Technology will deliver greater cooling capacity to support advanced mission systems on the F-35 and future defense and commercial aircraft.  WINDSOR LOCKS, Conn., Aug. 24, 2026 /PRNewswire/ -- Collins Aerospace, an RTX

<p xmlns="http://www.w3.org/1999/xhtml"><i xmlns="http://www.w3.org/1999/xhtml">Technology will deliver greater cooling capacity to support</i> <i xmlns="http://www.w3.org/1999/xhtml">advanced mission systems</i> <i xmlns="http://www.w3.org/1999/xhtml">on the F-35 and future defense and commercial aircraft.</i>  </p><p xmlns="http://www.w3.org/1999/xhtml"><span xmlns="http://www.w3.org/1999/xhtml" class="legendSpanClass">WINDSOR LOCKS, Conn.</span>, <span xmlns="http://www.w3.org/1999/xhtml" class="legendSpanClass">Aug. 24, 2026</span> /PRNewswire/ -- Collins Aerospace, an RTX (NYSE:<a class="ticker" href="https://www.benzinga.com/quote/RTX">RTX</a>) business, successfully completed altitude testing of its next generation Power and Thermal Management System (PTMS), the Enhanced Power and Cooling System (EPACS).</p>
<p xmlns="http://www.w3.org/1999/xhtml">Designed to enhance the F-35&#39;s power and thermal management, the EPACS system delivers significantly increased cooling capacity to meet the demands of today and tomorrow. By providing the critical thermal margin required to support planned technology upgrades, EPACS ensures the F-35 remains at the cutting edge of performance throughout its entire lifecycle.</p><p xmlns="http://www.w3.org/1999/xhtml">&#34;Successful altitude testing validates system performance in real-world flight conditions,&#34; says Ira Grimmett, vice president, Environmental &amp; Airframe Control Systems for Power &amp; Controls at Collins Aerospace. &#34;Completing this phase of testing advances EPACS maturity and reinforces confidence in the system&#39;s capability and performance.&#34;   </p><p xmlns="http://www.w3.org/1999/xhtml">Altitude testing is a critical element of early development and risk reduction for a new PTMS. The system was run for several days at power levels replicating mission requirements. It was pushed to operational limits in various altitudes to collect performance data and demonstrate that EPACS can deliver the emergency power expected during operation. This test validates system performance models.    </p><p xmlns="http://www.w3.org/1999/xhtml">This latest milestone follows Collins&#39; announcement in 2025 that EPACS <a xmlns="http://www.w3.org/1999/xhtml" href="https://edge.prnewswire.com/c/link/?t=0&amp;l=en&amp;o=4757469-1&amp;h=4099092242&amp;u=https%3A%2F%2Fwww.rtx.com%2Fnews%2Fnews-center%2F2025%2F02%2F28%2Frtxs-collins-aerospace-epacs-power-and-thermal-management-system-ready-for-aircr&amp;a=met+requirements+for+aircraft+integration." target="_blank" rel="nofollow">met requirements for aircraft integration.</a>  </p><p xmlns="http://www.w3.org/1999/xhtml"><b xmlns="http://www.w3.org/1999/xhtml">About Collins Aerospace </b>    <br xmlns="http://www.w3.org/1999/xhtml"></br><span xmlns="http://www.w3.org/1999/xhtml">Collins Aerospace, an RTX business, is a leader in integrated and intelligent solutions for the global aerospace and defense industry. Our 80,000 employees are dedicated to delivering future-focused technologies to advance sustainable and connected aviation, passenger safety and comfort, mission success, space exploration, and more.    </span></p><p xmlns="http://www.w3.org/1999/xhtml"><b xmlns="http://www.w3.org/1999/xhtml">About RTX</b>    <br xmlns="http://www.w3.org/1999/xhtml"></br><span xmlns="http://www.w3.org/1999/xhtml">With more than 180,000 global employees, we push the limits of technology and science to redefine how we connect and protect our world. With industry-leading capabilities, we advance aviation, engineer integrated defense systems for operational success, and develop next-generation technology solutions and manufacturing to help global customers address their most critical challenges. The company, with 2025 sales of more than $88 billion, is headquartered in Arlington, Virginia.      </span></p><p xmlns="http://www.w3.org/1999/xhtml"><b xmlns="http://www.w3.org/1999/xhtml">For questions or to schedule an interview, please contact </b><a xmlns="http://www.w3.org/1999/xhtml" href="mailto:corporatepr@rtx.com" target="_blank" rel="nofollow"><b xmlns="http://www.w3.org/1999/xhtml">corporatepr@rtx.com</b></a>.    </p>



<p xmlns="http://www.w3.org/1999/xhtml" id="PURL"><img xmlns="http://www.w3.org/1999/xhtml" title="Cision" width="12" height="12" alt="Cision" src="https://edge.prnewswire.com/c/img/favicon.png?sn=NE31531&amp;sd=2026-08-24"></img> View original content:<a xmlns="http://www.w3.org/1999/xhtml" id="PRNURL" rel="nofollow" href="https://www.prnewswire.com/news-releases/rtxs-collins-aerospace-epacs-power-and-thermal-management-system-completes-altitude-testing-302857686.html" target="_blank">https://www.prnewswire.com/news-releases/rtxs-collins-aerospace-epacs-power-and-thermal-management-system-completes-altitude-testing-302857686.html</a></p><p xmlns="http://www.w3.org/1999/xhtml">SOURCE RTX</p>

RTX's Collins Aerospace EPACS power and thermal management system completes altitude testing

RTX Collins EPACS altitude test advances F-35 upgrades and defense opportunities

<section class="insight" data-version="1">
  <section data-block="information">
    <h3>Information</h3>
    <p>Technology will deliver greater cooling capacity to support advanced mission systems on the F-35 and future defense and commercial aircraft.  WINDSOR LOCKS, Conn., Aug. 24, 2026 /PRNewswire/ -- Collins Aerospace, an RTX</p>
  </section>

  <section data-block="ai-summary-paragraph">
    <h3>AI Summary</h3>
    <p>RTX&#039;s Collins Aerospace reports altitude testing success for the Enhanced Power and Cooling System (EPACS), part of the PTMS. The milestone strengthens thermal margins for the F-35 and future airframes, supporting planned technology upgrades and potential future orders in defense and commercial markets.</p>
  </section>

  <section data-block="ai-summary-bullets">
    <h3>Key Points</h3>
    <ul><li>Collins Aerospace completes altitude testing of EPACS for PTMS on F-35 and future aircraft.</li><li>EPACS increases cooling capacity and thermal margin to support upgrades and lifecycle performance.</li><li>Milestone follows 2025 claim that EPACS met aircraft integration requirements.</li><li>RTX highlights Collins Aerospace as a defense tech leader amid a high-growth aerospace backlog.</li></ul>
  </section>

  <section data-block="companies-mentioned">
    <h3>Companies Mentioned</h3>
    <ul><li><strong>Collins Aerospace (RTX)</strong>: RTX subsidiary; milestone validates EPACS readiness and supports F-35 upgrades and broader flight-control tech.</li><li><strong>RTX (RTX)</strong>: Parent company; defense and aerospace platform benefiting from Collins EPACS progress and related program momentum.</li></ul>
  </section>

  <section data-block="category">
    <h3>Industry News</h3>
    <p>Category: Industry News. This press release milestone highlights a technical advancement within RTX&#039;s Collins Aerospace, with implications for defense program execution, backlog, and competitiveness in the aerospace stack.</p>
  </section>

  <section data-block="market-moving">
    <h3>Market-Moving</h3>
    <ul><li>EPACS milestone may lift near-term sentiment on RTX&#039;s defense segment and Collins&#039; backlog visibility.</li><li>Positive testing outcomes could influence government program appetite for Collins Aerospace systems.</li><li>No immediate contract announcement; potential uplift hinges on follow-on orders and integration milestones.</li></ul>
  </section>

  <section data-block="key-facts">
    <h3>Key Facts</h3>
    <ul><li>Date: Aug 24, 2026; Collins Aerospace completes altitude testing of EPACS.</li><li>EPACS stands for Enhanced Power and Cooling System within Collins&#039; Power &amp; Controls PTMS.</li><li>Testing ran for several days at mission-level power and varied altitudes.</li><li>2025 milestone: EPACS met requirements for aircraft integration.</li><li>RTX is the parent company; Collins Aerospace employs ~80,000; RTX group ~180,000 employees; 2025 sales &gt; $88 billion.</li></ul>
  </section>

  <section data-block="trading-thesis">
    <h3>Trading Thesis</h3>
    <p>Bullish near-term for RTX on Collins EPACS progress; strengthens defense portfolio and backlog visibility within 12 months.</p>
  </section>
</section>


<p xmlns="http://www.w3.org/1999/xhtml"><i xmlns="http://www.w3.org/1999/xhtml">Technology will deliver greater cooling capacity to support</i> <i xmlns="http://www.w3.org/1999/xhtml">advanced mission systems</i> <i xmlns="http://www.w3.org/1999/xhtml">on the F-35 and future defense and commercial aircraft.</i>  </p><p xmlns="http://www.w3.org/1999/xhtml"><span xmlns="http://www.w3.org/1999/xhtml" class="legendSpanClass">WINDSOR LOCKS, Conn.</span>, <span xmlns="http://www.w3.org/1999/xhtml" class="legendSpanClass">Aug. 24, 2026</span> /PRNewswire/ -- Collins Aerospace, an RTX (NYSE:<a class="ticker" href="https://www.benzinga.com/quote/RTX">RTX</a>) business, successfully completed altitude testing of its next generation Power and Thermal Management System (PTMS), the Enhanced Power and Cooling System (EPACS).</p>
<p xmlns="http://www.w3.org/1999/xhtml">Designed to enhance the F-35&#39;s power and thermal management, the EPACS system delivers significantly increased cooling capacity to meet the demands of today and tomorrow. By providing the critical thermal margin required to support planned technology upgrades, EPACS ensures the F-35 remains at the cutting edge of performance throughout its entire lifecycle.</p><p xmlns="http://www.w3.org/1999/xhtml">&#34;Successful altitude testing validates system performance in real-world flight conditions,&#34; says Ira Grimmett, vice president, Environmental &amp; Airframe Control Systems for Power &amp; Controls at Collins Aerospace. &#34;Completing this phase of testing advances EPACS maturity and reinforces confidence in the system&#39;s capability and performance.&#34;   </p><p xmlns="http://www.w3.org/1999/xhtml">Altitude testing is a critical element of early development and risk reduction for a new PTMS. The system was run for several days at power levels replicating mission requirements. It was pushed to operational limits in various altitudes to collect performance data and demonstrate that EPACS can deliver the emergency power expected during operation. This test validates system performance models.    </p><p xmlns="http://www.w3.org/1999/xhtml">This latest milestone follows Collins&#39; announcement in 2025 that EPACS <a xmlns="http://www.w3.org/1999/xhtml" href="https://edge.prnewswire.com/c/link/?t=0&amp;l=en&amp;o=4757469-1&amp;h=4099092242&amp;u=https%3A%2F%2Fwww.rtx.com%2Fnews%2Fnews-center%2F2025%2F02%2F28%2Frtxs-collins-aerospace-epacs-power-and-thermal-management-system-ready-for-aircr&amp;a=met+requirements+for+aircraft+integration." target="_blank" rel="nofollow">met requirements for aircraft integration.</a>  </p><p xmlns="http://www.w3.org/1999/xhtml"><b xmlns="http://www.w3.org/1999/xhtml">About Collins Aerospace </b>    <br xmlns="http://www.w3.org/1999/xhtml"></br><span xmlns="http://www.w3.org/1999/xhtml">Collins Aerospace, an RTX business, is a leader in integrated and intelligent solutions for the global aerospace and defense industry. Our 80,000 employees are dedicated to delivering future-focused technologies to advance sustainable and connected aviation, passenger safety and comfort, mission success, space exploration, and more.    </span></p><p xmlns="http://www.w3.org/1999/xhtml"><b xmlns="http://www.w3.org/1999/xhtml">About RTX</b>    <br xmlns="http://www.w3.org/1999/xhtml"></br><span xmlns="http://www.w3.org/1999/xhtml">With more than 180,000 global employees, we push the limits of technology and science to redefine how we connect and protect our world. With industry-leading capabilities, we advance aviation, engineer integrated defense systems for operational success, and develop next-generation technology solutions and manufacturing to help global customers address their most critical challenges. The company, with 2025 sales of more than $88 billion, is headquartered in Arlington, Virginia.      </span></p><p xmlns="http://www.w3.org/1999/xhtml"><b xmlns="http://www.w3.org/1999/xhtml">For questions or to schedule an interview, please contact </b><a xmlns="http://www.w3.org/1999/xhtml" href="mailto:corporatepr@rtx.com" target="_blank" rel="nofollow"><b xmlns="http://www.w3.org/1999/xhtml">corporatepr@rtx.com</b></a>.    </p>



<p xmlns="http://www.w3.org/1999/xhtml" id="PURL"><img xmlns="http://www.w3.org/1999/xhtml" title="Cision" width="12" height="12" alt="Cision" src="https://edge.prnewswire.com/c/img/favicon.png?sn=NE31531&amp;sd=2026-08-24"></img> View original content:<a xmlns="http://www.w3.org/1999/xhtml" id="PRNURL" rel="nofollow" href="https://www.prnewswire.com/news-releases/rtxs-collins-aerospace-epacs-power-and-thermal-management-system-completes-altitude-testing-302857686.html" target="_blank">https://www.prnewswire.com/news-releases/rtxs-collins-aerospace-epacs-power-and-thermal-management-system-completes-altitude-testing-302857686.html</a></p><p xmlns="http://www.w3.org/1999/xhtml">SOURCE RTX</p>

RTX's Collins Aerospace reports altitude testing success for the Enhanced Power and Cooling System (EPACS), part of the PTMS. The milestone strengthens thermal margins for the F-35 and future airframes, supporting planned technology upgrades and potential future orders in defense and commercial markets.

News insight

RTX's Collins Aerospace EPACS power and thermal management system completes altitude testing

AI summary

Sentiment rationale

Key facts

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