Masters Cuban 8 w/ 2/4

[Zapata, Lisandro]

Eric,
 
If geometry is still working for me:
First is a 5/8 loop (225 deg.) the 45 deg. line (rolls), then a 3/4 loop
(270 deg.), then another line (rolls) and finally a 1/8 loop (45 deg.)
Am I right??
 
Arturo

-----Original Message-----
From: Henderson,Eric [mailto:Eric.Henderson at gartner.com]
Sent: Wednesday, June 18, 2003 2:08 PM
To: discussion at nsrca.org
Subject: RE: Masters Cuban 8 w/ 2/4


Jim,
        I went through this when I was learning to judge. You did a very
smart thing when you drew out the maneuver. I did this during several of our
"Schedule design" session over the years.
 
The Cuban eight is not the same as, say a vertical eight. It is two equal
length intersecting 45 degree lines, with 5/8 loops on each end. I have seen
many describe it as two loops touching but it is geometrically impossible.
The vertical eight had two loops touching. (The P-03 schedule has a 1/2 roll
where the two loops touch, just to making interesting - read, bloody
hard...)
 
The 2000 masters routine nearly had a vertical Cuban-8 in it until I figured
out how high it was going to be and how fast the down-line 45 was going to
be. Half on the drawing board and half in a flight test. On calm day it
worked. On a windy day it was a tube-bender.
 
You need to space out the two 5/8 loops so that you can get 45 degree line
intersection. Have fun and good luck.
 
Eric.
 
 
 
-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
Behalf Of Woodward James R Civ 412 TW/DRP/ACQ
Sent: Wednesday, June 18, 2003 1:30 PM
To: discussion at nsrca.org
Subject: Masters Cuban 8 w/ 2/4



Hi All,

 

I've been practicing this maneuver and I'm having trouble getting making it
repeatable/consistent/, etc.  So, I took a music CD and drew two circles
that have the same baseline and touch each other at their closest points.
If you do this, you will quickly see that two adjacent circles have no place
for 45 degree lines to be drawn in between them.  It appears to me from the
drawing that actually you cannot maintain a constant radius AND perform a 45
degree "LINE" within this maneuver.  If you maintained a constant radius you
would never reach a point where you could depart that curve onto a 45 degree
up or downline, and intersect the magic spot on the other loop at the same
radius.

 

Am I out to lunch on this, or do you indeed need different radii:  1.)
blending 45 degree line into loop 2.) looping segment.  Or, the loops are
not really supposed to touch each other in the middle, thus there is some
distance between each loop?

 

Thanks,

Jim W.

 

 

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