** Brokerages raise GE Aerospace GE.N PT in record engine deliveries, strong Q3 earnings and improved full-year outlook

** Jefferies says co's margin strength reflects disciplined execution, strong demand and strategic investments that continue to drive operating leverage and long-term earnings power

** J.P.Morgan notes GE's raised LEAP engine delivery outlook and resilient margins reflect strong execution and supply chain progress

** However, cautions that material constraints remain a key challenge as demand accelerates

** Shares of the company up nearly 1% at $306 premarket

** Average of 18 brokerages rate the stock "hold"; their median PT is $345 - data compiled by LSEG

** As of last close, stock had risen 82.2% YTD

(Reporting by Apratim Sarkar in Bengaluru)

((Apratim.Sarkar@thomsonreuters.com))