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08.05.2024 17:56:37

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Пилотируемые полеты / Освоение Луны

Последний ответ от Димитър - Сегодня в 17:53:27

Цитата: Дем от Сегодня в 16:18:35А пока никто не знает, какие там на Луне большие камни..

Разве!? Луноходы не снимали, астронавты не трогали?

Прикладная космонавтика / Starlink Fl163 Group 8-2 (V2 M...

Последний ответ от zandr - Сегодня в 17:42:54

Да. Забыл, что запуск не с восточного, а с западного побережья.

Планы космических пусков / План американских космических ...

Последний ответ от zandr - Сегодня в 17:38:56

https://www.spacex.com/launches/mission/?missionId=sl-6-56

ЦитироватьSpaceX is targeting Wednesday, May 8 for a Falcon 9 launch of 23 Starlink satellites to low-Earth orbit from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. Liftoff is targeted for 1:34 p.m. ET, with backup opportunities available until 2:42 p.m. ET. If needed, additional opportunities are also available on Thursday, May 9 starting at 10:16 a.m. ET...

Прикладная космонавтика / Starlink Fl162 Group 6-56 (V2 ...

Последний ответ от zandr - Сегодня в 17:38:30

На 8-ое запасное
https://www.spacex.com/launches/mission/?missionId=sl-6-56

ЦитироватьSpaceX is targeting Wednesday, May 8 for a Falcon 9 launch of 23 Starlink satellites to low-Earth orbit from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. Liftoff is targeted for 1:34 p.m. ET, with backup opportunities available until 2:42 p.m. ET. If needed, additional opportunities are also available on Thursday, May 9 starting at 10:16 a.m. ET...

Прикладная космонавтика / Starlink Fl162 Group 6-56 (V2 ...

Последний ответ от zandr - Сегодня в 17:20:44

https://celestrak.org/NORAD/elements/supplemental/

ЦитироватьStarlink G6-56 Pre-Launch
Derived from a pre-launch Starlink-G6-56 state vector, provided by SpaceX. SupGP data is provided for the entire stack, as well as one for a single satellite.
Launch: 2024-05-08 15:00:00 UTC.
Deploy: 2024-05-08 16:05:39.280 UTC.

Backup Launch Opportunity #1
Launch: 2024-05-08 15:14:00 UTC.
Deploy: 2024-05-08 16:19:39.280 UTC.
Спойлер
Backup Launch Opportunity #2
Launch: 2024-05-08 15:34:00 UTC.
Deploy: 2024-05-08 16:39:39.280 UTC.
Backup Launch Opportunity #3
Launch: 2024-05-08 15:40:00 UTC.
Deploy: 2024-05-08 16:45:39.280 UTC.
Backup Launch Opportunity #4
Launch: 2024-05-08 15:54:00 UTC.
Deploy: 2024-05-08 16:59:39.280 UTC.
Backup Launch Opportunity #5
Launch: 2024-05-08 16:08:00 UTC.
Deploy: 2024-05-08 17:13:39.280 UTC.
Backup Launch Opportunity #6
Launch: 2024-05-08 17:14:00 UTC.
Deploy: 2024-05-08 18:19:39.280 UTC.
Backup Launch Opportunity #7
Launch: 2024-05-08 17:20:00 UTC.
Deploy: 2024-05-08 18:25:39.280 UTC.
Backup Launch Opportunity #8
Launch: 2024-05-08 17:34:00 UTC.
Deploy: 2024-05-08 18:39:39.280 UTC.
Backup Launch Opportunity #9
Launch: 2024-05-08 17:48:00 UTC.
Deploy: 2024-05-08 18:53:39.280 UTC.
Backup Launch Opportunity #10
Launch: 2024-05-08 18:10:00 UTC.
Deploy: 2024-05-08 19:15:39.280 UTC.
Backup Launch Opportunity #11
Launch: 2024-05-08 18:38:00 UTC.
Deploy: 2024-05-08 19:43:39.280 UTC.
Backup Launch Opportunity #12
Launch: 2024-05-08 18:42:00 UTC.
Deploy: 2024-05-08 19:47:39.280 UTC.
[свернуть]

Основное время запуска и 12 запасных.

Космонавтика - ее история, назначение и перспективы / Ракетные двигатели Индии

Последний ответ от C-300-2 - Сегодня в 17:15:34

О! Йоги провели ОСИ стендового макета ЖРД СКЕ-200 (разрабатывается для модернизированной ЛВМ-3, раньше её называли ГСЛВ Мк3). По сути - аналог нашего РД-191. Исходя из фото и описания, макет представлял собой совокупность КС, ГГ, арматуры. Зажигание было химическим (что вполне традиционно) смесью, по описанию похожей на наше ПГ-2 - смесь триэтилбора и триэтилалюминия. Как я понял из описания, зажигание было плавным и устойчивым.

ЦитироватьMay 6, 2024
ISRO is developing a 2000 kN thrust semi-cryogenic engine working on an LOX Kerosene propellant combination for enhancing the payload capability of LVM3 and for future launch vehicles. Liquid Propulsion Systems Centre (LPSC) is the lead centre for the development of semi-cryogenic propulsion systems with the support of other launch vehicle centres of ISRO. The assembly and testing of the propulsion modules were done at the ISRO propulsion complex (IPRC), Mahendragiri. As part of the engine development, a pre-burner ignition test article, which is a full complement of the engine power head system excluding the turbopumps is realized. The first ignition trial was conducted successfully on May 2, 2024, at semi cryo integrated engine test facility (SIET) at IPRC, Mahendragiri, which was dedicated to the nation recently by the honorable Prime Minister of India. Smooth and sustained ignition of the preburner is demonstrated which is vital for the starting of the semi-cryogenic engine.
Semi-cryogenic engine ignition is achieved using a start fuel ampule which uses a combination of Triethyle Alumnide and Triethyle Boron developed by VSSC and used for the first time in ISRO in the 2000 kN semi-cryogenic engine. Many injector elemental level ignition tests were conducted at the Propulsion Research Laboratory Division (PRLD) facility of Vikram Sarabhai Space Centre (VSSC) for characterization. The ignition process is one of the most critical parts in the development of liquid rocket engine systems. With the successful ignition of the semi-cryo pre burner, a major milestone in the semi-cryo engine development has been achieved. This will be followed by development tests on the engine powerhead test article and fully integrated engine. The development of a semi-cryo stage with 120 tons of propellant loading is also under progress.
The successful ignition of a semi-cryo preburner is a major accomplishment of ISRO in the development of semi-cryogenic propulsion systems.

https://www.isro.gov.in/Successful_ignition_test_on_semi_cryogenic_PITA.html