<Tr> <Td> 737 - 800A </Td> <Td> 138 </Td> <Td> 104 </Td> <Td> 34 </Td> <Td> April 25, 2009 </Td> </Tr> <Tr> <Td> 737 - 900 </Td> <Td> B739 </Td> <Td> 52 </Td> <Td> 52 </Td> <Td>--</Td> <Td> August 3, 2000 </Td> </Tr> <Tr> <Td> 737 - 900ER </Td> <Td> 505 </Td> <Td> 468 </Td> <Td> 37 </Td> <Td> September 1, 2006 </Td> </Tr> <Tr> <Th> 737 Boeing Business Jet </Th> <Td> 737 - BBJ1 (- 700) </Td> <Td> B737 </Td> <Td> 121 </Td> <Td> 120 </Td> <Td> </Td> <Td> September 4, 1998 </Td> </Tr>

What is the top speed of a boeing 737