ZupAir ZULU User manual

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ZupAir
ZULU
OWNER’S MANUAL

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Introduction
Thank you for purchasing the 2015 ZupAir Zulu. The Zulu can be used for slope
soaring, flat-land thermalling, aerobatics and more. A built-in motor mount can
be used for quick conversion to powered flight if you don’t have easy access to
rising air. If you don’t have your Zulu flying already, final assembly is a breeze,
thanks to the molded airframe and pre-assembled components.
What will you do, with your Zulu?
Materials
The Zulu is made of Expanded Polyolefin (EPO), which is a combination of
EPP(Expanded Polypropylene) and EPS(Expanded Polystyrene), giving it good
rigidity while still being flexible enough to resistant permanent dents. The Carbon
spars have already been installed and glued in place.
Controls
The Zulu uses two servos to deflect four control surfaces. The aft surfaces are
elevons (elevator and ailerons), and the forward surfaces are drooperons
(leading-edge droop and aileron). The drooperons allow the Zulu to reach a
higher lift coefficient before stalling, both right-side-up and inverted. This allows
for tighter turns, loops, a lower sink-rate, and slower stall speed. The drooperons
also increase roll-rate, prevent tip-stalls and open up a wider range of aerobatic
maneuvers. The Zulu can perform a stable deep-stall maneuver for landings,
and an impressive continuous tumble.
Specifications
Wingspan: 60 in (1.5 meters)
Wing area: 556 sq.in (36.0 sq.dm)
Aspect ratio: 6.35
Typical flying weight (glider): 17.5 oz (495 gm)
Wing loading: 4.4 oz/sq.ft (13.4 gm/sq.dm)
Airfoils: Zup1060 & Zup1065

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Recommended radio gear
Transmitter with flying wing / delta wing mixing capability
Two-channel receiver and two servos
Battery Options:
- NiMH, 900 mAh square-pack
- Lipo, 500-800 mAh, 7,4V Lipo + BEC
- 2-Cell 800 mAh , 6.6V LiFePo4
Servos:
- Metal geared servos highly recommended (2kg/cm or more torque)
- Emax ES3252, HS-65mg – or similar
Two servo extension wires
Kit contents
1. Wing halves with carbon spars embedded
2. Fuselage with nosecone
3. Fin
4. Carbon joiner
5. 4 pushrods with clevises

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Recommended building materials
Glue
- Beacon's Foam Tac
- UHU por
- hot glue (with glue gun)
- Gorilla Glue (Polyurethane glue)
- 5-minue epoxy
- other EPO-safe glues
Screwdrivers
- small phillips screwdriver for attaching
the servo arm
- medium-size phillips screwdriver for
securing the wing joiner
Accessories needed for powered version
- 1 battery(2-3s 1000 mah Lipo battery)
- 22-08 brushless motor(KV 1200)
- 1 folding prpeller(8*4 or 8*5) and spinner

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Assembly Instructions
1. Sand the jion area to to remove mold release agent, then bond the fin to
the fuselage with foam glue.
2. Bond the servos into the servo pocket with
foam glue and secure the wire in the slot.
3. Adjust length of the linkages to bring the
aileron and drooperon to their neutral
positions (0
o
or level flight).
Typical pitch inputs should only be +/- 15
degrees, and roll deflections of +/- 30
degrees. The drooperon should deflect to
approximately the same angle (but opposite
direction) as the elevon for deflections below
20 degrees.
The Zulu needs around 20 degrees (just past
stall) of upward deflection to enter the deep-
stall mode (very nice for top-landings).
Higher descent rates can be reached with
more deflection. Extreme aerobatic maneuvers, such as the tail-slide, rapid
deep-stall, and tumble require 90 degrees of positive deflection on the elevon.

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4. Join the wings with the 6mm carbon jioner tube and lock the wing in place
with a screwdriver.
5. Electric version only
Connect the BEC to the the motor, check the rotation direction of the power,
then install the folding propeller.
Connect the receiver and check all the system.
Neutral
Position
Neutral
Position

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Should we show a light-weight setup?
6. Final assembly and radio setup
Install the battery and connect the receiver, check the radio and check the
Center of Gravity (CG). The CG should be approximately 100 mm from the
leading edge, which is also the forward-most point of the center-rib.
Advanced flyers may want the CG another 5mm aft of this point.
With the controls set to neutral, CG at 100mm or less, and rates set low, give
the Zulu a toss on a lawn. After trimming with your radio, set the drooperons
back to the neutral position, while keeping the flight-trimmed elevon
deflections.
CG

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enjoy!!
Warning
A radio-controlled model is not a toy. It is capable of causing serious bodily injury
and property damage. It is the buyer’s responsibility to build this kit correctly and
to properly install the motor, radio, and all other equipment. The first test flights
should be made only with the assistance of an experienced R/C flyer. The model
must always be operated and flown in accordance with the safety standards of
the Academy of Model Aeronautics.