Obtain The Full Aircrafts specifications database:
Aircrafts database is a database of 13367 aircraft specfications records including vintage, classic, modern military and clivilian aircraft of all types. The databse includes 105 different specification fields such as engine, wingspan, cruise speed, landing run, etc...
Not all aircraft have all 105 specifications but each aircraft in the database has some of these specifications, some aircrafts have more specifications than other.
Download a sample file Here, or purchase the entire database for $5 USD below.