Proton. A History of Launch Success, A Future of InnovationILS has the knowledge and expertise to focus forward with the confidence of an experienced launch services provider.

The proven Proton Breeze M launch vehicle is a three-stage rocket with a restartable main engine on the upper stage. This rocket has been in service since 1965, and has 417 launches to date, including 96 commercial missions.

The Breeze M upper stage allows for Optimizing each mission for time and cost efficiency. Maximizing projected in-orbit lifetime for single and dual satellites. Maximizing flexibility for constellation deployments into a variety

of orbit altitudes and inclinations, providing the flexibility today’s market demands.

www.ilslaunch.com

CUSTOMER DRIVEN INNOVATION THAT’S FOCUSED FORWARD

Dedicated launch vehicle

processing facilities

Dedicated spacecraft

processing facilities

Launch complex: Pad 24 from

the Baikonur Cosmodrome

Dedicated launch site

transport system

ILS oversight into the production

line and proven processes

Proton Medium

PHONE+1 571 633 7400

FAX+1 571 633 75001875 EXPLORER STREET, SUITE 700 RESTON, VA 20190

Our Mission StatementILS creates value for our customers by providing dependable access to space through proven and innovative launch solutions.

© May 2018 ILS International Launch Services, Inc. All rights reserved.

96 Commercial Missions

417 LaunchesProton Medium

The right sizing of the Proton vehicle is an example of refining a proven system to remain highly competitive in a rapidly evolving market. Working directly with our customers and partners, ILS developed a flexible, and cost effective solution for launching medium class satellites.

KIRK PYSHER

PRESIDENT, INTERNATIONAL LAUNCH SERVICES

Proton Medium is a very elegant solution that continues to expand upon its benefits during the development phase in addressing customer’s evolving requirements. The two-stage booster provides the necessary launch characteristics needed to utilize a wide range of launch azimuths not previously available for the Proton three-stage booster from the Baikonur Cosmodrome. Launch azimuth flexibility enables Proton Medium to more efficiently target the 5 to 6 MT sweet spot for commercial GTO missions and the capability to support the high inclined low-Earth orbit constellation market.

JIM KRAMER

ILS VICE PRESIDENT, ENGINEERING AND MISSION ASSURANCE

www.ilslaunch.com

is an optimized two-stage booster version of

the heritage Proton Breeze M launch vehicle,

geared toward today’s lighter-weight

geostationary satellites and low-Earth

orbiting constellations. Flexible and affordable,

the Proton Medium utilizes the expanded

5.2 meter fairing, or standard 4.35 meter

payload fairing, and has the benefits of the

flight-proven, Proton Breeze M spacecraft

insertion history. Innovation you can count on.

THAT’S ILS.

PROTON MEDIUM

THE RIGHT-SIZED ROCKET FOR TODAY’S LIGHTER LOADS

RELIABLE. FLEXIBLE. EFFICIENT.

Ø1137

7651

13350

17800

Ø4573

Ø4693

Ø5200

Ø4350

2071

15255

10342

6066

2071

3071

Ø4350

Ø3810

Ø3867

Ø1250

500

700

Proton’s first flight as the 2-stage UR-500 in 1965.

Payload Fairing Specifications

Proton Medium: The development of this two-stage vehicle has been

simplified by focusing on eliminating the 3rd stage tank and engines.

Modifications to the remaining hardware are primarily limited to the

interstage adapter. The interstage adapter now interfaces directly with

the booster equipment bay that houses the guidance, navigation

and control (GNC) system. The length of the interstage adapter is

maintained to retain compatibility with existing Proton Breeze M ground

handling equipment. This low-cost, simplified approach, maintains

maximum hardware commonality with Proton Breeze M. Proton Medium

is essentially a recreation of the original flight proven two-stage Proton

booster (named “UR-500”) flown in the 1960s, but with the addition of

the existing Breeze M upper stage and payload fairing.

15.3 m Long4.35 m Diameter

17.8 m Long5.2 m Diameter

SECOND STAGE

• Three RD-0210 and one RD-0211 Liquid Rocket Engines — Khrunichev (Voronezh)• Thrust: 2.4 MN• Flight time: ~3.5 minutes

BREEZE M UPPER STAGE

• Gimbaled 14D30 main engine — Khrunichev (Khimmash)• Thrust: 20 kN

FIRST STAGE

• Six RD-276 Liquid Rocket Engines — Khrunichev (Perm)• Sea level thrust: 10.0 MN• Vacuum rated thrust: 11.0 MN• Flight time: ~2 minutes ∆V to GSO

=1500 m/s 5328

GSO

GTO

2710

TARGET ORBIT

∆V to GSO =1800 m/s 6029

Payload System Mass (AS + SC), kg

PLF Ø 4.35m PLF Ø 5.2m

2800

5465

6168

PAYLOAD FAIRING & ADAPTER STAGE

• Two symmetrical payload fairing halves• Composite sandwich monocoque structure• Multiple adapter and separation system configurations available• 4.35 m and 5.2 m PLF diameters available