwa]

Good job guys! Maybe I am a little bit late for this, but anyway congrats for successful BPM-5 engine gimbal test! Greeting from Sarawak :D

[@Kea_172]

The engine reminds me of the Rocketdyne A-7 used on Redstone.

[@pyrusrex2882]

I want one for my mountain bike

[@MinerKingX]

engine go brrrrr

[@elementavo]

Nice rocket, what is the F/O?

[@K2KnockOut]

Hi, I'm not a rocket scientist, but should you really be doing this indoors?

[@CopenhagenSuborbitals]

K2 KnockOut It’s a 20ft container to protect the surroundings. Outside there’s even more protection

[@aerospacenews]

It looks like it went well. Did it?

[@bkstyles5769]

hi there, greetings
what kind of actuating system do we using linear electrical actuator or pneumatic based! thank you

[@ctrang0458]

RIP my ears. how many db is this?

[@eischei]

Looks like you got a little leak on your temperature gauge.

[@alexpav7351]

What are the dimensions of the visible part of the rocket in the video?

[@thegarginator]

Anyone know the gimbal range on dat boi?

[@ncdefenceman]

What is the combustion chamber made out of?

I am pretty confident that it is steel. The fuel is run through the outer layer of the combustion chamber to keep the thing from melting.

[@guilldea]

sorry for not being informed but is this only a tested rocket? Because it looks rather tiny, to me, to put a capsule with several humans into a ballistic trajectory

[@Peterincan]

This is the engine for the Nexo, which is a small-scale test rocket. The manned Spica rocket will be large enough to carry one person. As far as I know there are no plans to build a rocket to carry several people.

[@guilldea]

thank you for the info :)

[@NSAwatchesME]

looked like it was leaking
bit dangerous
how do you know the optimal thickness of the steel pipe for fuel feed?

[@Test-ri2kr]

How can you tell? If you don’t mind me asking

[@Test-ri2kr]

Nvm I see it now. Towards the top of the rocket on the left there is stuff spitting out. Leaky pipe

[@jojomoman]

So how are they going to control roll? Unless there is some trick for roll control with a single motor.

[@MysteriousSteve1234]

Turbopump exhaust can always be used for roll control if using a Gas-generator engine

[@jojomoman]

no turbopump on this engine. Fuel and oxidizer delivered by compressed nitrogen or helium.

[@kylesenior]

A reaction motor perhaps?
It can't take much momentum on a long slender body to produce roll.

[@softb]

@@kylesenior fins

[@sparklauerei1]

is this a liquid hydrogen + oxygen engine?

[@sycodeathman]

Nope, the engine shown here uses liquid oxygen and ethanol as propellants. Being an amateur rocket group, dealing with liquid oxygen is about as tricky as they want to go, which put using liquid hydrogen completely out of the equation.

[@kcircuit8684]

Ethanol/LOX/H2O2

[@KiwiTalks]

Rothpol X

[@MatTheGameGuy]

0:08

[@marianandnorbert]

rip headphone users

[@gusbisbal9803]

This is a 1120 pounds of thrust. That is not that great. Until we see a 500kN then this is all deep R and D not actual engine testing.

[@Peterincan]

Actually, the manned Spica rocket will only require about 100kN of thrust to launch a person into space.

[@gusbisbal9803]

22,000 pounds of thrust? Hmmm are you sure. That seems really low. An F18 has 44,000 pounds of thrust.

[@kylesenior]

An F/A-18 weighs ~12,000 kg, a person doesn't.

[@treizemush9970]

Let's not get ahead of ourselves there bud. Any crowdfunded amateur rocketry group that can design, build, and test fire a liquid propellant rocket engine, even a modest one like this 5 kN engine, is great in my books.

[@gusbisbal9803]

Your books don't get you to orbit, thrust does.