NASA NRA NextGen advanced concepts and vehicles sample results

Surface issues far outweigh effects of larger arrival/departure separations - Create significant delays and costs for other users, especially at airports designed to Group V standards - When feasible, new airports likely to have SHT demand must be designed to accommodate SHTs - Existing airports with such demand must be partially re-designed for this purpose · The surface operation issues for large-span SHT aircraft that were identified in our study are a precursor for the surface issues for ultra-high L/D aircraft that could have much longer spans. - NASA´s research to develop future, environmentally friendly, generations of SHT/HWB should include consideration of how such aircraft would be operated at airports.