Multiplex Magister

See also:

Review 11-Apr-2005 Patrick Plawner Video Available
Motor Jeti 30/3 Brushless Servos 1 x HS-81 + 4 x GWS PARK HPX
Speed Controller Hacker Master 30P Batteries 8 cells from CP1700 to 8 cell NiMH 3000-HV
Channels 5 + motor Flight Time 6 minutes
Propeller APC E - 12x8 Gear Box None

 

Wingspan 64.2"
163 cm
Length 46.06"
117 cm
Empty weight 47.62 oz
1350
 gr
Max flying weight 83.95 oz
2380
 gr
Wing Area 698 sq.inch
45 dm
Wing load  oz/sq.ft
53 gr/dm
CG location
from wing edge
3.35 "
8.5 cm

.

Building

This is PURE pleasure. I belong to the group of people who don't like to build planes, but this is a game, a LEGO game. All the parts are so smartly designed, they fit one with each other in a perfect manner.

At this level, this plane is also a perfect trainer, for someone to learn the basics of building a plane, like reading carefully the manual, following steps patiently, etc... The Elapor can take any glue like Epoxy or Cyano, as well as any painting, if you don't like the proposed decalc.

It takes not a lot of time to build it, but it is so nice, that you really want to take the time, to make it look  perfect, as it is possible. the manual is written in several languages with 2 a VERY precise and well made list of pictures to illustrate. You could just build the plane by looking at all the pictures, since they are so clear.

You will notice that the Magister is high on his feet... on his wheels. This is also very convenient, as to use a large prop. Also, since it is a big plane, it is easy to fit any battery inside the plane. Replacing the batteries between each flight is also easy, and well designed. No need, like on some other planes, to remove the wing or spend 5 minutes using your little fingers, in order to switch batteries.

At the end, the plane weights 1740gr (61.37 Oz), just without the battery. Adding the 8x3000 NiMh makes it 2235gr (78.84 Oz)

Video of the towing system

Building TIPS

  • Nose wheel, check the direction: make sure the shock load bends and do not unfolds !!
  • Remove the center part, with pictures, to work more easily with the manual instructions
  • Check, when installing the firewall, that you follow exactly the directions given from the manual. You should end up with the firewall, parallel to the fuselage. If it goes down, one of the pieces is inverted
  • Extend the nose wheel as far down as possible
  • Add carbon fiber tube, at the tail, in order to protect the tail, and tail horn, during take-off and landings, as that the carbon fiber will touch the ground, before the tail could
  • Using 2 aileron servos is a nice upgrade. Easier to set up later, and enables flaps if you like to use them
  • Adding carbon fiber tape, below the wings would reinforce it well
  • Reinforce the part which tie the cockpit to the fuselage. Epoxying or adding Cyano inside the place where the screws enter, might be a possible solution
  • When entering the screws to hold the tail elevator part, make sure to not force it too much or the screws would simply "eat" the foam and drill into it. If this happens, then just glue the tail and forget about the screws
  • Replace the recommended servos with lighter, smaller ones. HS-81 or GWS PARK HPX will do fine

Special note from Spash99: "The only thing I disagree is your mentioning epoxy as a suitable glue, in my experience with the ES epoxy peels of the Elapor.
I had good results with CA and PU glue, and heard from others that hotglue works as well
"

Note that some of the tips above were given by Ezoners, from the main Magister Thread. Splash99, Bill Glover, TreeTop and others...

One last thing, not related, the piece which attach the aileron horn to the wire, is gone so the right aileron stopped working, I suppose due to the vibrations, during all these previous flights. For some reasons, I only noticed it after landing...   So just add some Cyano to lock the screw, once installed.

Take-off Piece of cake. This plane behaves perfectly well here. Clear path, smooth take-off
  • Pull slightly the elevator, and maintain until in the air
  • Full speed (beware of torque effect depending on the motor)
  • Correct path with rudder, as necessary
  • After take-off, maintain full speed, until you get to safe altitude, level flight, then you can initiate a turn and reduce power as needed.
Flight behavior A PERFECT trainer, with no surprises. I tried stalls, and the plane just gently drop his nose and you are back on track. The plane is not build for stunts, and I did not try any for now though, but anything a normal Cesna would do, this Magister did it well.
As any trainer of this size and weight, the plane does not like to steep bank on low speed, but like any normal plane. It glides really well, and again, just on a clean path, like if it was on rails.

Flight tests
  • Loops are piece of cake, from level flight. Just make sure you have enough speed and don't wait at all, while on the edge as the plane is heavy and will drop
  • Flaps help A LOT, for landing on short runways, I tried with and without and without is much more difficult as the plane either glides quite well. Since the stall speed seems pretty high, the plane, when touching the ground is still fast and it's weight takes it for some time on the runway. Make sure to have at least a 25 meter (82 feet) runway to be safe
  • When the flaps get extended, there is no need to modify the elevator at all
  • The plane needs rudder management, in order to achieve clean and coordinated turns. This is certainly due to its size and weight, but it is required. Not doing it makes the plane slide, like any real plane would.
  • The rudder is not just here to be nice, on this plane, it works effectively. forward Slip on landings are therefore easy to do, and it might be a good way to slow the plane down, if too fast on final approach
  • Beware of the elevator. It is very sensitive. Never forget than if you pull to fast on the elevator, you might stall, regardless of the plane's speed ! I actually tried to force a stall at high speed and sudden sharp elevator up but did not succeed. Possible that I was too slow anyway.
Landing Smooth, clean, a real pleasure. The landing gear is also well done and absorbs shocks very well. Flaps do help to reduce the landing distance
Crash Results Elapor, so 5 minutes Epoxy  or Cyano and you are back in the air :)
Repairing  
Other comments

What makes this ARF kit far above the competition

 

  • ALL the pieces are inside the kit. You are not asked to find special parts, bend Z wires, look for pieces to attach the wires to the horn and on the top of this, all the parts fitting perfectly, no extra work needed. There is even a screw driver for locking the cockpit screws, on the field. Never saw that in any other ARF kit before.
  • Holes for cooling pre-made
  • 2 gains for re-enforcement of the piano wires (smart and light)
  • Space for the wires to move freely, when the servo moves
  • Sold with the kit Firewall, which is very smartly done and fits perfectly the plane. It is a little heavy but it can therefore handle heavier motors
  • Possibility to have this plane made for glow or electric. The kit contains the different parts to build it either way + special explanations in the user manual for each setup
  • Towing system is smart and efficient. How many ARF electric plane come, out of the box, with a simple to build towing system ???
  • The price you pay for this kit is MUCH cheaper than many foam, EPP other ARF kits, when you compare the quality put in the Magister.
  • The battery location is right in the CG, meaning you can put whatever battery you like, without worrying about CG impacts

AND MUST OF ALL, it flies GREAT !!!!

I was thinking who could beat Multiplex, in the Foam area, in terms of ARF, easy to build quality kits and quality of flying..... 

Multiplex beats itself in this arena, and this time, from a large margin !!!! This ARF kit is the nicest I came across so far, and the flight quality of this trainer are very complete

Selected Gliders to be towed:

  1. Robbe LO 100 (Wingspan 980mm (38.5'') - Total surface area approx. 13.9 dm2 - Total surface loading min. 11.2 g/dm2 - All up weight min. 145 gr.)

  2. Ikarus Champion (Wing span 1350mm (53'') - Weight 240g (8.5oz) -Radio requited 2 channel)

Towing test report

The Magister "out of the box" towing mechanism controlled the glider without any problem

Few remarks:
- Glider's structure was too weak to handle the stress
- Magister needs some minimum speed which seems already quite a lot for this glider
- The Magister was Excellent, during all the towing test. Immediately released the glider, after accident, and it had no problem, during all the test.

Conclusions:
- Needs to find a heavier/stronger/faster glider to pull
- Needs to use a longer wire, between the 2 planes, to absorb the tensions
- It is so fun to do, we will try this again, VERY soon, until it will become a routine

2nd try of towing, this time with the Windrider Easy Glider:

It worked !!!!!

Bomb Test release using the Tow mechanism

It worked great, just watch the video

Interesting Links
FMS plane
Pictures

Test Flight Videos

Standard tests

Test # Test Name
1.1 Take-Off
1.2 Climb rate
1.3 Plane surfaces reactivity
1.4 Glide, with motor off
1.5 Slow speed
1.6 High Speed
1.7 Stall
1.8 Landing

Aerobatics Simple Tests

Test # Test Name
2.1 Rolls
2.2 Loops
2.3 Inverted Flight
2.4 Snap Roll
2.5 4 Points Roll
2.6 Hammer Head

Latest Update: Monday, 19 September 2005