Periodic Reporting for period 2 - SPAIN (Smart Panels for SAT Aircrafts Cabin Insulation)
Reporting period: 2018-01-01 to 2019-06-30
- Reduced cabin noise: lower than 80dBA (general aviation normally values are 90dBA and more)
- Improved accessibility and reduced maintenance cost linked to the insulation system removal: 20% of reduction of maintenance cost due to inspection.
- Improved installability and reduced use of installation means with benefits on total final cost (panels, installation means, installation labour hours) that will give a final real cost increase less than the above provided value.
By having the target to reduce the cabin noise for SAT aircrafts community by general values of 90db (or higher) to 80bd this project will have an important contribution to the impact as relevant for CS2 Program to reduce of 75% by 2035 the population exposed to aircraft noise. Thanks to the activity carried out in SPAIN Project it will be improved the integration of new and up-to-date insulation technologies and materials on small aircraft, this will have an impact on the transfer of technology from high Innovative segments like Large Passenger aircraft or Business Jet to the SAT community. In addition, this project will have an important impact on the revitalization of the European supply chain dedicated to SAT community.
Most recent application on some Business Jet aircraft incorporates new generation foams shaped in such a way to be as much as possible tight to the fuselage structure ; They provide weight savings, improved handling/installation characteristics and enhanced performance durability in service compared to traditional insulation, resulting in lower operating and life cycle costs even if an higher purchasing cost.
SAT community aircrafts state of art on cabin passive insulation is even behind the above described situation. Apart from the business jet category, the general aviation aircraft are notoriously noisy inside the cabin. Small planes, by definition, have a lot less of these sound and thermal absorbent materials compared to the commercial or business jet aircraft, and are louder for this reason alone. The majority of today's commercial aircraft level of cabin noise is generally lower than 80 dBA, however, in smaller aircrafts the levels are considerably higher, 90 dBA and above.
SPAIN Project firstly aims at closing the gap with the commercial aircrafts state of art in terms of materials and integration methodologies adopted for the cabin passive insulation system.
As a second issue but directly tied with the materials and integration choice, SPAIN aims at improving the actual average General Aviation community cabin thermal and acoustic comfort standard requirements keeping low the weight associated with the cabin insulation system. This will be obtained by looking at the thermal and acoustic issues for the cabin as a whole and by making extensive use of analysis, both thermal and acoustic, with a Validation and Verification approach to reduce tests and prototyping cost.