17 September 2012 E-ELT update of project and effect of change to 39m design
Author Affiliations +
Abstract
During the last year a modified baseline design for the E-ELT has been developed. The aim of this revision was both to achieve a significant cost saving and to reduce risk on major items. The primary mirror diameter was slightly reduced to 39 m and the total height of the telescope also decreased accordingly. This paper describes the work performed by ESO and a variety of contractors to review the EELT design to match the modified baseline. Detailed design and construction planning, as well as detailed cost estimates were updated for the 39-metre baseline design. In June 2011, ESO Council formally endorsed this modified design as the E-ELT revised baseline. The design drivers and balancing cost factors will be described along with the risk reduction measures taken during this phase. This will culminate in the design which has been agreed as being ready to move forward to construction once approval from ESO Council has been achieved.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alistair McPherson, Jason Spyromilio, Markus Kissler-Patig, Suzanne Ramsay, Enzo Brunetto, Philippe Dierickx, Mark Cassali, "E-ELT update of project and effect of change to 39m design", Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84441F (17 September 2012); doi: 10.1117/12.927787; https://doi.org/10.1117/12.927787
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT

On the way to build the M4 Unit for the...
Proceedings of SPIE (July 21 2014)
MMT adaptive secondary mirror prototype performance
Proceedings of SPIE (March 21 1997)
Thirty Meter Telescope project update
Proceedings of SPIE (September 17 2012)

Back to Top