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BAE Systems PHASA-35

Electric aircraft

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionDec 9, 2025
Entity authorityQ97188535 ↗
Source-derived summary

The BAE Systems Persistent High Altitude Solar Aircraft (PHASA-35) is a High-Altitude Long Endurance (HALE) unmanned aerial vehicle (UAV) developed by BAE Systems in collaboration with Prismatic. Designed as a cheaper alternative to satellites, the aircraft can be used for surveillance, border control, communications and disaster relief with a potential ability to stay airborne for up to 12 months. Developed in less than two years, the aircraft carried out its first flight in February 2020 and further trials are currently ongoing.

Development

PHASA-35 was originally designed and developed by engineers who had previously worked on the Zephyr HAPS drone for Qinetiq. When Qinetiq sold Zephyr to Airbus Defence and Space in 2013, these engineers left and formed their own company, named Prismatic, to develop a rival aircraft. Development of PHASA-35 consequently began in 2018, in collaboration with BAE Systems, and a first flight was scheduled for 2019. Prior to this, a quarter-scale model, named the PHASE-8, completed a successful first flight in 2017. In September 2019, BAE Systems acquired Prismatic as a subsidiary. After less than two years in development, the PHASA-35 made its maiden flight on 17 February 2020 at the Woomera Test Range in Australia with support from the UK's Defence Science and Technology Laboratory and Australian Defence Science and Technology Group. Further trials commenced and, in October 2020, the aircraft carried out an endurance trial whilst carrying a sensor payload.

Editorial summary

This brief starts where responsible research should: with the source description of “BAE Systems PHASA-35” as electric aircraft. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—2020, 2013, 2018, 2019—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Systems, PHASA-35 and Electric can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as electric aircraft. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Dec 9, 2025. The linked authority identifier is Q97188535. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2020, 2013, 2018 and 2019.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  2. Expand the search: follow BAE Systems PHASA-35 primary sources, BAE Systems PHASA-35 archive and Systems research across catalogues and specialist indexes.
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Source & attribution

This entry incorporates text from “BAE Systems PHASA-35” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.