--- title: Four Choppers And A Blimp: The Bizarre Piasecki Helistat description: The Piasecki PA-97 Helistat was a bizarre hybrid aircraft commissioned by the U.S. Forest Service in the early 1980s, combining a salvaged Navy blimp gas bag... canonical: https://daily.dev/posts/four-choppers-and-a-blimp-the-bizarre-piasecki-helistat-u5rb9rmsb twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Four Choppers And A Blimp: The Bizarre Piasecki Helistat | daily.dev og:description: The Piasecki PA-97 Helistat was a bizarre hybrid aircraft commissioned by the U.S. Forest Service in the early 1980s, combining a salvaged Navy blimp gas bag... og:url: https://daily.dev/posts/four-choppers-and-a-blimp-the-bizarre-piasecki-helistat-u5rb9rmsb og:image: https://api.daily.dev/og/posts/u5rb9rmSB.png og:image:alt: Four Choppers And A Blimp: The Bizarre Piasecki Helistat og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Four Choppers And A Blimp: The Bizarre Piasecki Helistat **[Hackaday](https://daily.dev/sources/hackaday)** · 11 min read · 0 upvotes · 0 comments ## Summary The Piasecki PA-97 Helistat was a bizarre hybrid aircraft commissioned by the U.S. Forest Service in the early 1980s, combining a salvaged Navy blimp gas bag with four Vietnam-era Sikorsky H-34 helicopters bolted to an aluminum frame. Designed by Frank Piasecki — ironically, a pioneer of heavy-lift helicopters whose work helped end the airship era — the craft was intended to haul 25 tonnes of timber from remote forests more fuel-efficiently than conventional helicopters. Despite 15 successful untethered test flights, the program ended catastrophically on July 1, 1986, when wheel shimmy triggered a resonance failure that shook the aircraft apart mid-flight, killing test pilot Gary Oleshfski. The project, which ballooned from a $25M to $100M budget, was immediately cancelled. Subsequent revival attempts, including a Boeing-partnered Canadian venture called SkyHook, failed to attract investors. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Hackaday Europe 2026: Half Quad, Half Blimp: Test. Fly. 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