Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1123802_1 (_takeoff VARCHAR, power VARCHAR, engine VARCHAR)

### Question ###
When the engine is Wasp Jr. T1B2, what is the number needed for takeoff power?

### Accurate SQL ###

SELECT COUNT(power), _takeoff FROM table_1123802_1 WHERE engine = "Wasp Jr. T1B2"