The author launches his Zulu on a small inland hill. Photo by Steve Wattenberg.
The author poses with his ZupAir Zulu to show
the relative size of the 59-inch ( 1. 5 meter)
wingspan airframe. Photo by Mori Yamato.
Aerobatics, and online videos show
some radical slope maneuvers, including
a tumble, rapid deep stall, and tailslide.
Because of some practical limitations
mentioned in the manual, I did not make
the control throw modifications needed
to try these maneuvers. My job is to
report about what comes in the box.
There was, however, one maneuver
that I found to be surprisingly easy with
the Zulu: inverted thermal turns. I was
testing (in slope lift) how small of a
diameter of a thermal turn that I could
smoothly and consistently fly. For me
it’s approximately 30 feet. Just for grins
and giggles, I half rolled and tried the
maneuver inverted. It worked great. I
really impressed myself. What a sailplane.
I find the Zulu to be a cost-effective,
quick-building, and fun-to-fly sailplane.
In good lift in moderate wind, it is a
Slope Soaring standout. It’s smooth and
predictable, and its “
always-something-left-in-the-stick” flight performance really
does inspire a pilot to fly more daring
The Zulu airframe is tougher than I
thought it would be. My experience is
that it’s tougher than it looks. I say the
designers made a good choice in the
If there is any downside, it’s that the
model is bulky when assembled. If you
have a small car and this is a problem,
remember that the wings are removable.
If the tail had been taped in place instead
of glued on, the Zulu could fit back into
its original box, and could be transported
in a bicycle saddlebag.
How excellent it is when we find a
sailplane for which the answers to the
three most common questions covered at
the beginning of the review are: ( 1) yes,
( 2) yes, and ( 3) wonderfully.
RC Groups (Zulu discussion thread)
68 Model Aviation SEP TEMBER 2016