Going back through old plans and kit balsa, he has put together an overlay that shows the subtle differences between the Big Bertha, Baby Bertha and Ranger designs.
Regarding fin thickness, it seems the single engine Big Bertha had 1/8" thick fins, the three engine cluster Ranger fins were 3/32" thick.
Go figure!
The Baby Bertha fins are 3/32" thick.
There have been changes to other designs over the years.
TRIVIA: There was some questions about differences in the Alpha nose cones. It seems the profile would change when the grinder stones would wear down.
No comments:
Post a Comment