Harmon Rocket II
1 model · 91 on the US register today
The Harmon Rocket II is John Harmon's six-cylinder conversion of the Van's RV-4: a shortened RV-4 wing and a strengthened, lengthened fuselage around a 250 hp Lycoming IO-540, 1,200 lb empty and 2,000 lb gross, quoted at 230 mph cruise, a 55 mph stall and 3,100 fpm.
The variants
| MODEL | YEARS | ACTIVE | TAILFAX SCORE | WHAT CHANGED |
|---|---|---|---|---|
| Harmon Rocket II | — | 91 | Partial 13.2/30 | The original HR II |
Family fleet, active
91
FAA registry
NTSB events / 1,000, 10 yrs
54.9
5 events over 91 active aircraft, pooled across the family
Successor
Data as of: FAA registry Sep 28 · NTSB Oct 2 · scores Sep 30