Motores A3-4T

The new Mini Alpha and Bertha rockets truly reach altitudes as advertised even with an A3 motor (I have not tried the A10 yet but presume that would be even higher). So both these rockets weigh just three grams less than the Star Hopper but yet reach almost twice as high (650 feet to 750 feet compared with 400 feet). Not sure how this happens but it is true and I'm guessing it is the fin structure design, quite spectacular and different than the Star Hopper. My only question is the web site says Bertha can reach 650 feet and the box says 750 feet, a bit of a difference - which is it? The Alpha web site says 695 feet max and so does the box so that is in sync. Great flights on this end and impressive to my small audiences - out of sight and then they come down to be retrieved. I loved the Star Hopper but now prefer the Bertha for mini launches. The A3 is plenty powerful enough but will be interested to see what the A10 does with these. The yellow Bertha is easier to find than the white and red Alpha, simply a color preference for retrieval. The Alpha nose cone seems to be a little too tight fit compared with the Bertha, so I now prefer the Bertha for perfect launches, but both are impressive mini rockets.

Have been using these 'Mini' A3-4T model rocket motors since the 1980's and they do not disappoint. Wish Estes would bring back the 'Mini' A3-6T for my older Estes Beta Mini 2 stager.