Maker · data as of October 2, 2026

Janzen James

2 aircraft on the U.S. register. The most recent registration was June 15, 2021.

RV 41HARMON ROCKET II1

RV 4 · HARMON ROCKET II

Texas1Minnesota1

Aircraft newest first

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N540BJ	Janzen James HARMON ROCKET II	Fixed-wing, single engine	Individual owner Texas	Experimental	2021-06-15	Valid
N81BJ	Janzen James RV 4	Fixed-wing, single engine	Individual owner Minnesota	Experimental	2021-04-05	Valid