Bob Smith Industries 900x250 v2

1/3-Scale Home-Built B-17 Bomber

1/3-Scale Home-Built B-17 Bomber

Built by Jack Bally, this 33% scale B-17 Flying Fortress is actually a man-carrying EAA certified experimental home-built aircraft.

The Bally Bomber B-17 made it’s debut during 2018 AirVenture and was put up for sale in 2018. The aircraft returned to AirVenture 2021 piloted by her new owner.

The Bally Bomber B-17 is an original design by Jack Bally. The four-engine aircraft features retractable landing gear and is built with all riveted aluminum construction. The plans for the EAA experimental aircraft were enlarged from 1/9-scale RC aircraft plans. Despite being a scale replica, the aircraft is relatively large for a homebuilt aircraft with 34 ft. wingspan. Most homebuilt aircraft are single engine designs with a few twin engine models produced, making a four engine homebuilt a rarity in itself.

The Bally Bomber took 17 years and 40,000 man-hours to get into the air. Thousands of EAA members followed Bally’s building progress for years, and the AirVenture 2018 attendees had the chance to see the finished result in person. Jack Bally pass away in 2020 at the age of 79.


Crew: 1

Wingspan: 34 ft. 7 in.

Length: 24 ft.

Powerplant: 4 × Hirth F-30 Two cycle piston, 85 hp

Propellers: 3-bladed

Updated: August 9, 2021 — 2:23 PM


Add a Comment
  1. Just Wow. I watched the video 3 times and I just can’t get over it.
    I’ve been in love with the B-17 since I was about 9 years old. Started
    watching 12 O’clock High when it was a series about the same time. Built
    numerous plastic models. I live near Dayton, Ohio and the Air Force
    Museum, some times I just go up there and sit on a bench next to Memphis
    Belle, and listen to her tell her stories (a little teched in the head
    as Grandma would say). I gotta build one, Don Smith plans maybe. I’m
    going to be 60 next year, time to get started.

    1. I would suggest you spend some time on RCSB.COM to learn more about B-17’s and what plans work the best to fit your needs. This website is a great place to see what scale modeling is all about and moderated so there isn’t any of the BS present on the other sites.

  2. Man that is fantastic! So glad Mr Bally got to see it to completion and see it fly. Gorgeous!

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