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RX
Designer	National Institute of Aeronautics and Space
Country of origin	Indonesia
Specifications
Spacecraft type	Solid-fuel rockets
Capacity
Payload to {{{to}}}
Production
Status	Under development

The RX rocket family (Roket Eksperimental, English: Experimental Rocket) is a series of solid-fuel rockets developed by the Indonesian National Institute of Aeronautics and Space (LAPAN).

They are simply named by their diameter in millimeters; for example, the RX-250 has a diameter of 250 millimeters (9.8 in).^[1] The propellant used is HTPB-based composite propellant.

Individual boosters

This family is composed of:^[2]^[3]^[4]^[5]^[6]

Version	Diameter (mm)	Length (m)	Thrust (kN)^[3]	Burn time (s)^[3]	Specific impulse (s)^[3]	Propellant mass (kg)^[3]	Total mass (kg)	Payload (kg)	Flights	Years active^[4]	Apogee reached (km)^[4]	Range reached (km)
RX-75	75
RX-100	100	1.90		2.5			30				7	11
RX-1220	122		19.6							2015-2019		25
RX-150	150
RX-250	250	5.30	53	6.0	220		300	30–60	8	1987–2007	70–100
RX-320	320	4.74	52	9.0	220	371	532		3	2008–2014	40–42
RX-420	420		94	12.3	220	425			1	2009	43
RX-450	450	7.11	126	19.5	230	757-765	1718		5	2015-2020	44-84	129
RX-550	550		255	14	240	1519
RX-750	750
RX-980	980

Note: Characteristics in italics are design values, they have not been measured yet.

RX-250 was launched eight times from 1987 to 2007.^[4]^[7] RX-320 was launched twice in 2008^[4]^[8] and once again in 2014.^[9] RX-420 flew just once in 2009;^[10] it is superseded by RX-450 which was launched on 13 May 2015.^[11]^[12]

As of May 2016^[update], the next booster version RX-550 is under construction; the larger ones are only on the drawing board.

In 2017 successful launches of RX 450 and RX 1220 were carried out from the Space and Atmospheric Observation & Technology Testing Center at Garut, West Java.^[13] The RX 1220 is a based on the R-HAN122 B.^[13]

Two RX-1220 rockets were launched at the Karang Papak Air Force Base on December 23, 2018.^[14]

RX (Roket Eksperimental) gallery
RX-320
RX-420
RX-550

Multi-stage rockets

Once the solid boosters are fully qualified, LAPAN plans to assemble several of them into multi-stage rockets called Roket Pengorbit Satelit or RPS. Four staging configurations have been retained so far:^[15]

RPS-01 Variant 1 (ex-RPS-420)^[16]

First stage: 3 x RX-420
Second stage: 1 x RX-420
Third stage: 1 x RX-420 (shorter)
Fourth stage: 1 x RX-320
Total height: 10.00 meters (32.81 ft)

RPS-01 Variant 2b

First stage: 1 x RX-550 + 2 x RX-420
Second stage: 1 x RX-550
Third stage: 1 x RX-320
Total height: 15.75 meters (51.7 ft)

RPS-01 Variant 3a

First stage: 1 x RX-450
Second stage: 1 x RX-450
Total height: 10.75 meters (35.3 ft)

RPS-01 Variant 3b

First stage: 1 x RX-450 + 2 x RX-320
Second stage: 1 x RX-450
Third stage: 1 x RX-320
Total height: 11.75 meters (38.5 ft)

Earlier plans for the Pengorbitan-1 and -2 orbital launch vehicles (RPS-420s) were based on the RX-420 engine which was superseded by the RX-450. As of May 2016^[update], integration work is proceeding on variants 3a and 3b, whose engines have all been successfully flight-qualified.

Since 2019, LAPAN's rocket division PUSTEKROKET has collaborated with AASPT and CGWIC of China in designing newer multiple stage sounding rockets. The new rockets will be called RX-452 which combined 400 millimeters (16 in) of first stage, and 450 millimeters (18 in) of second stage. The design is based on TK-32 sounding rocket as well as RX-450. It is expected the newer design to be able to reach above 100 kilometers (62 mi), simulation showed the rocket is able to reach 200 kilometers (120 mi).^[17]

RX-452

First stage: 1 x RX-400
Second stage: 1 x RX-450
Total height: 8.6 meters (28 ft)

References

^ "LAPAN and Indonesian Rocket Program | Indomil's Blog". Indomil.wordpress.com. 2009-05-24. Retrieved 2016-02-13.
^ "RPS-01". B14643.de. Retrieved 2016-02-13.
^ ^a ^b ^c ^d ^e "RX solid rocket motors". B14643.de. Retrieved 26 May 2016.
^ ^a ^b ^c ^d ^e "LAPAN Chronology". Astronautix.com. Archived from the original on February 23, 2011. Retrieved 2016-02-13.
^ "LAPAN". www.b14643.de. Retrieved 2023-08-20.
^ "RX solid rocket motors". www.b14643.de. Retrieved 2023-08-20.
^ "RX-250-LPN". www.astronautix.com. Retrieved 2023-08-20.
^ "RX-320". www.astronautix.com. Retrieved 2023-08-20.
^ "Menuju Roket Pengorbit Satelit, RX-320 Sukses Mengudara dan RX-450 Terukur Karakteristiknya" [Towards the Satellite Orbiter Rocket, successful flight of RX-320 and performance measurements of RX-450] (Press release) (in Indonesian). LAPAN. 25 August 2014. Retrieved 25 May 2016.
^ "RX-420". www.astronautix.com. Retrieved 2023-08-20.
^ "Tahapan Menuju Roket Pengorbit Satelit, Lapan Berhasil Luncurkan RX-450" [A step towards the Satellite Orbiter Rocket, LAPAN successfully launches RX-450] (Press release) (in Indonesian). LAPAN. 14 May 2015. Retrieved 25 May 2016.
^ "RPS-01 (RX-450)". www.b14643.de. Retrieved 2023-08-20.
^ ^a ^b Goh, Deyana (2017-12-10). "Indonesia successfully launches two sounding rockets". SpaceTech Asia. Retrieved 2023-08-20.
^ Nurw (14 January 2019). "DEFENSE STUDIES: Uji Terbang Roket RX-1220 LAPAN". DEFENSE STUDIES. Retrieved 2023-08-20.
^ "RPS-01 Staging". B14643.de. Retrieved 26 May 2016.
^ "RPS-01". www.b14643.de. Retrieved 2023-08-20.
^ "Lakin Pustekroket" (PDF). kinerja.lapan.go.id. Retrieved 2020-07-28.

[wordpress1-1] "LAPAN and Indonesian Rocket Program | Indomil's Blog". Indomil.wordpress.com. 2009-05-24. Retrieved 2016-02-13.

[b2-2] "RPS-01". B14643.de. Retrieved 2016-02-13.

[b2-propulsion-3] "RX solid rocket motors". B14643.de. Retrieved 26 May 2016.

[astronautix-chrono-4] "LAPAN Chronology". Astronautix.com. Archived from the original on February 23, 2011. Retrieved 2016-02-13.

[5] "LAPAN". www.b14643.de. Retrieved 2023-08-20.

[6] "RX solid rocket motors". www.b14643.de. Retrieved 2023-08-20.

[7] "RX-250-LPN". www.astronautix.com. Retrieved 2023-08-20.

[8] "RX-320". www.astronautix.com. Retrieved 2023-08-20.

[lapan-20140825-9] "Menuju Roket Pengorbit Satelit, RX-320 Sukses Mengudara dan RX-450 Terukur Karakteristiknya" [Towards the Satellite Orbiter Rocket, successful flight of RX-320 and performance measurements of RX-450] (Press release) (in Indonesian). LAPAN. 25 August 2014. Retrieved 25 May 2016.

[10] "RX-420". www.astronautix.com. Retrieved 2023-08-20.

[11] "Tahapan Menuju Roket Pengorbit Satelit, Lapan Berhasil Luncurkan RX-450" [A step towards the Satellite Orbiter Rocket, LAPAN successfully launches RX-450] (Press release) (in Indonesian). LAPAN. 14 May 2015. Retrieved 25 May 2016.

[12] "RPS-01 (RX-450)". www.b14643.de. Retrieved 2023-08-20.

[:0-13] Goh, Deyana (2017-12-10). "Indonesia successfully launches two sounding rockets". SpaceTech Asia. Retrieved 2023-08-20.

[14] Nurw (14 January 2019). "DEFENSE STUDIES: Uji Terbang Roket RX-1220 LAPAN". DEFENSE STUDIES. Retrieved 2023-08-20.

[b2-staging-15] "RPS-01 Staging". B14643.de. Retrieved 26 May 2016.

[16] "RPS-01". www.b14643.de. Retrieved 2023-08-20.

[PUSTEKROKET-Lapan-17] "Lakin Pustekroket" (PDF). kinerja.lapan.go.id. Retrieved 2020-07-28.

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PROFILPELAJAR.COM

RX (rocket family)

Individual boosters

Multi-stage rockets

References

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