Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Model | EIS -Final Prod. Year | # Eng. | Maximum Metric MTOW | Outside Diameter, main passenger deck |
| --- | --- | --- | --- | --- |
| Airbus A300 | 1974–2007 | 2.0 | 132.0 tons 171.7 tons | inches (m) |
| Airbus A310 | 1982–2007 | 2.0 | 164.0 tons | inches (m) |
| Airbus A330 | 1994- | 2.0 | 233.0 tons | inches (m) |
| Airbus A340 | 1993–2012 | 4.0 | 380.0 tons | inches (m) |
| Airbus A350 XWB | 2014 (est.) | 2.0 | 298.0 tons | inches (m) |
| Airbus A380 | 2007- | 4.0 | 560.0 tons | inches (m) |
| Boeing 747 | 1970- | 4.0 | 412.8 tons | inches (m) |
| Boeing 767 | 1982- | 2.0 | 204.1 tons | inches (m) |
| Boeing 777 | 1995- | 2.0 | 351.5 tons | inches (m) |
| Boeing 787 Dreamliner | 2011 | 2.0 | 245.0 tons | inches (m) |
| Ilyushin Il-86 | 1980–1994 | 4.0 | 208.0 tons | 239inches (6.08 m) |
| Ilyushin Il-96 | 1992- | 4.0 | 250.0 tons | 239inches (6.08 m) |
| L-1011 TriStar | 1972–1985 | 3.0 | 231.3 tons | inches (m) |
| MD DC-10 | 1971–1989 | 3.0 | 259.5 tons | inches (m) |
| MD MD-11 | 1990–2001 | 3.0 | 286.0 tons | inches (m) |
Question:
What is # Eng., when Outside Diameter, Main Passenger Deck is "inches (m)", and when Maximum Metric MTOW is "231.3 tons"?
Answer:
3.0