Today’s Topics Specific fuel consumption and Breguet range equation Transonic aerodynamic considerations Aircraft Performance – Aircraft turning – Energy analysis – Operating envelope

LECTURE OUTLINE Overview of environmental effects of aircraft Aircraft noise – Impacts and regulatory issues – Technology trends Aircraft pollutant emissions – Impacts and regulatory issues – Technology and emissions trends Summary and references

Vice President/General Manager Engineering Military Aircraft and Missile Systems Group (retired), The Boeing Company Al Haggerty was vice president and general manager of Engineering for Boeing Military Aircraft and Missile System until March 31st, 2001. He was also the Executive Focal Point for the Lean Enterprise for the unit. Prior to this assignment, he was vice president of Engineering for

Outline Lifecycle cost Operating cost Development cost Manufacturing cost Revenue Valuation techniques

Course introduction Course learning objectives & measurable outcomes 21st Century Jet: The Building of the 777 – Interleaved video and discussion on aircraft systems engineering

Outline Network Layer and Internetworking The TCP/IP protocol suit ATM MPLS

Routing Must choose routes for various origin destination pairs (O/D pairs) or for various sessions – Datagram routing: route chosen on a packet by packet basis Using datagram routing is an easy way to split paths – Virtual circuit routing: route chosen a session by session basis

Optimal Routing View routing as a “global” optimization problem Assumptions: – The cost of using a link is a function of the flow on that link

Broadcast Routing Route a packet from a source to all nodes in the network Possible solutions: – Flooding: Each node sends packet on all outgoing links Discard packets received a second time – Spanning Tree Routing: Send packet along a tree that includes all of the nodes in the network

FLOW CONTROL QuickTime™ and a GIF decompressor are needed to see this picture. QuickTime™ and a Photo - JPEG decompressor are needed to see this picture. LIDS Flow control: end-to-end mechanism for regulating traffic between source and destination