BOR-5

{{short description|Russian test flight vehicle}}

{{Infobox aircraft

|name = BOR-5

|image = File:BOR-5-monino.jpg

|caption = BOR-5 No. 502 at the Central Air Force Museum in Russia

|alt =

|type = Unmanned 1:8 scale re-entry test vehicle

|national_origin = Soviet Union

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|first_flight = 5 June 1984

|introduction =

|retired =

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|more_users =

|produced =

|number_built = 5

|program cost =

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}}

The BOR-5 ({{langx|ru|БОР-5, «Беспилотный Орбитальный Ракетоплан 5»|Bespilotnyi Orbital'nyi Raketoplan 5|lit=Unpiloted Orbital Rocketplane 5}}) is a 1:8 sized test flight vehicle, used to study the main aerodynamic, thermal, acoustic and stability characteristics of the Buran. It follows upon the BOR-4 reentry test vehicle.

It was put into a suborbital trajectory by a K65M-RB5 rocket launched from Kapustin Yar, near Volga, towards Lake Balkhash.{{Cite web |last=Krebs |first=Gunter D. |date=2024 |title=BOR-5 |url=https://space.skyrocket.de/doc_sdat/bor-5.htm |access-date=2024-05-14 |website=Gunter's Space Page |language=en}}