Sunfire III Hot Fire - All Footage

We are excited to announce that on the 14th March, we successfully hot fired our Sunfire III regeneratively cooled engine three times! The engine achieved the highest thrust out of any UK collegiate team with a thrust of 4.4kN.
Test 1: 3.6kN burn for 2 seconds
Test 2: 3.8kN burn for 5 seconds
Test 3: 4.4kN burn for 3 seconds
The AlSi10Mg engine was designed for 3.5kN and was pushed beyond its design point without any cooling issues. We’re looking forward to re-firing the engine later this year!
Many thanks to Aconity3D GmbH for their support and printing the engine in their AlSi10Mg performance alloy. The success of this engine demonstrates the capability of Aconity3D GmbH's printing for high performance applications.
Huge thank you to Airborne Engineering Ltd for the help with firing on the day providing their expertise and use of their test stand. We’re looking forward to firing more engines at airborne in the future.
#engineering #sheffield #universityofsheffield #space #rocketry #propulsion

[@no-damn-alias]

Looks like that'll be a good tailgater deterrent

[@cheezysot]

And so it really would be

[@Rama_--_]

Wow 😲 this engine is awesome having a super roar sound with incredible thrust. Amazing!!

[@jonv.6213]

Those shock diamonds are T O P tier. Great work.

[@PiDsPagePrototypes]

First test, 'yeah, nice',... Last test 'Wholly Fcuk YEEESSSSS'.!!

[@ProjectSunride]

Yeah!!

[@jasonhull5712]

Wow. That’s amazing and terrifying at the same time. 😮
Very cool.
Love the purging sounds.

[@BrainiacManiac142]

An amazing achievement!

[@brettbartlett5960]

Awesome job!

[@defencebangladesh4068]

Amazing

[@silkabhattacharya8799]

Absolutely incredible!

[@bailey125]

Ok now this is epic

[@bctpcp9546]

man, check those shock diamonds!

[@basic-decaf]

That's a lot of thermocouples. What type? Are they measuring EGT or wall temperatures? Aren't they too slow to yield any meaningful data for a 3-sec test?

[@levyludeke2945]

congrats!

[@FunnyGuyexe4]

Damn the sounds' so cool

[@redTanto]

3d printed? How was it sintered? sps?

[@tom5051666]

can this be mounted to a family sedan?

[@user-xf4xz5bv5j]

❤❤

[@jhonsiders6077]

So can it be fired for longer ?

[@gregwarner3753]

What is the Specific Impulse? Fuel/oxidizer combinations?

[@huwale]

what stage is this designed for?

[@SmokyPrawn49634]

sounds like wubzzys casual scream

[@truestopguardatruestop164]

What fuel does it burn?

[@-xirx-]

I am very curious, too

[@joshplayzgamezz]

magical expensive fuel

[@PiDsPagePrototypes]

The tears of lesser engineers

[@ProjectSunride]

Nitrous Oxide and Isopropyl Alcohol 🔥

[@PiDsPagePrototypes]

@@ProjectSunride Getting sponsored by NOS? :)
Also, that's pretty damn low cost fuel compared to some of the exotic stuff.

[@ayoksusune8095]

Turbo pump semprot dari samping putaran tak terbas ha

[@truestopguardatruestop164]

How is this even possible?

[@dubsar]

PORCH THIEVES, FEAR ME!

[@jerminemhyne4620]

Hot fire it for atleast 20 secs

[@ProjectSunride]

We're planning to hot fire it for longer in July!

[@stevos7111]

Batmobile Engine......

[@manygoddess88]

悟空の掌のほうがまだ手強かった。

[@deankelz29]

doesnt seem that powerful 🤣

[@bishop8958]

Compared to other rocket engines, it's not that strong, only intended for 3.5kN, but that's still strong enough to bring a car from 0 to 60 in about 9 seconds depending on the weight of the car. And even then, they were firing it at 4.4kN, which is above its intended specifications.

[@deankelz29]

@@bishop8958 i was being sarcastic it seems rather powerful lol but yeah thanks for the info

[@bishop8958]

@deankelz29 Ah my bad, sarcasm is hard sometimes on the internet.