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39

Flight

For reassurance and to keep an eye on other traffic, it is a 
good idea to have an assistant on the flight line with you . Tell 
him to remind you to throttle back once the plane gets to a 
comfortable altitude . While full throttle is usually desirable for 
takeoff, most models fly more smoothly at reduced speeds .

Take it easy with your airplane for the first few flights, gradually 
getting acquainted with it as you gain confidence . Adjust the 
trims to maintain straight and level flight . After flying around 
for a while, and while still at a safe altitude with plenty of fuel, 
practice slow flight and execute practice landing approaches 
by  reducing  the  throttle  to  see  how  the  model  handles  at 
slower speeds . Make a few more runs minding your field’s 
current traffic pattern and try executing a few straight-ahead 
stalls . Add power to see how she climbs as well . Continue to 
fly around, executing various maneuvers and making mental 
notes (or having your assistant write them down) of what trim 
or C .G . changes may be required to fine tune the model so 
it flies the way you like . Mind your fuel level or batteries, but 
use this first flight to become familiar with your model before 
landing .

Landing

To initiate a landing approach, lower the throttle while on the 
downwind leg . Allow the nose of the model to pitch downward 
to gradually bleed off altitude . Continue to lose altitude, but 
maintain airspeed by keeping the nose down as you turn onto 
the  crosswind  leg .  Make  your  final  turn  toward  the  runway 
(into the wind) keeping the nose down to maintain airspeed 
and control . Level the attitude when the model reaches the 
runway  threshold,  modulating  the  throttle  as  necessary  to 
maintain  your  glide  path  and  airspeed .  If  you  are  going  to 
overshoot, smoothly advance the throttle (always ready on 
the right rudder to counteract torque) and climb out to make 
another  attempt . When  you’re  ready  to  make  your  landing 
flare  and  the  model  is  a  foot  or  so  off  the  deck,  smoothly 
increase up elevator until it gently touches down . Once the 
model is on the runway and has lost flying speed, hold up 
elevator to place the tail on the ground, regaining tail wheel 
control .

One final note about flying your model . Have a goal or flight 
plan  in  mind  for 

every  flight .  This  can  be  learning  a  new 

maneuver(s),  improving  a  maneuver(s)  you  already  know, 
or  learning  how  the  model  behaves  in  certain  conditions 
(such  as  on  high  or  low  rates) .  This  is  not  necessarily  to 
improve your skills (

though it is never a bad idea!)

, but more 

importantly  so  you  do  not  surprise  yourself  by  impulsively 
attempting a maneuver and suddenly finding that you’ve run 
out of time, altitude, or airspeed . Every maneuver should be 
deliberate, not impulsive . For example, if you’re going to do a 

loop, check your altitude, mind the wind direction (anticipating 
rudder corrections that will be required to maintain heading), 
remember to throttle back at the top, and make certain you 
are on the desired rates (high/low rates) . A flight plan greatly 
reduces the chances of crashing your model just because of 
poor planning and impulsive moves . 

Remember to think.

HAVE A BALL!

But always stay in control

and fly in a safe manner.

GOOD LUCK AND GREAT FLYING!

Summary of Contents for Z-526 ZLIN krobat

Page 1: ...ct of using the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated with the use of this product the buyer is advised to ret...

Page 2: ...airshows in the 1960 s The Zlin along with the famous de Havilland Chipmunk paved the road to the modern CAP Extra and Edge aircraft era of today Like its full scale counterpart the Great Planes Zlin...

Page 3: ...dust as the dust will blow back into your eyes Always wear safety goggles a particle mask and rubber gloves when grinding drilling and sanding fiberglass parts Vacuum the parts and the work area thoro...

Page 4: ...rvo Mounting Screws Set of 10 FUTM2550 ADDITIONAL ITEMS REQUIRED To finish this airplane you will need the following items Adhesives and Building Supplies o 3 8 x 3 Heat Shrink Tubing GPMM1060 o R C f...

Page 5: ...te is packaged in six foot rolls but some hobby shops also sell it by the foot If only a small piece of MonoKote is needed for a minor patch perhaps a fellow modeler would give you some MonoKote is ap...

Page 6: ...rs and payments by personal check to Hobby Services 3002 N Apollo Drive Suite 1 Champaign IL 61822 Be certain to specify the order number exactly as listed in the Replacement Parts List Payment by cre...

Page 7: ...o For Futaba standard servos this is the arm that is already installed on the servo For other radio systems please use the arm that is at least 5 8 15 9mm long from the center of the shaft to the oute...

Page 8: ...ach servo arm still centered position your servo on an aileron servo bay cover so that the servo arm is centered in the opening and exiting the opening Please note If you are using Futaba servos there...

Page 9: ...rs o o 13 Working with one wing now make a mark using a felt tip pen directly behind the aileron servo arm Use a builder s triangle or builder s square to ensure that you mark directly behind the serv...

Page 10: ...horn Extend the pushrod forward and line it up with the servo arm hole Mark the pushrod at the hole o 19 Bend the pushrod 90 at the mark that you made Connect the pushrod to the outermost hole in the...

Page 11: ...d wheel collars using a drop of thread locking compound on the set screws Apply a few drops of light machine oil to the axles when you re done o 3 Locate four flat nylon straps Place these in the cuto...

Page 12: ...it and rotate the dowel to sand off material Sand off a little at a time and recheck the fit o 3 Locate the one 1 3 8 35mm long hardwood dowel Test fit this in the root wing rib of each wing If necess...

Page 13: ...lon wing bolts and three 64 rubber bands not supplied Fit the wing bolts in the wing so that each bolt is centered in the hole Use two rubber bands on the wing bolts one on the top side and one on the...

Page 14: ...the trim scheme carefully slide the stabilizer into the slot in the fuselage Slide the stab past center and re coat the top and bottom of the stab center section Proceed immediately to the next step...

Page 15: ...o see that the LE of each elevator can touch the TE of the stab If you are having trouble fitting the hinges run your hobby knife through the slot backwards so that the dull side of the knife blade di...

Page 16: ...rge nylon hinge into the slot in the fin o 10 With the tailwheel facing aft test fit the rudder Check to see that the tailwheel is aligned with the rudder If the tailwheel needs adjustment remove the...

Page 17: ...o position the clevis holes directly above the hinge line Hold the horn in this position and drill two 3 8 9 5mm deep holes using a 1 16 1 6mm drill Be careful not to drill through the elevator comple...

Page 18: ...g screws that came with your servo Remove the servo and harden the screw holes with thin CA Reinstall the servo o 9 Identify the left elevator pushrod and make a gentle bend in it at the point shown s...

Page 19: ...m from the threaded end and cut off the unthreaded side Fit a silicone clevis retainer onto the pushrod and thread a clevis onto it so that at least 1 16 1 6mm of threads are visible past the clevis b...

Page 20: ...in CA o 19 Set the rudder at neutral Mark the rudder pushrod at the servo arm and bend the rod straight up 90 Attach the pushrod to the servo arm using a nylon FasLink Secure the servo arm using the a...

Page 21: ...the tank You may need to adjust the bend of the line so it reaches the top of the tank A small amount of clearance is desirable When the stopper is fully installed tighten the screw to seal the stopp...

Page 22: ...rewall using this hardware Notice that there are centering marks molded into each half of the engine mount and that there are centering marks also on the firewall Use thread locking compound on the sc...

Page 23: ...ot to the fill line Leave this line about 9 229mm long It will need to exit the cowl out of the cooling air hole in the bottom of the cowl Rig the Throttle o 1 Depending on the side you installed the...

Page 24: ...ad locking compound to the throttle arm screw and install the throttle arm Slide the pushrod into the pushrod tube and attach the throttle arm to the carburetor If your throttle arm included a lock wa...

Page 25: ...mFire 55 42 60 480 motor The motor prop ESC and battery combination listed was tested extensively and performs very well You can expect a brisk flying pace and better than average aerobatic performanc...

Page 26: ...embly as shown Position the motor and frame so that the motor measures 4 3 4 121mm from the knurled drive washer portion of the motor to the firewall Install the eight bolts in the locations shown Be...

Page 27: ...rate the hook side from the loop side Join the hook side to the loop side so that there is a 2 51mm overlap Make two straps like this o 2 Install the strap from the bottom of the fuselage If you want...

Page 28: ...ack you choose o 2 Choose a place to mount your switch and charge jack that will not interfere with the servos or radio gear We chose to use the Great Planes Switch Charge Jack Mounting Set GPMM1000 A...

Page 29: ...receiver battery to the switch harness and the harness to the receiver Use a piece of heat shrink tubing to secure the receiver battery to the switch harness If you are using a 72MHz receiver route t...

Page 30: ...the cowl will be Trim holes in the card stock to clear any parts that will interfere with the cowl o 3 Fit the canopy and hatch assembly to the fuselage Remove your muffler or anything that will inte...

Page 31: ...th your engine motor Install the prop nut and any lock nut included with your engine securely o 2 Test fit the spinner cone to the backplate Trim the blade openings in the cone at any points that inte...

Page 32: ...d former and then dropping down and sliding back the canopy The two hooks under the canopy should engage in the fuselage Magnets will keep the hatch back and locked Apply the Decals 1 Use scissors or...

Page 33: ...nes the batteries Voltages but the capacity remains the same These two 1500mAh batteries both 11 1V are being joined in PARALLEL The result will be one 11 1V 3000mAh battery This is a PARALLEL battery...

Page 34: ...throw For this particular airplane we recommend using the high rate rudder only on the ground when taxiing Switch to low rate rudder before initiating your takeoff roll NOTE The throws are measured a...

Page 35: ...e or eliminate any additional ballast required If additional weight is required nose weight may be easily added by using a spinner weight GPMQ4645 for the 1 oz 28g weight or GPMQ4646 for the 2 oz 57g...

Page 36: ...If the control surfaces do not respond correctly do not fly Find and correct the problem first Look for loose servo connections or broken wires corroded wires on old servo connectors poor solder joint...

Page 37: ...ved line s must be established in front of which all flying takes place with the other side for spectators Only personnel involved with flying the aircraft are allowed at or in the front of the flight...

Page 38: ...idly vibrates up and down thus causing the noise In extreme cases if not detected immediately flutter can actually cause the control surface to detach or the flying surface to fail thus causing loss o...

Page 39: ...the runway into the wind keeping the nose down to maintain airspeed and control Level the attitude when the model reaches the runway threshold modulating the throttle as necessary to maintain your gl...

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