1) My start hub is Munich (272 business and 270 tourism), Germany and Im currently in the year 1971.6 ATO 3 I have used 747-100 to long haul routes such as Munich to Shanghai, Seoul, Beijing, Kuala lampur, Tokyo they have a satisfaction of 115% and my occupancy is falling significantly and the routes make mostly 5000k-6000k I have used the default seat layout. Shoud I stop using 747 due to my medium city ratings and consider aircrafts such as DC-10 and Lockheed 500?
2) If the economic crisis hits in the future will the 747 routes survive? and if they perform with the above returns I cannot arrange alternate replacement in time and might go bankrupt.
3) When is the best time to replace the planes brought in 1960-1961 (primarily 707-320, 320B and DC-8-11) I have renovated them in 1970 with new seats and sat phones. (Pls recommend replacement).