The Apogee Zephyr is a classic rocket for L1 certification.  The engine mount is for a 39 mm engine of H or I size.  It can also take high boost G engines.  The construction is basically like the Red Max and Goblin, just more robust.  The Red Max and Goblin have an apogee of around 450 and 700 ft., respectively.  The Zephyr is capable of rising to several thousand feet, depending on the engine.  Two things that I will likely add to this rocket are: an altimeter and a delayed chute release (not duel deployment).  

The completed Zephyr.  The Zephyr is designed for a 38mm engine and, with an adaptor, can also utilize a 29 mm engine.  Depending on the engine size the estimated apogee is from 1,500 to 2,500 ft.  The payload bay provides a relatively secure location for the altimeter.

Left to right: Engine tube with centering rings; assembly with epoxy; LOC nose cone payload bay; centering ring for payload bay tube. 

Left to right: LOC payload bay tube and centering ring; the payload bay secured with the endcap; the JollyLogic altimeter; comparison of the Zephyr to the Red Max and Goblin rockets.