Estes Big Bertha

This is my stock Big Bertha. I had one when I was younger, so it was the first kit I got after the Alpha starter kit. It is three inches shorter after the 10/01/97 flight, and a total of four inches shorter after the 10/24/98 flights.

Dia: 1.64"; Length: 20" (was 24"); Wt.: 2.2 oz.; Motor (1): 18mm
Recommended motor: B4-2, B4-4, B6-2, B6-4, C6-5
Status: Wrecked by Jackson.

Flt Date Motor Comments
1) 4/11/97 B6-4 Landed in a small tree.
2) 4/26/97 C6-5 Cut spillhole in chute before launch. Flies nicely.
3) 4/27/97 C6-5  
4) 5/15/97 B4-4 Perfect flight.
5) 6/15/97 B4-4 Parachute duration attempt for NARTREK, but only 34 sec.
6) 7/13/97 C6-5  
7) 8/11/97 C6-5  
8) 9/23/97 B6-4  
9) 9/23/97 C6-5  
10) 9/25/97 C6-5 Drifted across Alkali Creek Road, but recovered.
11) 10/01/97 B6-4 Nose cone ejected, but chute hung up at end of body tube. Came in nose first, pranged, had to remove three inches of body tube to repair.
12) 3/15/98 C6-5 Nice flight.
13) 4/16/98 B6-4  
14) 6/04/98 B6-4  
15) 7/25/98 C6-5  
16) 8/22/98 B6-4  
17) 10/24/98 B6-4 Parachute stuck in tube, no damage.
18) 10/24/98 B6-4 Parachute stuck in tube again, damaged front 1 inch on the body tube. Cut off.
19) 4/15/00 C6-5  
20) 4/19/00 B6-4 Launch for Lewistown 8th grade science class.
21) 5/13/00 C6-5  
22) 6/10/00 C6-5  
23) 7/15/00 C6-5  
24) 10/26/00 B6-0/C6-7 CHAD staging, worked great. I always wanted to try this.
      Rocket destroyed by my three-year old.

Pictures
Big Bertha in the hands of a toddler.
Big Bertha.

Back to main page.