P80 nozzle low cost technologies

Paper number

IAC-06-C4.2.05

Author

Mr. Didier Boury, Snecma Propulsion Solide, France

Year

2006

Abstract

The ESA/CNES P80 SRM development program is focused on two objectives :
- develop the first stage of the European VEGA small launcher
- demonstrate low cost technologies for the next generation of large European motors

In line with this goal the P80 nozzle design integrates numerous new technologies centered on cost reduction objectives. All the parts and functions of the nozzle are deeply  involved like :

- thermal insulation function : optimized materials like reinforced rubber, innovative Naxeco-Resin carbon-phenolic or simple glass-epoxy materials have been selected depending on specific parts requirements  
- mechanical function : an innovative low torque flex-seal design has allowed to down-size the TVC electro-mechanical system,  a low cost very large cast aluminum part is used for the exit cone mechanical housing  
- ballistic function : a new throat part based on a low cost reinforcement for carbon/carbon material has been manufactured

The technological phase is right now closing down after the Critical Design Review and the delivery of the first nozzle for Development Motor firing test.

This paper presents the main results of this technology phase including the overall development logic based on subscale functional tests.

Abstract document

IAC-06-C4.2.05.pdf

Manuscript document

IAC-06-C4.2.05.pdf (🔒 authorized access only).

To get the manuscript, please contact IAF Secretariat.