Report request: I am a self-proclaimed airplane nerd that writes a blog, and am fascinated by this newest endeavor by Stratolaunch. I need a report so that I can write about it accurately in my blog.
I need to find out as much as I can about the world’s biggest airplane made by Stratolaunch Systems. I want to know about its physical description, performance data, and how the aircraft might be used. The aircraft's first flight should be described.

Assessment questions and gold answers:
question_text: What is the largest airplane in the world at this time?
gold_answers: The Stratolaunch Model 351
question_text: What is the Stratolaunch Model 351's wingspan?
gold_answers: 117 meters
question_text: What is the Stratolaunch Model 351's empty weight?
gold_answers: 226 tons
question_text: What is the Stratolaunch Model 351's fully loaded take-off weight?
gold_answers: 590 tons
question_text: How much payload weight can the Stratolaunch Model 351 carry?
gold_answers: Up to 250 tons
question_text: What is the take-off range of the Stratolaunch Model 351 with a full load?
gold_answers: 3800 meters
question_text: What is the Stratolaunch Model 351 constructed from?
gold_answers: Two Boeing 747s
question_text: What is the Stratolaunch Model 351 constructed from?
gold_answers: light carbon fiber elements
question_text: What kind of engines does the Stratolaunch Model 351 have?
gold_answers: 6 25-ton thrust Pratt & Whitney PW4056 bypass turbojet engines
question_text: How many wheels does the Stratolaunch Model 351 have on its chassis?
gold_answers: 28
question_text: What are the two fuselages on the Stratolaunch Model 351 designed to hold?
gold_answers: Crew
question_text: What are the two fuselages on the Stratolaunch Model 351 designed to hold?
gold_answers: avionics equipment
question_text: What is the Stratolaunch Model 351 designed to carry?
gold_answers: Pegasus XL launch vehicles
question_text: What are the Pegasus XL launch vehicles expected to launch?
gold_answers: satellites into orbit
question_text: What will the DoD use the Stratolaunch Model 351 for?
gold_answers: Test hypersonic technologies
question_text: From what altitude is the Stratolaunch Model 351 designed to launch?
gold_answers: 10,500 meters
question_text: When was the Stratolaunch Model 351's maiden voyage?
gold_answers: April 2019
question_text: At what altitude did the Stratolaunch Model 351 complete its maiden voyage?
gold_answers: 5200 meters
question_text: At what altitude did the Stratolaunch Model 351 complete its second voyage?
gold_answers: 4300 meters
question_text: How long did the Stratolaunch Model 351 fly during its second voyage?
gold_answers: 3 hours 14 minutes