Estes Model Rocket Altimeter 2246 HO Bulidings This is the HPI Nitro

This is the HPI Nitro Star F4

and nickel silver rail ensures reliable electrical contact through the points

Patent pending

This part holds the engine to the chassis

Weight ounces: 0

Estes Model Rocket Altimeter 2246 HO Bulidings This is the HPI NitroEstes EST2246 Altimeter This is the Altimeter from Estes. Suitable for Ages 10 & Older with Adult Supervision for Those Under 12. FEATURES: One piece fully assembled unit Sophisticated and lightweight electronic payload for accurately measuring your model rocket altitudes 4 digit LCD read out and displays in English or metric units Accurately measures model rocket launch altituted from 0 9999 feet (0 3000 m) Store up to 10 consecutive flight