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Plus control deflections from Joe Wurts (23.08.2017) and Vladimir Gavrylko
(- up, + down, ° degrees)
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CG=86 mm |
Left Outbd |
Left Indb |
Flap |
Right Indb |
Right Outbd |
Left V |
Right V |
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Speed |
-1 |
-1.5 |
-1 |
-1.5 |
-1 |
-1.5 |
-1 |
-1.5 |
-1 |
-1.5 |
0 |
0 |
0 |
0 |
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Cruise |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
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Thermal 1 |
2 |
slider 0÷6 |
2 |
slider 0÷6.5 |
2 |
slider 0÷7 |
2 |
slider 0÷6.5 |
2 |
slider 0÷6 |
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Thermal 2 |
4.5 |
5.5 |
6 |
5.5 |
4.5 |
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Cruise Full Up Elevator |
3 |
1 |
4 |
1.5 |
4 |
1.5 |
4 |
1.5 |
3 |
1.5 |
-6 |
-7 |
-6 |
-7 |
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Cruise Full Down Elevator |
-2.5 |
-1 |
-3 |
-1 |
-3 |
-1 |
-3 |
-1 |
-2.5 |
-1 |
6 |
7 |
6 |
7 |
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Cruise Full Left Aileron |
-24 |
-17 |
-9.25 |
-7 |
0 |
0 |
8.5 |
17 |
8.5 |
7 |
-3 |
-3 |
3 |
3 |
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Cruise Full Right Aileron |
8.5 |
7 |
8.5 |
7 |
0 |
0 |
-9.25 |
-7 |
-24 |
-17 |
3 |
3 |
-3 |
-3 |
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Full Flaps |
-3.25 |
5 |
13.5 |
45 |
41 |
75 |
13.5 |
45 |
-3.25 |
5 |
4.5 |
4.5 |
4.5 |
4.5 |
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Left Rudder |
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10 |
10 |
-10 |
-10 |
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Right Rudder |
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-10 |
-10 |
10 |
10 |
Wing
Scheme of wire channels
PLUS Boom
Stabilizer horn installation
Fuselage
Simplified (visual) method for setting up a airfoils from Joe Wurts (23.08.2017)
Wing reflection for various aileron inputs
...Another item of interest is the aileron differential. I have found it best to use differential on the outboard ailerons only. The inboard ailerons should have zero differential for best handling qualities (IMO).
A big question is how to find where to set the trailing edge. I use reflections to find the cruise position. I've been using this method on various planes for many years. The usual thing is to use reflections off of the upper wing surface to define when the trailing edge is tangent to the wing. This is actually quite easy to do. It turns out that the inverted V tail helps out with the reflections as it is good to use something that is at an angle to the hinge line to generate the reflections. See the attached pictures for reflections on the wing as viewed from various perspectives with some trailing edge movement. One can define the neutral point to within a mm easily via looking at the reflections on the wing and control surface...
I am still sorting out the best thermal camber. I suspect that this is kinda like my Maxa and Snipe, the optimal camber will depend on the turbulence and thermal activity. I am showing two thermal settings, one of which seems to work for active and turbulent air (THERMAL1), and the other is for soft and gentle air (THERMAL2). For my programming, THERMAL1 is on a switch, and I get to THERMAL2 via using a slider on the side of the transmitter to go from THERMAL1 to THERMAL2. That way I can adjust in real time just how much camber I want to use.
The value for the flap deflection for full flaps is not valid... The flap full deflection is about 80 degrees, and is somewhat difficult to measure via a ruler. All of the other measurements are mm vertical distances at the trailing edge. The flap and inboard aileron were measured at the tailboom location. The outboard aileron was measured at the inboard edge of the outboard aileron.
Link to original post
Attention: Type of coloring and color of characteristic elements please specify in the letter. Just copy the text to the right of your desired image and specify the item color from our palette.
PLUS F5J top paint #1:
- Top right wing tip stripe: color
- Top stabilizer: color
PLUS F5J top paint #2:
- Top wing: color
- Top stabilizer: color
PLUS F5J bottom paint #1:
- Bottom left wing tip stripe: color
- Bottom stabilizer: color
PLUS F5J bottom paint #2:
- Bottom left wing tip stripe: color
- Bottom right wing tip stripe: color
- Bottom stabilizer: color
PLUS F5J bottom paint #3:
- Bottom left wing tip stripe (V): color
- Bottom right wing tip stripe (V): color
- Bottom stabilizer: color
PLUS F5J fuselage paint #1:
- Top fuselage stripe: color
- Bottom fuselage stripe: color
PLUS F5J fuselage paint #2:
- Top fuselage stripe: color
- Bottom fuselage stripe: color
You can see some examples below:
Contents of Plus kit
Contents of part kit:
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Right wing tip;
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Left wing tip;
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Right stabilizer;
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Left stabilizer;
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Right tail boom;
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Left tail boom;
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Accessories of PLUS;
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Fuselage;
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Central panel.
Contents of accessories kit:
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Wing joiners 5 degrees- 2 pcs;
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Aileron pushrods - 2 pcs;
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Elevators control cable;
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Control wire fixing pipe - 4 pcs;
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Pull-String Servo Pulley for KST X08 - 2 pcs;
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Stabilizer control horns - 2 pcs;
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Wing servo hatches - 5 pcs;
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Servo pockets strengthening - 5 pcs;
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Aileron control horns - 2 pcs;
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Rear screw for wing М4х16 -2 pcs (one piece spare);
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Forward screw for wing М4х20 - 2pcs (one piece spare);
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Elevator torsion springs (left and right) - 2 pcs;
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Receiver - BEC wire 250 mm (uni) - 1 pc;
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Servo hatch glued frame - 5 pcs.
Contents of PLUS /5 part kit:
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First part of left wing tip;
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First part of right wing tip;
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Left stabilizer;
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Right stabilizer;
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Right tail boom;
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Left tail boom;
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Central panel;
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Accessories of PLUS;
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Fuselage;
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Second part of left wing tip;
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Second part of right wing tip.
Recommended equipment not included to the kit
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IDS system:
IDS 6110 foam;
IDS x008 foam.
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Servos:
Flap servo (1 pc.): MKS 6110 or KST X08H (for light condition);
Flaperon servos (2 pcs.): MKS 6110 or KST X08H (for light condition);
Aileron servos (2 pcs.): KST X08H;
Elevator servos (2 pcs.): KST X08.
Attention: KST X08 servos do not work correct with 8,4V under high loading of elevator spring. Please use 5V BEC and 5V MKS 6110 servos for Plus
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Battery:
3S1P LiPo 650 mAh;
3S1P LiPo 450 mAh;
3S1P LiPo 850 mAh. -
Motor Scorpion S11-2215-1127KV.
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Controller 30A.
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Propeller RFM:12х8.
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Ballast for PLUS.
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Wing Bag for PLUS.
We can install IDS system to your PLUS wing
PLUS Pro Upgrade set
After many flight tests of various configurations Plus, we finally found the right combination of tail boom length and rigidity of the control system.
VM ECS 45/7 A for Plus
Voltage Range: 2-4S LiPo
ESC Max Burst Current: 45A
BEC Output Current: 5A, 7A/30s
BEC output Voltage: 6V
Weight: 27,4g/0,96 oz
Dimensions: 80x18,5x9,5 mm
PLUS joiners 3 degrees (2 pcs)
VM Prop 12/4,5 pushing
To provide sufficient rigidity we used a multi-layer Carboline preform by ultra-high module carbon and ultra-high module carbon rowing. We use intermedia module carbon around blade shaft for increase strength.
PLUS motor Shaft 3.17 mm (for X 2216)
PLUS motor Shaft 3 mm (for Scorpion S11-2215)
PLUS Ballast set
PLUS Pro Silver Wing/stabilizer Bag (set)
PLUS WIng template
Plus Technical Data
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PLUS Pro |
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Length |
1267 mm (50") |
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Wing span |
3717 mm (146.34") |
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Wing area |
71.5 sq dm |
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Wing airfoils |
original by Joe Wurtz |
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Wing aspect ratio |
19.3 % |
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Stabilizer area |
7.7 sq dm |
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Stabilizer aspect ratio |
7.7 % |
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Control surfaces |
ailerons, flaps, elevator |
Plus details weight
| PLUS Pro | PLUS Pro Windy | |
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Pod |
Plus Pod 67 gr (2,36 oz) |
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Tail booms |
Plus Booms (2 pcs) 40 gr (1,4 oz) |
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Central panel with wires |
Plus CP 174 gr (6,12 oz) |
Plus CP Windy 187 gr (6,6 oz) |
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Wing Tips (both) with wires |
Plus Tips (left and right) 349 gr (12,3 oz) |
Plus Tips Windy (left and right) 371 gr (13,1 oz) |
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Stabilizer |
Plus Stabilizers (left and right) 50 gr (1,76 oz) |
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Details like hatches, rods, screws, crevices |
Accessories of PLUS 17.5 gr (0,6 oz) |
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Wing joiners (both) |
Plus joiners (2 pcs) 26 gr (0,92 oz) |
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NT model weight* |
724 gr (25,5 oz) |
760 gr (26,8 oz) |
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Flight weight** |
1050 gr (37,04 oz) | 1110 gr (39,15 oz) |
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Wing loading |
14.96 gr\dm² |
15.52 gr\dm² |
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Price, EUR |
PLUS 1 980,00 € |
PLUS Windy 2 079,00 € |
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PLUS /5 2 055,00 € |
PLUS /5 Windy 2 154,00 € |
|
* - weight of the components depends on the color and the presence of stripes. Dark colors lighter, yellow is the heaviest;
** - typical value shown; the actual values depend on the radio gear used.
PLUS is the F5J without any compromises.
PLUS Wing
Airfoils and wing planform were optimized according to Reynolds numbers for the best thermaling and best wind penetration of an ultralight model.
The wing consists of 3 panels: Center with one flap, then large wing tip with flapperon and aileron on both sides. All 5 servos provide airfoil changing. Flap and flapperons servos assist in air braking, flapperon and aileron servos work like ailerons.
The Multi-hedral form insures perfect turning and straight tracking with very low pilot management.
Full Rohacell core wing has integrating carbon shear webs and ultrahigh module carbon spar. Such unique wing construction provides unique durability and rigidity of the PLUS wing.
Milled pockets for servo is intended for IDS foam frame. We can install IDS system for your PLUS wing. You need to make a choice of the servos only. For flap and flapperons we recommend MKS 6110 or KST X08H (for light wind conditions only). For ailerons we recommend KST X08H.
Please additionally fix the servos to the bottom wing surface by carbon servo pocket strengthening.
Wing wire channel is completely ready in the core. We have installed all wires and connectors in the wing already.
Milled pockets in the wing tip for the elevator servo is designed for KST X08 or MKS DS75K servos.
The receiver is placed in the wing in a milled pocket due to all seven servos are also located in the wing. Fix the antennae with adhesive tape in the slotplaces in the fuselage.
PLUS Windy Wing
We are recommended to use surprisingly hard PLUS Windy for flying in windy and turbulence conditions. A significant increase of the wing strength added 50 gramm only to the model weight.
We add a layer of longitudinal ultra-high module carbon to Carboline skin preform as an addition to the existing ultra-high module spar. In addition to increasing the strength of the skin, it has increased to 40% of the wing stiffness. Additional wing stiffness is important for improving model control during turbulence.
To further increase the rigidity of the control system, we recommend to use aileron servo horn with 3.5 mm arm (the smallest in the IDS kit).
PLUS/5 Wing
PLUS/5 (five part wing) for fans of traveling with small luggage. Box size for one 3,72m span model: 980x280x160mm only.
One more comment: RTF weight is 1070g or 1120g for windy version.
PLUS Wing joiner
We use high temperature and high pressure for unique technology of light PLUS wing joiner with prepreg of high strength carbon and with Rohacell core. PLUS wing joiner is the most critical point of construction that is why we have paid too much attention to it.
PLUS tail boom is securely fixed in the wing joiner holes and on the central panel rings.
PLUS Tail booms
We make light PLUS tail boom with Carboline multilayer prepregunder high pressure and high temperature.
Tail booms are fully ready. You only need to screw the servo and install the elevator control cable. First fix the cable on the servo horn, and then fix the length of the cable (wire) to the elevator horn.
PLUS pod
PLUS pod is laminated with the unique multilayer Carboline preform making it so light and strong.
PLUS pod has snap fixed canopy. This canopy is the same as for the Supra PRO, AVA PRO, Sprite models.
The motor is located in the nose part to ensure the correct position of the gravity center without additional ballast.
The motor shaft has an additional intermediate bearing to prevent possible bending of the shaft at high motor rotation. Motor shaft with two bearings, spinner and motor fitting is 22 g only.
The shaft guard serves to fix the ballast.
Ballast PLUS weighting up to 550 g is quickly fixed and removed. It is possible to easily adjust the ballast to the required center of gravity.
You can order the motor shaft with the spinner. Also we can install the shaft and glue the motor plate. We use jigs for equipment installation, thus it is extremely accurate.
PLUS Stabilizers
PLUS stabilizer has full core construction with Carboline SC covering, integrated carbon shear webs and carbon spar caps.
You must tape stabilizer to the boom beforethe flight.
PLUS is the F5J without any compromises.
PLUS is the newest 2017 unique project of Joe Wurts + Vladimir’s Model expressly for F5J competition.
Airfoils and wing planform were optimized according to Reynolds numbers for the best thermaling and wind penetration of an ultralight model.
Joe’s Wurts airfoils allow you to use flaps in a wide range from -2 to +7 degrees for maximum climb performancein thermals and minimized decline rate in float condition or speedy upwind flight.
The absence of the propeller in the nose is the main Plus advantage. It is greatly reduces the overall drag of the model and not only improves the wind penetration, but also improves climbing in the thermals. Probably, all the pilots noticed a significant deterioration in the flight characteristics of the electric plane in comparison with the glider (without a propeller in the nose).
Unique fittings of the tail boom to both the wing and the stabilizer provide not only light weight and high strength, but also the simplicity of the airframe assembly. In addition it has only two screws for fixing the wing to the pod.
The great advantage of opposite V-tail is the right direction of the rudder moment reaction.
There fore PLUS rudder is more efficient. Beside, stabilizers are easy to fix to the tail boom and to each other by adhesive tape. Very light pool/spring elevator control system is very light and rigid enough.
PLUS F5J has very unique advantages:
+ best thermaling performance;
+ unique wind penetration performance;
+ low drag without prop spinner and blades in the nose;
+ right direction of rudder moment reaction of opposite V-tail;
+ very easy handling;
+ ultralight weight;
+ compact size for transportation.
| PLUS Pro | PLUS Pro Windy | |
|
NT model weight* |
724 gr (25,5 oz) |
760 gr (26,8 oz) |
|
Flight weight** |
1050 gr (37,04 oz) | 1110 gr (39,15 oz) |
|
Wing loading |
14.96 gr\dm² |
15.52 gr\dm² |
|
Price, EUR |
PLUS 1 980,00 € |
PLUS Windy 2 079,00 € |
|
PLUS /5 2 055,00 € |
PLUS /5 Windy 2 154,00 € |
* - weight of the components depends on the color and the presence of stripes. Dark colors lighter, yellow is the heaviest;
** - typical value shown; the actual values depend on the radio gear used.