I saw this site mentioned that there is now shuttle from NRT both terminals to the museum, it mentioned it has 4 daily departures to and from NRT, is that true ? I can't find any information in the museum's website. If yes, does anyone know the schedules ?

http://www.japan-guide.com/e/e6404.html

Museum of Aeronautical Sciences:
Airport Museum Shuttle buses depart from Narita Airport Terminal 1 (first floor, bus stop 30) and Terminal 2 (third floor, bus stop 2) for the museum. The trip takes 15-20 minutes, costs 200 yen and there are only four departures per day. Alternatively, a taxi ride from the airport costs about 1600 yen.

http://www.aeromuseum.or.jp/
http://www.aeromuseum.or.jp/pdf/infoE.pdf

Thanks.