To better accommodate a variety of hardware and software upgrades planned for the F-35 Joint Strike Fighter, the House Armed Services Committee is asking the Joint Program Office to reconsider its timeline for designing -- and integrating -- a new power and thermal management system. The F-35 is going to need significantly more cooling power to support the totality of upgrades in the Block 4 modernization effort expected to be completed in fiscal year 2031. But the new PTMS is...