Atlas V
Versions
List date: October 17, 2018 Mass to LEO numbers are at an inclination of 28.5°.

Atlas V

Section Title: Versions
Table Section Text: List date: October 17, 2018 Mass to LEO numbers are at an inclination of 28.5°.

Version	Fairing	CCBs	SRBs	Upper stage	Payload to LEO, kg	Payload to GTO, kg	Launches to date	Base price

401	4 m	1	–	SEC	9,797	4,750	38	$109M

402	4 m	1	–	DEC	12,500	–	0	–

411	4 m	1	1	SEC	12,150	5,950	5	$115M

412	4 m	1	1	DEC	–	–	0	–

421	4 m	1	2	SEC	14,067	6,890	7	$123M

422	4 m	1	2	DEC	–	–	0	–

431	4 m	1	3	SEC	15,718	7,700	3	$130M

501	5.4 m	1	–	SEC	8,123	3,775	6	$120M

502	5.4 m	1	–	DEC	–	–	0	–

511	5.4 m	1	1	SEC	10,986	5,250	0	$130M

512	5.4 m	1	1	DEC	–	–	0	–

521	5.4 m	1	2	SEC	13,490	6,475	2	$135M

522	5.4 m	1	2	DEC	–	–	0	–

531	5.4 m	1	3	SEC	15,575	7,475	3	$140M

532	5.4 m	1	3	DEC	–	–	0	–

541	5.4 m	1	4	SEC	17,443	8,290	6	$145M

542	5.4 m	1	4	DEC	–	–	0	–

551	5.4 m	1	5	SEC	18,814	8,900	9	$153M

552	5.4 m	1	5	DEC	20,520	–	0	–

Heavy (HLV / 5H1)	5.4 m	3	–	SEC	–	–	0	–

Heavy (HLV DEC / 5H2)	5.4 m	3	–	DEC	29,400	–	0	–

N22 (for Starliner)	None	1	2	DEC	~13,000 (to ISS)	–	0	–

Sentence(s)

An Atlas V 552 has 5 solid rocket boosters, whereas an Atlas V 431 has a 4-meter fairing, 3 solid rocket boosters and 1 Centaur engine.

final_sentence: An Atlas V 552 has 5 solid rocket boosters, whereas an Atlas V 431 has a 4-meter fairing, 3 solid rocket boosters and 1 Centaur engine.