Defence Online

Type of document: Contract Notice
Country: United Kingdom

1. Title: PROJECT CALLISTO V2
2. Awarding Authority: Ministry of Defence, GB Email: danielle.white152@mod.gov.uk. (Danielle White)
3. Contract type: Service contract
Prior Information Notice (PIN)
4. Description: Project CALLISTO v2 Prior Information Notice (PIN)
The awarding authority will be holding a Project CALLISTO Industry Day on Friday 12th June 2026, 13:00-16:30, at the specified location.
UK-based Industry partners are invited to attend to provide feedback on Project CALLISTO’s proposed scope, timescales, feasibility and requirements. Please note, Project CALLISTO is no longer linked to Project BRAKESTOP.
The User requires affordable, single use engines for current and future air systems, munitions & One Way systems, to bridge the performance gap between hobbyist, model aircraft engines and higher performance, long-life & more exquisite engines. This phase will consist of design, development and ground testing (in appropriate engine test facilities) of Qty 4 prototype engines. The engines must be affordable, scalable and any future scaled production requirement will be captured under a separate procurement.
LOT 1 CALLISTO LIGHT is for a smaller, less powerful engine (750N)
LOT 2 CALLISTO HEAVY is for a more powerful engine, (1.8-2kN)
These will be competed separately with Industry Partners welcome to bid for either, or both, Lots
For full details, including registration link for the industry day, please see the document.
5. CPV Code(s): 79314000,
6. NUTS code(s): UKE, UKE2, UKE22
7. Main site or location of works, main place of delivery or main place of performance: Tidworth Garrison Theatre, UK
8. Reference attributed by awarding authority: 715865491
9. Estimated value of requirement: Not provided.
10. Listing Deadline: 11.6.2026 (12:00:00).
11. Address to which they must be sent: You must register or log in at Web: to participate in this tender
12. Other information: Notes
Default Additional Notes
Procurement Route
Other
Contract Start Date
18/09/2026
TKR-202662-EX-1872303