Private company

Piasecki Aircraft Corporation

Logo: https://piasecki.com/wp-content/uploads/2021/01/piasecki_transparent.png, Non-free logo, via Wikipedia3

American aircraft producer

The Piasecki Aircraft Corporation (PiAC) is a manufacturer of aircraft, principally advanced rotorcraft. It was founded by American vertical flight pioneer Frank Piasecki to develop compound helicopters and other advanced rotorcraft after he was ousted from the leadership of his first company, Piasecki Helicopter.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1940Founded1
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Photo: Mytwocents ( talk ) 00:13, 6 February 2008 (UTC), Public domain, via Wikimedia Commons5

The Piasecki Aircraft Corporation (PiAC) is a manufacturer of aircraft, principally advanced rotorcraft. It was founded by American vertical flight pioneer Frank Piasecki to develop compound helicopters and other advanced rotorcraft after he was ousted from the leadership of his first company, Piasecki Helicopter.2

The story

Founded by Frank Piasecki in 1940.1

The company's origins dated back to 1936 with the formation of the P-V Engineering Forum in 1940 and it was renamed the Piasecki Helicopter Corporation in 1946. After a falling-out with other owners, Frank Piasecki and some of his design team left to form Piasecki Aircraft Corporation in 1955.

The Piasecki Aircraft Corporation is based in Essington, Pennsylvania and is run by Frank Piasecki's sons; Frederick Weyerhaeuser Piasecki is chairman and John Weyerhaeuser Piasecki is president and CEO.

In 2005, the company was selected by the United States Army as the prime contractor for two Future Combat Systems (FCS) unmanned aerial vehicle (UAV) systems The FCS Class III UAV system contract was awarded to the company in late 2006 following a competitive downselect of four competing technologies. As part of that effort, the company flew the world's first autonomous autogyro.

The company was the successful bidder when the US Navy's Naval Air Systems Command awarded a demonstration contract to serve as a testbed to validate the "Vectored Thrust Ducted Propeller" system. Piasecki developed and flight-tested the X-49 experimental compound helicopter, with its first flight in 2007, later completing all Phase 1 requirements.

Piasecki bid on the Future Vertical Lift program, but was not chosen when that project moved into its Joint Multi-Role Technology Demonstrator (JMR-TD) phase in 2013.

In December 2018, Piasecki announced Air Scout unmanned air system (UAS), it is designed to meet emerging cargo logistics requirements consistent with UAS Classification Group 3. Air Scout is sized at 300lbs, with payload potential of 50-150 lbs.

In 2021, the Telemedicine and Advanced Technology Research Center adopted Piasecki's Mobile Multiple Mission Module (M4) as their research asset. M4 was designed to accommodate cargo, patients, troops or a combination of any of these with its rapidly reconfigurable interior. It was planned to be flown using the Aerial Reconfigurable Embedded System (ARES) in 2023.

Piasecki is working for the PA-890, an electric powered helicopter with targets for lower operating cost, reduced noise, and zero direct emissions. The airport is featured in the March/April 2021 Vertiflite magazine.

From Wikipedia’s article on Piasecki Aircraft, shared under CC BY-SA 4.0.4

Leadership

Who has led Piasecki Aircraft Corporation, and when. Pick a name to see everywhere that person has worked.

Products and brands

  • helicopter

Listed on Wikidata.1

Timeline

  1. 1940Founded Founded1

Funding

Where the company's money came from, by calendar year: private offerings filed with the SEC, federal grants, loans, contracts and other assistance from USAspending.gov, and PPP loans from the SBA. Each bar links to the records below.

Money received by year$98.0M 2008–2025
Without federal contracts$1.3M 2023–2024
Without federal contractsWithout federal contracts, 2023–2024: $1.3M in all. Federal grants $1.3M.$0$500K$1M$1.5M2023 · Federal grants: $199.9K20232024 · Federal grants: $1.1M2024
Figures by year
YearFederal grantsFederal contractsTotal
2025–$2.8M$2.8M
2024$1.1M$3.4M$4.5M
2023$199.9K$13.8M$14.0M
2022–$12.2M$12.2M
2021–$13.4M$13.4M
2020–$9.4M$9.4M
2019–$8.8M$8.8M
2018–$5.9M$5.9M
2017–$4.4M$4.4M
2016–$2.4M$2.4M
2015–$869.4K$869.4K
2014–$203.7K$203.7K
2013–$729.4K$729.4K
2012–$427.9K$427.9K
2011–$967.6K$967.6K
2010–$4.1M$4.1M
2009–$7.9M$7.9M
2008–$4.9M$4.9M

Federal awards

Obligated amounts from USAspending.gov6, by calendar year, 2008–2025, for its registration. Obligations are what agencies committed, not always what was paid out. Contracts pay for goods and services; grants, loans and direct payments are assistance. Loans are charted at the face value of the loans listed here. An award’s amount below is its lifetime total, and some began before the years charted.

Largest grants

  1. Jul 10, 2023$1.3M from Department of Energy: Office Of Science Financial Assistance Program7 To PIASECKI AIRCRAFT CORP Award DESC0023929

Largest contracts

  1. Feb 28, 2017$38.8M from Department of the Army: Igf::ot::igf piasecki aircraft corp sbir ph iii8 To PIASECKI AIRCRAFT CORP Award 0001
  2. Oct 1, 2000$31.0M from Defense Contract Management Agency: Naval air systems command piasecki aircraft corporation west terminus of stree essington pa essington delaware penn rdte/aircraft-adv tech d9 To PIASECKI AIRCRAFT CORP Award N0001900C0284
  3. May 7, 2004$30.9M from Department of the Army: Aviation applied technology piasecki aircraft corporation west terminus of stree essington pa essington delaware penn rdte/aircraft-adv tech10 To PIASECKI AIRCRAFT CORP Award 0001
  4. Jul 25, 2022$5.2M from Department of the Air Force: Ares flight control system development and ground testing11 To PIASECKI AIRCRAFT CORP Award FA865022C2204
  5. Oct 31, 2023$4.9M from Defense Advanced Research Projects Agency: Speed and runway independent technologies (sprint)12 To PIASECKI AIRCRAFT CORP Award HR001124C0326