Estimated Value
£750,000 – £0
Deadline
27 July 2026
Published
6 July 2026
Type
services
Full Description
Project CALLISTO
Requirement
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 and scalable. Any future scaled production requirement is not included under this competition, and if required shall be subject to a separate procurement.
LOTS
This procurement is split into TWO Lots
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)
Tenderers are able to bid for one or both lots.
Full details of the requirement and anticipated dates can be found in the linked ITT.
Tenderers wishing to take part must submit an ITT on the Defence Sourcing Portal no later than the specified closing date.
Requirements
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 and scalable. Any future scaled production requirement is not included under this competition, and if required shall be subject to a separate procurement.
Submission Instructions
Tenderers wishing to take part must submit an ITT on the Defence Sourcing Portal no later than the specified closing date.
AI AnalysisMembers
Requirements, key tasks and tips for reading this tender — included with Tendarix membership.
£4.99/month after a 7-day free trial. Cancel anytime before it ends and you pay nothing.
Before you bid, buyers check
two years of filed accountsyour financial standingturnover vs contract valueyour Companies House recordcash flow for 30-day termscredit scores and ratios
Actions
Start free trialto open noticeCreate an account and start a 7-day free trial to open the buyer’s own notice and tender documents, plus fit scoring and the Bid Writer. Then £4.99/month — cancel anytime.
Open Bid WriterIndependent software, web & cloud studio. We design, build and grow digital products that quietly outlast their category.
How to Apply
Step-by-step submission guide
Submission Portal
Contracts Finder
Open the original notice
Click the button below to view this tender on Contracts Finder
Find the submission method
Look for "How to apply" section — most tenders link to an eSourcing platform (e.g. In-Tend, ProContract, Jaggaer)
Create an account
Register on the eSourcing platform for free — you'll need a company email and DUNS number
Download tender documents
Download the ITT (Invitation to Tender), specification, pricing schedule, and any templates
Submit your response
Upload completed documents through the portal before the deadline — late bids are automatically rejected
Most buyers do NOT accept email submissions. You must submit through their eSourcing platform. Check the notice for the exact link.
Buyer Profile
Ministry of DefenceKey Dates
Published
6 July 2026
Submission deadline
27 July 2026
Notice type
Contract
Source
contracts finder
Related Tenders
CA18567 - RFQ 2026/43 - development of a dublin belfast economic corridor investment land guide
The DBEC Partnership wishes to appoint a suitably qualified and experienced consultant to produce an Investment Land Guide that will strengthen the Dublin Belfast Economic Corridor
CA18552 - RFQ 2026/40 - nmandd peaceplus "thriving together" - 3.2 minority community support programme - journeys & belonging
Competent consultancy companies are hereby invited to tender to design, develop and deliver a minority community support programme, that will be delivered across the Rowallane and
CA18546 - telford college - building refurbishment design services
The design team will be commissioned to deliver RIBA Stages 2 - 4, including the development of a comprehensive tender specification for the appointment of the Advanced Technology
CA18539 - provision of project management & cost consultant services
Bedford College is seeking an efficient, high quality Project Management & Cost Consultant Service to provide full Project Management & Cost Consultant support on all Colle
