Compare before buying
We are in the process of buying a couple of new helicopters. We are comparing the Bell 429 with the EC 135 Hermes and the MD Explorer. The specifications are self evident for the most part, but there are little on the noise levels at landing and take off. These units will be in residential areas time to time particularly as our hangar is home based. Noise level is an issue. The information on the FAA site Appendix 10 and 11 regarding aircraft noise levels is not clear and does not have these newer models in any case. If anybody has real time measurements it will be helpful…thanks