MAKS

MAKS
Name	MAKS
Type	spaceplane
Manufacturer	Chelomey Design Bureau
First flight	1991 (prototype unmanned)
Introduced	project (1990s)
Status	cancelled

MAKS MAKS was a Soviet and Russian project for a small reusable spaceplane intended to be launched atop the Baikonur Cosmodrome's Energia-derived boosters and to be recovered like conventional Buran orbiters. Designed during the late Cold War and early post-Soviet era by the Chelomey Design Bureau, the concept aimed to reduce launch costs and increase reusability by combining an air-breathing cruise stage with a reusable orbiter. The programme intersected with contemporaneous projects at TsAGI, NPO Molniya, and institutes connected to Khrunichev State Research and Production Space Center.

Overview

The MAKS initiative emerged amid competing Soviet reusable spacecraft concepts alongside Buran, Spiral, and proposals from MKB Raduga and other bureaus. It proposed a two-stage-to-orbit configuration combining a reusable plane-like orbiter with a reusable booster/aircraft called the "carrier airplane", leveraging expertise from Chelomey on hypersonic and cruise flight. Advocates argued that MAKS could serve military missions for the Soviet Air Force, commercial satellite deployment for Gazprom Space Systems, and scientific payload delivery for organizations such as Roscosmos and the Russian Academy of Sciences. The project attracted interest from international partners and engineers with ties to TsKBM and aerodynamicists from Central Aerohydrodynamic Institute.

Design and Development

Initial design work began at Chelomey under chief designers influenced by prior work at OKB-1, Mikoyan, and Berkut teams. Development phases referenced studies from NPO Energia on expendable and reusable boosters, and from Soviet space shuttle program planning groups. Concepts examined different propulsion mixes, including kerosene/LOX stages like those used in Soyuz derivatives and combined-cycle engines inspired by research at KBKhA and TsAGI. The design team cooperated with specialists previously involved in Buran thermal protection and with avionics groups from NPO Elektroavtomatika and GosNIIAS. Funding and political backing fluctuated with endorsements from ministries such as the Ministry of General Machine-Building of the USSR and later agencies within the Russian Federation, creating a complex development environment alongside competing platforms like Angara.

Technical Specifications

MAKS was intended to be a small orbiter with dimensions and mass scaled to fit atop an Energia-derived disposable or reusable booster similar in scale to vehicles from Khrunichev State Research and Production Space Center. Payload capacity targets paralleled medium-class launchers that serviced satellites for Gorizont and Ekspress communications families, with mass-to-orbit ambitions comparable to some variants of Proton payloads. Proposed propulsion systems included variants of turbojet/ramjet combined-cycle engines studied at TsIAM and cryogenic upper stages akin to those developed by Keldysh Research Center. Aerothermal protection strategies referenced tiles and blankets evolved from Buran and Space Shuttle heritage, with structural materials drawing on alloys and composites investigated by TsNIIPromavtomatika and industrial partners like RSC Energia. Guidance, navigation, and control concepts incorporated redundancy and flight software approaches influenced by projects at GosNIIAS and avionics suites tested on Soyuz prototypes.

Flight Testing and Operational History

Flight-testing plans envisaged captive-carry and drop tests analogous to trials conducted for Space Shuttle Enterprise and flight-test campaigns run by Buran teams at sites including Baikonur Cosmodrome and Klyuchevskaya Sopka-adjacent facilities. A prototype reportedly made an unmanned approach-flight in 1991 during a period of intense budgetary strain; however, the collapse of centralized Soviet funding and the prioritization of projects such as Angara curtailed further tests. Political decisions by figures tied to ministries in Moscow and procurement priorities influenced the cancellation of the program before full-scale operational deployment. Elements of MAKS test hardware and studies were later examined by industry entities such as Tupolev, Mikoyan, and research groups formerly engaged with Chelomey.

Variants and Proposed Derivatives

Design studies produced multiple MAKS variants, including an air-launched derivative concept and a larger cargo-oriented configuration proposed to compete with expendable launchers like Proton and the emerging Angara. Other proposed derivatives explored two-stage reusable combinations influenced by prior work on Spiral and by international concepts such as the Hermes and reusable solutions investigated by European Space Agency contractors. Military adaptations for reconnaissance missions referenced sensor suites comparable to those deployed on Yantar and Resurs satellites, while commercial variants targeted deployment of telecommunications payloads similar to Gorizont and Ekspress series.

Legacy and Influence on Aerospace Programs

Although MAKS did not reach operational status, its design studies influenced later Russian reusable-launch concepts and international collaborations involving former Soviet engineers, impacting projects within Roscosmos and private ventures drawing on workforce reductions from organizations like Khrunichev State Research and Production Space Center and Energia. Technical lessons on combined-cycle propulsion, thermal protection, and integrated booster-orbiter interfaces informed research at TsAGI, Keldysh Research Center, and university labs collaborating with firms such as United Aircraft Corporation and UAC subsidiaries. MAKS remains cited in analyses of post-Soviet aerospace development, alongside contemporaneous programmes including Buran, Angara, and historical predecessors like Spiral.

Category:Spaceplanes