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QinetiQ T7 ring-cusp ion thruster

QinetiQ's T7 is a technically distinct ring-cusp electron-bombardment gridded-ion design derived from the Kaufman-type T6. The QinetiQ design paper documents a larger diameter, changed magnetic-field and anode geometry, 5-7 kW target power, dual-mode operation, and a high-specific-impulse mode above 4,000 s; the record preserves development status without asserting current production or flight use.

Identity

Aliases
T7GIESEPP T7
Domains
spaceflight
Identity Level
model
Kind
electric-thruster
Name
QinetiQ T7 ring-cusp ion thruster
Status
development

Details

Description
QinetiQ's T7 is a technically distinct ring-cusp electron-bombardment gridded-ion design derived from the Kaufman-type T6. The QinetiQ design paper documents a larger diameter, changed magnetic-field and anode geometry, 5-7 kW target power, dual-mode operation, and a high-specific-impulse mode above 4,000 s; the record preserves development status without asserting current production or flight use.
Electric Specs
Input Power Kw Max
7
Input Power Kw Min
5
Specific Impulse SMin
4,000
Propellants
xenon

Links

Assets & Meta

Creation Time
August 15, 2026 at 03:02:21 UTC
Updated Time
August 15, 2026 at 03:02:21 UTC

Other

Sources
  • Accessed Date
    2026-08-14
    Note
    The QinetiQ/Mars Space T7 design paper distinguishes the ring-cusp magnetic field, anode geometry, and larger diameter from T6; it targets 5-7 kW, dual-mode operation, and above 4,000 s in high-specific-impulse mode.
    Publisher
    QinetiQ and Mars Space Ltd
    Title
    T7 Thruster Design and Performance
  • Accessed Date
    2026-08-14
    Note
    An ESA technical study places QinetiQ's T7 work in the ring-cusp successor development path beyond the Kaufman T5/T6 series, supporting the model's hardware boundary without adding unsupported flight or lifecycle claims.
    Publisher
    European Space Agency
    Title
    Carbon Ion Engine Technology - Executive Summary