1. WFIRST Large-cell structure concept design Preview Work in progress 3/4/2016Robin Lafever1

2. Shown here, is a Delta-4 Fairing, from an earlier model, rescued from the CAD warehouse.. 3/4/2016Robin Lafever2

3. WFIRST, as presented, will easily fit into a Delta-4 payload fairing, conforming to all clearances and stay- out zones. Note: the Hi-gain Antenna is in a negotiable zone. NBD The WFIRST payload includes the Telescope, Spacecraft Bus, and Payload attach fitting. The payload is shown in Launch configuration. 3/4/2016Robin Lafever3 Delta-4 fairing Telescope Spacecraft Bus Payload attach fitting ( Cover removed )

4. WFIRST in operational configuration 3/4/2016Robin Lafever4 ( Cover removed ) MLI (Gold) Solar Panels Radiators Hi-gain Antenna Spacecraft deck

5. WFIRST in operational configuration 3/4/2016Robin Lafever5 ( Cover removed ) MLI (Gold) Solar Panels Radiators Spacecraft deck Hi-gain Antenna

6. 3/4/2016Robin Lafever6 Internal baffles Telescope Baffle structure Solar Panels Radiators Spacecraft deck Hi-gain Antenna

7. 3/4/2016Robin Lafever7 Internal baffles High density baffles Optical Bench structure Radiators Spacecraft deck Hi-gain Antenna

8. 3/4/2016Robin Lafever8 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud Radiators Spacecraft deck Hi-gain Antenna

9. 3/4/2016Robin Lafever9 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud Radiators Spacecraft deck Hi-gain Antenna

10. 3/4/2016Robin Lafever10 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud 5-sided Ti Box hardpoint, Typical for all optical mounts. Note cell structure. Instrument deck Hi-gain Antenna

11. 3/4/2016Robin Lafever11 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud Instrument deck Spacecraft deck Hi-gain Antenna

12. 3/4/2016Robin Lafever12 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud Instrument deck Spacecraft deck Hi-gain Antenna

13. 3/4/2016Robin Lafever13 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud Instrument deck Spacecraft deck Hi-gain Antenna

14. 3/4/2016Robin Lafever14 Internal baffles IR detector assembly High density baffles Optical Bench structure Focal Plane assembly And Shroud Radiators Spacecraft deck Hi-gain Antenna