🎖️ military retired
3 photos from Wikimedia Commons · credits & licences
- 1. Keystone LB-6 front right quarter 060420-F-1234P-005: USAF· Public domain
- 2. Keystone LB-6 taxis through water 060420-F-1234P-006: USAF· Public domain
- 3. LB-6 44989582: Ray Wagner Collection Photos· Public domain
what is it?
The Keystone LB-6 and LB-7 were 1920s American light bombers, built by the Keystone Aircraft company for the United States Army Air Corps, called Panther by the company, but adoption of the name was rejected by the U.S. Army.
How to recognise it: 2 engines · biplane · fixed tailwheel (taildragger) · 23 m wingspan
base stats
Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).
fun facts
- First flew 99 years ago, in 1927.
- Wingspan of 23 m: about 5 cars parked nose to tail.
- Range of 1,017 km: 6× Amsterdam to Brussels.
spec sheet
- first flight
- 1927
- introduced
- 1929
- retired
- 1934
- status
- retired
- number built
- 35
- role
- biplane light bomber
- origin
- 🇺🇸 United States
- makers
- Keystone Aircraft
- engines
- 2× Wright Cyclone R-1750-1 radial engines
- length
- 15 m
- wingspan
- 23 m
- height
- 5.5 m
- max take-off weight
- 6,100 kg
- top speed
- 183 km/h
- cruise speed
- 153 km/h
- range
- 1,017 km
- ceiling
- 3,550 m
- wings
- biplane
- landing gear
- fixed conventional landing gear
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q3195878, Wikipedia: Keystone LB-6 (CC BY-SA 4.0).Updated 2026-10-24.