Author Topic: Ukrainian Cyclone 4 Launch Operations will be Established in North America  (Read 35747 times)

Offline robertross

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Public, environment will be safe even if rocket launch fails, says company

"Launch failure early in flight could blow a 10-metre-deep crater in the granite near Canso, N.S."

https://www.cbc.ca/news/canada/nova-scotia/canso-rocket-launching-facility-focus-report-1.5065516

The 475-page report tackles questions about accident and malfunction scenarios, the use of what the department called "highly toxic" chemicals and the potential impact of the project on air, water, soil, humans and wildlife.


(report attached)
Remembering those who made the ultimate sacrifice for our rights & freedoms, and for those injured, visible or otherwise, in that fight.

Online libra

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Storable propellants are now unwelcome everywhere outside Russia, (except for upper stages like Aestus, and even). But the Zenit had a RD-120 kerolox stage... and that Ukranian launcher uses RD-120 technology in its first stage engines. Make no sense to use the old hypergol stage from Cyclone / Tsyklon. Better to graft a Zenit stage 2 on it, to get a 100% kerolox launcher.

Offline PM3

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Storable liquid propellants actually are used for propulsion in many payloads. Large satellites may carry 1-2 t of the same highly toxic stuff that is used in the Cyclone upper stage, and AFAIK the ISS transport vehicles like Dragon can store a similar amount.

Every spaceport stores, handles and launches hydrazine; it is regularly transported to the spaceports. The difference for the Cyclone is the quantity: For a hydrazine-fueled payload, it carries ~ 10 times more of that stuff with each launch than a similar-sized modern rocket with RP1 or Hydrogen fuel. (And the trend goes to more efficient and non-toxic payload propulsion ...)
« Last Edit: 03/23/2019 04:15 pm by PM3 »

Offline GWR64

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...The difference for the Cyclone is the quantity:...

The Cyclone 4M second stage holds 10 or 11 tons of toxic fuel.
The Ariane 5ES too.
And the Ariane 4..., everyone says she was great.

The second stage and the fairing for the Cyclone 4M coming from Cyclone 4.
The interstage has been adjusted to the larger diameter of the first stage.
Only the RD-861K is available for the upper stage. And even of this, test engines are to be refreshed first.
(I once read somewhere, certain materials are missing)
It is planned to develop a kerosene upper-stage-engine from the RD-861K and the RD-8 (kerosene steering engine on the Zenit) but ...

The RD-120 is too big for the second stage. Parts are from Russia. The combustion chamber came from Metallist Samara.

For the first stage, the ukrainian parts of the RD-120 should combined with old RD-263 combustion chambers. Some are still stored in Ukraine.
The RD-263 was used in the R36M missile.
And the RD-263 sister engine RD-268, from the MR-UR-100 missile, was the predecessor of the RD-120 kerosene engine.

Many questions remain. 
« Last Edit: 03/29/2019 09:56 am by GWR64 »

Offline Patchouli

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Storable liquid propellants actually are used for propulsion in many payloads. Large satellites may carry 1-2 t of the same highly toxic stuff that is used in the Cyclone upper stage, and AFAIK the ISS transport vehicles like Dragon can store a similar amount.

Every spaceport stores, handles and launches hydrazine; it is regularly transported to the spaceports. The difference for the Cyclone is the quantity: For a hydrazine-fueled payload, it carries ~ 10 times more of that stuff with each launch than a similar-sized modern rocket with RP1 or Hydrogen fuel. (And the trend goes to more efficient and non-toxic payload propulsion ...)

Shuttle carried about 8 tons of MMH and the Orion service module about 9tons.

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