Author Topic: The Reaction Engines Skylon/SABRE Master Thread (7)  (Read 350227 times)

Offline Lampyridae

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #820 on: 09/15/2023 06:52 am »
Wow, HVX is now rather, um, conventional...
You mean in the sense that it's a shape that might attract funding from people like the USAFRL or CNES?

HVX is designed for military use, and to be manufacturable.

The customer seems fairly well motivated to make this an actual flight vehicle.

As always the devils in the details, specifically how well you leverage the design of the reusable parts to simplify the Stg 2 while maintaining orbital accuracy in altitude, speed and angle.

Designing a military aircraft for the Americans, step one: eliminate canards.

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #821 on: 09/15/2023 12:25 pm »
Wow, HVX is now rather, um, conventional...
HVX has always been rather conventional. It's not the NTV or a platform designed solely to test SABRE.

Offline Space OurSoul

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #822 on: 09/17/2023 09:48 pm »
"HOTOL, Skylon, and the future of the SABRE Rocket Engine"

https://www.youtube.com/watch?v=6ku4sFngNhA
A complete OurSoul

Offline jdon759

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #823 on: 09/17/2023 11:26 pm »
"HOTOL, Skylon, and the future of the SABRE Rocket Engine"

--youtube link--

Interesting video, but he has a lot of his terminology and timelines mixed up.
(Conflating LACE, RB545, and SABRE being just one error.)

I quite liked the interviews with Alan Bond though.

Offline edzieba

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #824 on: 09/19/2023 12:28 pm »
That image is not HVX, it's the notional TSTO launcher. The attached images are HVX.

Offline john smith 19

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #825 on: 09/20/2023 06:27 pm »
Designing a military aircraft for the Americans, step one: eliminate canards.
You might like to take a closer look at the B1 bomber, when it transitioned from a supersonic high altitude vehicle to a low altitude nap-of-earth flyer.
MCT ITS BFR SS. The worlds first Methane fueled FFSC engined CFRP SS structure A380 sized aerospaceplane tail sitter capable of Earth & Mars atmospheric flight.First flight to Mars by end of 2022 TBC. T&C apply. Trust nothing. Run your own #s "Extraordinary claims require extraordinary proof" R. Simberg."Competitve" means cheaper ¬cheap SCramjet proposed 1956. First +ve thrust 2004. US R&D spend to date > $10Bn. #deployed designs. Zero.

Offline t43562

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #826 on: 09/22/2023 07:21 am »
That image is not HVX, it's the notional TSTO launcher. The attached images are HVX.

It's interesting to a layman like me however that the front of both vehicles is a straight edge - a bit like a flat head screwdriver.  Not a great descrition but I hope you'll get what I'm trying to say.

Offline edzieba

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #827 on: 09/22/2023 09:58 am »
That image is not HVX, it's the notional TSTO launcher. The attached images are HVX.

It's interesting to a layman like me however that the front of both vehicles is a straight edge - a bit like a flat head screwdriver.  Not a great descrition but I hope you'll get what I'm trying to say.
That's just typical design for high-supersonic to hypersonic aircraft. When thermal concerns are a major aerodynamic design driving factor, pointy is bad. For high-hypersonics, even flat noses are too sharp and you start to see blunt forward bodies (with the design extreme being the very high hypersonic designs of re-entry vehicles).

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #828 on: 11/21/2023 08:28 pm »
That image is not HVX, it's the notional TSTO launcher. The attached images are HVX.

It's interesting to a layman like me however that the front of both vehicles is a straight edge - a bit like a flat head screwdriver.  Not a great descrition but I hope you'll get what I'm trying to say.
As I wrote, "(Attached, a concept for a reusable advanced air-breathing launch system potentially derived from HVX technologies)"

So I don't think it surprising the two are similar

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #829 on: 12/18/2023 02:22 pm »
Quote
ESA is launching a competition which initiates a first phase of activities for European companies to eventually demonstrate a complete cargo delivery service to and from space stations in low-Earth orbit by 2028.

https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Competition_developing_Europe_s_space_cargo_return_service

If Skylon had been funded, this would have been a great opportunity to propose the SPLM  :'(

Offline Alpha_Centauri

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #830 on: 12/23/2023 06:46 pm »
That image is not HVX, it's the notional TSTO launcher. The attached images are HVX.

I'm a bit late to the party, but I want to point out even that is not HVX; that is Concept V. Concept V was one of a number of vehicle concepts RE had for HVX, for example apparently there were multi-engined versions. The fact they presented this as their example of a secret project suggests it isn't close to the winning design...
« Last Edit: 12/23/2023 06:49 pm by Alpha_Centauri »

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #831 on: 12/28/2023 06:29 pm »
That image is not HVX, it's the notional TSTO launcher. The attached images are HVX.

I'm a bit late to the party, but I want to point out even that is not HVX; that is Concept V.
They are, however,  the images on the "HVX factsheet"

Offline t43562

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #832 on: 01/09/2024 03:46 pm »
I have to say we're really short of information at the moment. I wish someone from REL read this and could dole out something or other. Presumably REL haven't 100% converted into a heat exchanger/drone company yet! :-)  The government report we had a while ago on how REL spent that money was a feast of information and I might be a bit greedy but ...

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #833 on: 01/15/2024 06:45 pm »
I have to say we're really short of information at the moment.

They tend to only announce the start and the successful completion of things...

...but AFAIK, they are still working on the integrated pre-burner and HX3 (at an airport, so no sneaky drone pics  :-\)

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #834 on: 04/23/2024 08:59 pm »
Another web redesign for Reaction

They're a thermal management company now  :'(

Offline russianhalo117

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #835 on: 04/23/2024 09:10 pm »
Another web redesign for Reaction

They're a thermal management company now  :'(
Everything previous has been moved to this company division:
https://reactionengines.co.uk/markets/defence-space/

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #836 on: 04/23/2024 09:19 pm »
Another web redesign for Reaction

They're a thermal management company now  :'(
Everything previous has been moved to this company division:
https://reactionengines.co.uk/markets/defence-space/
Eventually you get to https://reactionengines.co.uk/about/sabre/ but don't bother reading about the HX3 test campaign, it's still 2022 there

Offline JCRM

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Re: The Reaction Engines Skylon/SABRE Master Thread (7)
« Reply #837 on: 04/24/2024 07:13 pm »
Another web redesign for Reaction

They're a thermal management company now  :'(
It makes sense to focus on what they make money doing,rather than what they've wanted to do for 30 years

 

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