Pike Paradigm is basically designed as a GPS sports model that needs to climb to 400m and have enough battery to do a second climb if the first search is not optimum. But the model is also excellent for mountain soaring or fun flying at a flat field all day. The model can easily use a much bigger battery for long or many motor runs. 

This document surveys some motors that is excellent for both GPS sport class or fun flying. A good setup can perform very different by changing one of the parameters. So be sure to ask us if you are unsure on using different parts. We can help you. There is for sure also other equipment one can use than what we state here. We can not test every equipment out there. But we have chosen to show you both premium gear and medium range priced gear yet still very good for the purpose. The best motors, controllers, batteries and propeller/spinners we will at all times try to have in stock at Samba model (and dealers) for those wanting them ready installed. We also stock good servos and other things to complete a model from the major brands. This way you get good prices and can get everything from us or our dealers installed or with the model in one package.

The Pike Paradigm nose is relatively short and is aerodynamically designed to fit both strong geared motors and can also fit some outrunners. We have opted for showing the geared Leomotion alternative and couple of outrunners from Dualsky. The aim is one hand launches without the need for a strong launch arm. Climb needs to be above 10m/s with full ballast (around 7kg) and even launch in turbulent conditions. 

Orderinfo sheet without prices HERE. Email us for updated pricelist in your area or keep reading under the video for motor alternatives we have tested 

 

Leomotion:

The Leomotion L4023-2400 with PG32 6,7:1 gear is very powerful and energy effective motor that is fitting well but also short so as much space in the fuse as possible is available for the GPS gear. In these tests we have used the cooling finned motor (Kühlrippen) for maximum cooling. Having a neat and tidy installation with cables secure every time you change battery is important. The tests show that this motor is very efficient on 6S battery and one does not need a powerful throw to get a safe launch even in turbulent or windy conditions. If you can lift 5-7kg model you can probably throw the model with motor on :-) Many consecutive motor runs with no time for cooling is not recommended with this motor unless you draw less than 50-60A (limit from Leomotion is 1500w for 15seconds). The motor is also possible on 5S alternatives for long or many motor runs but with less climb rate or much bigger propeller. 

For motor controller the Talon90 from castle Creation was used. Batteries was various medium to high C (discharge rate) from 50C-100c. it is always good to use a minimum of double C of what is expected amperage use. The numbers are often amount of C in just 10-15seconds and not below 50% use. Big differences is found on different battery brands so beware of heat build up or low voltage during climb. Here is a few examples of how to calculate. They are just for showing calculation as a C value is not always the same standard for all brands. Usual battery for GPS sports class is around 1800-2300mah on 5S or 6S. The fuse can fit up to approximately 45x45mm (width x height) battery:

• 6s2500mah (2,5Ah) battery marked 50C: 50x2,5 =
  125A maximum amperage /2 = 62A usable
• 6s2500mah (2,5Ah battery marked 75C: 75x2,5 =
  187A maximum /2 = 93A usable
• A 6s5000mah (5Ah) battery marked 50C: 50x5 =
  250A maximum /2 = 125A usable

During tests we have found the GM brand propellers and GM scale spinner to have excellent quality so a number of different propellers were acquired. Edit: We have now also tested Vladimir Models 18x11T (twist) and spinner VM 38/6T (twist). The numbers are also very good. VM and GM props/spinners are normally in stock by us. All of the propeller/spinner combinations have a very nice fit to the fuse and by that a very low drag. As seen from the numbers below a reasonable low max pitch angle is good as the model is not accelerating very fast like small models. A good climb from throw to height is favorable instead of max climb numbers. All numbers are with flying weight 4,8kg and most combinations are tested with full ballast also. In most combinations full ballast gives 2-3m/s lower climb rate. 

It is good practice to use slow start to have good control of the launch and it also gives less direct noise from cavitation (propeller pushing the same air since not moving forward)

Numbers for climb to 400m with Leomotion L4023-2400 with PG32 6,7:1 gear and 6S battery:

Propeller	Climb average	Amps	Amp start	Comments
GM 18X13	15-16m/s	88A	95A	High amps, High temp motor
VM 18X11T	15-15,5m/s	64	70	Very efficient
GM 18X10	14-15m/s	48A	63A	Very efficient
GM18X8,5	13m/s	53A	65A
GM 16X8	8m/s	34A
Aeronaut 18X9	11m/s	45A

 

Dualsky EG2000.12 outrunner: 

Dualsky EG2000.12 motor is a capsuled outrunner especially produced and tested for GPS Sport models on 6S (or aternatively 5S) with fairly large propelles. The motor are outrunner without gear and can be more effective if a sufficient diameter can be used. The tests show the chosen diameter is good for this use and almost on same level as the inrunner Leomotion motor with gear. It is produced with open can and cooling fins in front to be able to run for the long climb to 450m several times. A very nice feature is also that the noise from the gear is removed so a very quiet climb can be achieved. This can be important on some flying fields. The price of these motors is also much lower than a geared motor. Length is short. Weight is slightly higher than the geared motor but only by some grams. Installation of this motor is on the bulkhead.

When motor in most motor setups reach full rpm the propellers in these high powered setups there might be cavitating to a point where audible noise is high. That means the sound differs to a high noise because the propeller is spinning in the air without moving forward. This is normal and some propellers make more noise than others. Example is the outrunner motors 4255 and EG2000.12 with 15x8 on 6S the cavitation makes a high noise. It is good practice to use slow start to have good control of the launch but the noise will be there when propeller reach full rpm. Noise dissapears as soon as plane have some forward motion (the full propeller working). The climb numbers is equal to the XM4255EGL-12 motor but cooling is better so is safer for 2nd climb. (see test sheets below). As a general rule choosing propellers on a Paradigm one should look at larger diameter and lower pitch than lighter and smaller models. The climb speed is not huge so having a large pitch will not be as efficiant as a smaller pitch angle. 

Nose bulkhead can be ordered ready drilled for specified motor and with cooling holes, Fully installed also available (see picture below).

We recommend for 6S GM15x8 on 38mm GM scale spinner or 16x8CCM on Dualsky 38mm Z-spinner. The 6S battery should be in the range 400-450g and 2500-3000mah/60C. Amps is 60-70A with startup amp around 75-80A first seconds. At 7kg full ballasted flying weight on the Paradigm we see 9-11m/s climb (13-14m/s on empty 5kg). Both prop/spinner setups provide quite good aerodynamic set on the nose cone.
Larger batteries possible in the Paradigm fuse because of free space backwards in fuse. We have tested up to 5000mah with still correct CG,

5S is also possible but climb rate goes slightly down. We reommend VM18x11T with 38mm VM twist spinner. One climb + smaller restart climbs is still possible with 5S/2500-3000mah/60C battery.

To make holes for some air cooling is important on all motor setups

Dualsky XM4255EGL outrunner: 

Dualsky XM4255EGL-12 or XM4255EGL-10 is two alternative motors that initially is to wide for the nose but the letters E"GL" stands for a longer shaft module attached (MFE extended output module). So the motors names is XM4255EA-12 V3 (the motor "-10" is for mainly 4-5 cells) and the module MFE-42 . These motors are outrunners without gear and can be more effective if a sufficient diameter can be used. The tests show the chosen diameter is good for this use and almost on same level as the inrunner Leomotion motor with gear. A very nice feature is also that the noise from the gear is removed so a very quiet climb can be achieved. This can be important on some flying fields. The price of these motors is also much lower than a geared motor. Length is slightly longer because of the long motor shaft. Weight is slightly higher than the geared motor but only by some grams. Installation of this motor is slightly different were we don't use the bulkhead but instead glue the extended module inside the fuse before motor is pushed in. You can download and CNC a mounting disc from THIS FILE made by Timo Feis. This ensures a very strong and noiseless installation. 

When motor in most motor setups reach full rpm the propellers in these high powered setups there might be cavitating to a point where audible noise is high. That means the sound differs to a high noise because the propeller is spinning in the air without moving forward. This is normal and some propellers make more noise than others. Example is the outrunner motors 4255 and EG2000.12 with 15x8 on 6S the cavitation makes a high noise. It is good practice to use slow start to have good control of the launch but the noise will be there when propeller reach full rpm. Noise dissapears as soon as plane have some forward motion (the full propeller working).

CNC file for mounting disc HERE

Numbers for climb to 400m with Dualsky XM4255EGL-12 on 6S battery:

Propeller	Climb 5kg	Climb 7kg	Amps	Amps start	Comments
GM16X8 / CCM16x8	14-15m/s	11m/s	65A	75A	Good climb and fit. Good for 2x450m (apx 1600mah used)
GM 15X10S	15-16m/s		76A	90A	Good climb and fit motor 60Celcius too hot
GM 15X8	13-14m/s	9m/s	60-63A	74A	Good Climb and fit. rpm max 11800rpm. Good for 2x450m (apx 1600mah used)
Aeronaut 15X13	16m/s		92A	99A	Too Hot motor
CN 14X10	14m/s		51A		Big cavitation at launch
Servorahmen A1	12m/s		51A

 

 

 

Numbers for climb to 400m with Dualsky XM4255EGL-12 on 5S battery:

Propeller	Climb 5kg	Climb 7kg	Amps	Amps start	Comments
VM 18X11T	14-14,5m/s		63A	78A	Good
GM 18X10	15m/s		68A	84A	OK for 1x450m
GM 18x8,5S	14m/s		70A	85A	OK for 1x450m
GM 17X10S	14m/s		73A	88A	on edge
GM 16X8	10m/s		48A	55A
GM 15X8	10m/s	6-8m/s	47A	55A	Low climb ballast
Aeronaut 15X13	13m/s		70A	93A	Hot motor

 

Numbers for climb to 400m with Dualsky XM4255EGL-10 on 5S battery:

Propeller	Climb	Amps	Amps start	Comments
GM 16X8	16m/s	72A	80A	Motor 60C
GM 15X8	12m/s	63A

 

Schambeck

This combination and numbers from Philip Kolb 2022

Powerline 1930/9 from Schambeck
Propeller: VMPro 18/11 with 38mm VMPro Twist-Spinner. (edit: Alternative propeller GM 18x10 and GM scale spinner)
ESC: YGE-95LVT
6 cells 2200 40C fullymax
Climbrate 9,5m\s @7000g AUW
54 Amp current