Tests with Turnigy 4250 (a post from the Magister thread)
Magister Power System Numbers for a Turnigy 4250 Brushless
http://www.hobbyking.com/hobbycity/s...idProduct=8489
Dimension: 48mm x 42mm, 68mm(with shaft)
Weight: 199g (kv1000) (not including connectors)
Diameter of shaft: 5mm
Length of front shaft: 18.7mm
Lamination thickness: .2mm
Magnet type: 45SH
Max performance
Voltage: 4S
Max current: 45~54A
Prop: 10x5~11x5.5
Thrust: 2050~2450g
For 2000-2500g 3D model airplane.
Kv (rpm/v) 1000
Weight (g) 199
Max Current (A) 54
Resistance (mh) 0
Max Voltage (V) 15
Power(W) 0
Shaft A (mm) 5
Length B (mm) 48
Diameter C (mm) 42
Can Length D (mm) 27
Total Length E (mm) 68
Prop..........Size........V.........A........W.... ..RPM.....Thrust
=============================================
Xoar..........10x5.....11.68.....36.2....424....11 220.....2lb 12oz
APC.........10x5.....11.60.....35.6....413....1119 0.....3lb
APC.......11x5.5.....11.28.....46.4....524....1026 0.. .3lb 12oz
MAS.....11x7x3.....10.85.....51.0....554.....9680. .. .4lb 2oz
APC.........12x6.....10.98.....56.7....623.....939 0.. ..4lb 6oz
http://www.hobbyking.com/hobbycity/s...idProduct=8489
Dimension: 48mm x 42mm, 68mm(with shaft)
Weight: 199g (kv1000) (not including connectors)
Diameter of shaft: 5mm
Length of front shaft: 18.7mm
Lamination thickness: .2mm
Magnet type: 45SH
Max performance
Voltage: 4S
Max current: 45~54A
Prop: 10x5~11x5.5
Thrust: 2050~2450g
For 2000-2500g 3D model airplane.
Kv (rpm/v) 1000
Weight (g) 199
Max Current (A) 54
Resistance (mh) 0
Max Voltage (V) 15
Power(W) 0
Shaft A (mm) 5
Length B (mm) 48
Diameter C (mm) 42
Can Length D (mm) 27
Total Length E (mm) 68
Prop..........Size........V.........A........W.... ..RPM.....Thrust
=============================================
Xoar..........10x5.....11.68.....36.2....424....11 220.....2lb 12oz
APC.........10x5.....11.60.....35.6....413....1119 0.....3lb
APC.......11x5.5.....11.28.....46.4....524....1026 0.. .3lb 12oz
MAS.....11x7x3.....10.85.....51.0....554.....9680. .. .4lb 2oz
APC.........12x6.....10.98.....56.7....623.....939 0.. ..4lb 6oz
first flight in 6 months LOL
| New open space :-) (2 min 51 sec) |
Determining a Model's Power Requirements (Eflite)
1. Power can be measured in watts. For example: 1 horsepower = 746 watts
2. You determine watts by multiplying ‘volts’ times ‘amps’. Example: 10 volts x 10 amps = 100 watts
Volts x Amps = Watts
3. You can determine the power requirements of a model based on the ‘Input Watts Per Pound’ guidelines found below, using the flying weight of the model (with battery):
• 50-70 watts per pound; Minimum level of power for decent performance, good for lightly loaded slow flyer and park flyer models
• 70-90 watts per pound; Trainer and slow flying scale models
• 90-110 watts per pound; Sport aerobatic and fast flying scale models
• 110-130 watts per pound; Advanced aerobatic and high-speed models
• 130-150 watts per pound; Lightly loaded 3D models and ducted fans
• 150-200+ watts per pound; Unlimited performance 3D and aerobatic models
NOTE: These guidelines were developed based upon the typical parameters of our E-flite motors. These guidelines may vary depending on other motors and factors such as efficiency and prop size.
4. Determine the Input Watts Per Pound required to achieve the desired level of performance:
Model: E-flite Brio 10 ARF
Estimated Flying Weight w/Battery: 2.1 lbs
Desired Level of Performance: 150-200+ watts per pound; Unlimited performance 3D and aerobatics
2.1 lbs x 150 watts per pound = 315 Input Watts of total power (minimum)
required to achieve the desired performance
5. Determine a suitable motor based on the model’s power...Continue Reading
2. You determine watts by multiplying ‘volts’ times ‘amps’. Example: 10 volts x 10 amps = 100 watts
Volts x Amps = Watts
3. You can determine the power requirements of a model based on the ‘Input Watts Per Pound’ guidelines found below, using the flying weight of the model (with battery):
• 50-70 watts per pound; Minimum level of power for decent performance, good for lightly loaded slow flyer and park flyer models
• 70-90 watts per pound; Trainer and slow flying scale models
• 90-110 watts per pound; Sport aerobatic and fast flying scale models
• 110-130 watts per pound; Advanced aerobatic and high-speed models
• 130-150 watts per pound; Lightly loaded 3D models and ducted fans
• 150-200+ watts per pound; Unlimited performance 3D and aerobatic models
NOTE: These guidelines were developed based upon the typical parameters of our E-flite motors. These guidelines may vary depending on other motors and factors such as efficiency and prop size.
4. Determine the Input Watts Per Pound required to achieve the desired level of performance:
Model: E-flite Brio 10 ARF
Estimated Flying Weight w/Battery: 2.1 lbs
Desired Level of Performance: 150-200+ watts per pound; Unlimited performance 3D and aerobatics
2.1 lbs x 150 watts per pound = 315 Input Watts of total power (minimum)
required to achieve the desired performance
5. Determine a suitable motor based on the model’s power...Continue Reading
50mm T-45 GOSHAWK BUILD/MODS
SKYANGEL T-45 Build/Mods (In Progress) include:
11-Blade Changesun 50mm EDF ("Factory" specs)
- Outside Diameter : 54.5mm
- Ducted Fan Length : 28.0mm
- Rotor Diameter : 50mm , 11 Blades
- Overall Weight : 66g ( Whole Unit )
- Motors : High Performance Outrunner Brushless Motor (4300Kv)
- Working Voltage: 11.1v (3S)
- Static Thrust : Around 410g At 11.1v (25A)
STOCK MOTOR FAN COMPARISON BY BENDWING(thanks!!)...
Stock EDF(5Blade)........................Change Sun 11 Blade
Bell length: 12.5mm........................................15.5 mm
Bell diameter: 25mm.......................................25.6mm
Shroud dia.: 52mm..........................................52.5 mm
Shroud length: 28mm......................................28.5mm
Overall length: 57.5mm...................................80.5mm
No. of blades: 5...............................................11
No. of stators: 4...............................................8
Total Weight: 50.3g..........................................65 .9g
***using a freshly charged NanoTech 1300mAh 3s 45C LiPo
and a Hobbywing 30A ESC:
Stock EDF 16.7A steady...............Changesun EDF 22.6A steady
30 Amp Plush ESC
Flying ELEVONS(Painted and reinforced weight is 19.6g( 11g MG Servo) each)
Pinned Ailerons(Lose the weight of two Aileron servos 9g each?)
Dryer sheet reinforced battery box/nose...to be determined by CG.
No control rods or linkages/clean airframe
...Continue Reading
11-Blade Changesun 50mm EDF ("Factory" specs)
- Outside Diameter : 54.5mm
- Ducted Fan Length : 28.0mm
- Rotor Diameter : 50mm , 11 Blades
- Overall Weight : 66g ( Whole Unit )
- Motors : High Performance Outrunner Brushless Motor (4300Kv)
- Working Voltage: 11.1v (3S)
- Static Thrust : Around 410g At 11.1v (25A)
STOCK MOTOR FAN COMPARISON BY BENDWING(thanks!!)...
Stock EDF(5Blade)........................Change Sun 11 Blade
Bell length: 12.5mm........................................15.5 mm
Bell diameter: 25mm.......................................25.6mm
Shroud dia.: 52mm..........................................52.5 mm
Shroud length: 28mm......................................28.5mm
Overall length: 57.5mm...................................80.5mm
No. of blades: 5...............................................11
No. of stators: 4...............................................8
Total Weight: 50.3g..........................................65 .9g
***using a freshly charged NanoTech 1300mAh 3s 45C LiPo
and a Hobbywing 30A ESC:
Stock EDF 16.7A steady...............Changesun EDF 22.6A steady
30 Amp Plush ESC
Flying ELEVONS(Painted and reinforced weight is 19.6g( 11g MG Servo) each)
Pinned Ailerons(Lose the weight of two Aileron servos 9g each?)
Dryer sheet reinforced battery box/nose...to be determined by CG.
No control rods or linkages/clean airframe
...Continue Reading
FPV mania
I have definitely caught the FPV bug! My first project, the Skywalker UAV, launched me full force into the new hobby and I never looked back! I've lined up a few more FPV projects i'm thinking about putting together, and/or already started. My next few projects will be as follows:
Bixler 1.1 FPV
I've already started on the Bixler FPV ship and have gathered most of the parts needed to complete it. I will be using my UHF rigged Turnigy system, a skylark OSD (Hobby King knockoff version), my predator video goggles and a turnigy micro FPV camera. Some pics of my build below.
The components used in this build include:
FPV gear
- Bixler 1.1 FPV (simple FPV ship w/ no autopilot)
- Bumblebee 550 quad UAV (with ardupilot 2.5)
Bixler 1.1 FPV
I've already started on the Bixler FPV ship and have gathered most of the parts needed to complete it. I will be using my UHF rigged Turnigy system, a skylark OSD (Hobby King knockoff version), my predator video goggles and a turnigy micro FPV camera. Some pics of my build below.
The components used in this build include:
FPV gear
- Turnigy Micro FPV Camera 700TVL
- HobbyKing Tiny OSD III
- Immersion RC 5.8Ghz 500mw transmitter
- Fatshark Predator video goggles and built in receiver
- Circular Polarized spiroNet Antennas
- HXT900 servos (x6)
- Turnigy D2826-6 2200kv Outrunner Motor
- HobbyKing 40A BlueSeries ESC
- Turnigy 3A UBEC
- OrangeRX RX3S 3-Axis Flight Stabilizer V2
- Immersion RC ezUHF receiver
- Sander style UHF antenna
- Turnigy 2200mah 3s Lipo for flight and video
Yaw problems
I'm having with my 450 helis , when i do a bench test on yaw ,
when i yaw left the blades tilt left and up when i yaw right blades tilt right and down
the blades don't tilt level , Ive set all servos to center, 0% at mid stick in idle up , blade tracking is spot on ,i don't know what to try next , could it be the transmitter settings if so where do I start ??
I'm using DX7 Spektrum
when i yaw left the blades tilt left and up when i yaw right blades tilt right and down
the blades don't tilt level , Ive set all servos to center, 0% at mid stick in idle up , blade tracking is spot on ,i don't know what to try next , could it be the transmitter settings if so where do I start ??
I'm using DX7 Spektrum
NF 501 Nitro
This bike is special to me. Its my first bike, I got it new in the box for $450 in 2007. I been to hell and back with this thing, I blew the motor before I even got to run it. Disgusted I put it away and tried to forget about it. About a year later the urge to get it going was eating away at me like a challenge that kicked my ass but I wasn't going to let that happen. I could not find the rebuild kit I needed for the Sirrio .12 so I ordered another 501 Nitro kit just for the engine, I didn't know better. Finally got a running drivable bike and the first time out was magical
....I seemed to "get it" right from the start and understood the characteristics. I been hooked ever since because they are so realistic to 1:1 bikes in how they react and handle. 6 years later the only thing stock is the frame, tank, shock, exhaust and chain which have all been replaced at least once over the years. The body and rider is original. This was my first real learner bike.
....I seemed to "get it" right from the start and understood the characteristics. I been hooked ever since because they are so realistic to 1:1 bikes in how they react and handle. 6 years later the only thing stock is the frame, tank, shock, exhaust and chain which have all been replaced at least once over the years. The body and rider is original. This was my first real learner bike.
LA Jets - May 17, 2013
Anytime there's an RC jet event in SoCal, we try not to miss it. Unfortunately, this year our visit was short but for good reason. We were attending the Excellence in Aviation Awards in Los Angeles which honored the Red Bull Stratos Team. Even though our stay at LA Jets was short, we saw many good friends and awesome RC jets.
Here's a few photos from our brief visit and one from the Red Bull Stratos event.
Best,
...Continue Reading
Here's a few photos from our brief visit and one from the Red Bull Stratos event.
Best,
...Continue Reading
Cosmic ray v2
It's a rainy day here in the northeast, so I decided to build a v2 of the ray. Flight test have shown that the kf airfoil not needed. After moving the battery forward past the CG and was still get a lot of lift into the wind, I could only fly at or below half throttle. The second thing I noticed was how the plane would bank in a turn which leads me to believe the frame was to flimsy 3mm epp with 3mm depron for the LE kf airfoil and some along the sides of the vertical portion as stiffeners. I also used some 1mm carbon rod to stiffen the vertical fin/rudder. V2 will see the servos on as in V1 with the battery located on the bottom possibly! I'll keep the Rx and esc on the bottom. Thinking about cutting a box for the battery or opening a box vertical/horizontal square this will add better protection from possible crashes. I'm using 6mm aerocell with flat spar, I'm also going to use hinges don't know if I'm going to use pin type or flat strips with some Fsafe Ca. I like the pin type myself, and tape for the rudder only. Hopefully I will loose a lot of the lift I was getting and she will fly more flat and exhibit a better roll rate as she seemed sluggish. One positive note v1.2 does fly well inverted. I'll post some pics tomorrow . She could possibly be done tomorrow if this weather keeps up. Love this hobby!!! Fly high, fly fast, crash pretty
раскрываем секреты подготовки к wilga cup 2013
предварительно, за неделю до Вильги
на этап Кубка России в р.Адыгея
украинские хлопцы под видом спортивных планеров провезли
ХХХ кг стратегического продукта типа "С.А.Л.О."
смазанные салом леера взмывали в небо раньше планеров!
и этот феномен зареги&#...Continue Reading
на этап Кубка России в р.Адыгея
украинские хлопцы под видом спортивных планеров провезли
ХХХ кг стратегического продукта типа "С.А.Л.О."
смазанные салом леера взмывали в небо раньше планеров!
и этот феномен зареги&#...Continue Reading
Fun Fly Copetition
RC Fun Fly competition at the Port Elizabeth Radio Flyers field. We are using the Shotgun2000 RC fun fly airplane.
| FunFly PERF (5 min 19 sec) |
Sticky:
How do I stock and transport many models?
STILL UNDER CONSTRUCTION
As you might have read on my modeler history dedicated (and now illustrated) blog page http://www.rcgroups.com/forums/showthread.php?t=1816598 the number of models exploded in recent years. Living in a 100 square meter apartment and driving the smallest Mercedes (A-Klasse) required ingenuity to combine space available and my rediscovered hobby.
Unwilling to permanently sacrifice the cozy and neutral aspect of my living space, during spring 2011 I opted to change the guestroom into a hobby room. The bed went to my parents and I bought a strong but folding 185x75cm worktable to fill one wall. The other long wall being already completely filled by pullout clothing and shoe racks, and one short side being a front window, the other the hall door, only left 4m60 by 2m20 to build and stock my model aircraft collection. Between the table and window I was able to securely fasten a shelf rail construction from the top to the bottom of the room, using adjustable and different length arms to support a variety of aircraft on a minimal space. The rest of that wall still had a wide wooden plank on which I could hang other models.
As usual build tables quickly fill up, especially when working on relatively long models as the Lander Hawker Hunter. And that was before I permanently established the left side of the table to a vertical drilling station, a Dremel with accessories, separate electrical and butane gas solder stations, lightened magnifying glass, mini...Continue Reading
As you might have read on my modeler history dedicated (and now illustrated) blog page http://www.rcgroups.com/forums/showthread.php?t=1816598 the number of models exploded in recent years. Living in a 100 square meter apartment and driving the smallest Mercedes (A-Klasse) required ingenuity to combine space available and my rediscovered hobby.
Unwilling to permanently sacrifice the cozy and neutral aspect of my living space, during spring 2011 I opted to change the guestroom into a hobby room. The bed went to my parents and I bought a strong but folding 185x75cm worktable to fill one wall. The other long wall being already completely filled by pullout clothing and shoe racks, and one short side being a front window, the other the hall door, only left 4m60 by 2m20 to build and stock my model aircraft collection. Between the table and window I was able to securely fasten a shelf rail construction from the top to the bottom of the room, using adjustable and different length arms to support a variety of aircraft on a minimal space. The rest of that wall still had a wide wooden plank on which I could hang other models.
As usual build tables quickly fill up, especially when working on relatively long models as the Lander Hawker Hunter. And that was before I permanently established the left side of the table to a vertical drilling station, a Dremel with accessories, separate electrical and butane gas solder stations, lightened magnifying glass, mini...Continue Reading
Bixler 2 Modifications List
Bixler 2 Modifications List
To help remind me what I plan to install in a stock Bixler 2
Airframe:
Carbon fiber support in elevator spanwise
FPV Camera & Go Pro Mounting Platform
Move Rudder and Elevator Servos to tail section
Remove mounting tubes for wings bolts
Install new wing attachment system
Build Mount for Keychain Camera (808 #16 v2) Top of Rudder
Create hatch for better access.
Mounting bracket for Vtx on tail boom
Electrical
Modify Flap servo for reversal.
Modify Pan Servo for more travel
Position/Nav LED lights
Motor
Install NTM 2836/1800
Adjustable Aluminum Motor Mount
Avionics
Install 5v/5a SBEC - Turnigy
Dual XT60 Connector (Parallel)
ESC - To be determined
FPV
SEC2000 600TVL PZ0420
Video Transmitter - 400 mw
Home Built CL/SK
NOVA Storm OSD v1.03
12v LC Filter - Ready Made RC.
Video
GoPro Hero3 - White
Maybe's
Gyro on Rudder. (May conflict with Nova storm)
-------------
Purchase my home made CL/SK
http://www.rcgroups.com/forums/showthread.php?t=1895661
To help remind me what I plan to install in a stock Bixler 2
Airframe:
Carbon fiber support in elevator spanwise
FPV Camera & Go Pro Mounting Platform
Move Rudder and Elevator Servos to tail section
Remove mounting tubes for wings bolts
Install new wing attachment system
Build Mount for Keychain Camera (808 #16 v2) Top of Rudder
Create hatch for better access.
Mounting bracket for Vtx on tail boom
Electrical
Modify Flap servo for reversal.
Modify Pan Servo for more travel
Position/Nav LED lights
Motor
Install NTM 2836/1800
Adjustable Aluminum Motor Mount
Avionics
Install 5v/5a SBEC - Turnigy
Dual XT60 Connector (Parallel)
ESC - To be determined
FPV
SEC2000 600TVL PZ0420
Video Transmitter - 400 mw
Home Built CL/SK
NOVA Storm OSD v1.03
12v LC Filter - Ready Made RC.
Video
GoPro Hero3 - White
Maybe's
Gyro on Rudder. (May conflict with Nova storm)
-------------
Purchase my home made CL/SK
http://www.rcgroups.com/forums/showthread.php?t=1895661
FY-999-2 and WL Toys v959 quad copters, comparison and hybridisation.
FY 999-2 quad copter is another mini quad that has geared drive but it has 3-blades on each propeller that makes it different. IMO those blades are neither advantage or disadvantage, it's nice that they not just cloned MQX quad or clone some clone of clone of clone of MQX but came with some new features.
Here's the unboxing video:
I like the lights on the board but canopy covers them so if you want them to shine bright you need to take off canopy
I'll post pictures and share results of cross breading with WL toys quads later
Here's the unboxing video:
| FY-999-2 quadcopter unboxing (8 min 19 sec) |
I like the lights on the board but canopy covers them so if you want them to shine bright you need to take off canopy
I'll post pictures and share results of cross breading with WL toys quads later
50mm F-86 Build/Mods
USED Skyangel 50mm F-86
Carbon fiber control rods
Du-Bro linkages
Dual Aileron servo mod w/ Flaps
Intake "Mast" for AIL servo wires
"Dryer Sheet" reinforcing of intake lip, Canopy tab and battery tray
3S 1300 mAh 45C Lipo
2mm tail incidence adjustment
Thrust tube
40 amp Hobby Wing ESC
Stock motor w/ 5-blade fan
Empty weight 306.5g AUW with 3S 1300 mAh 45C Lipo 425.5g
CG @...Continue Reading
Carbon fiber control rods
Du-Bro linkages
Dual Aileron servo mod w/ Flaps
Intake "Mast" for AIL servo wires
"Dryer Sheet" reinforcing of intake lip, Canopy tab and battery tray
3S 1300 mAh 45C Lipo
2mm tail incidence adjustment
Thrust tube
40 amp Hobby Wing ESC
Stock motor w/ 5-blade fan
Empty weight 306.5g AUW with 3S 1300 mAh 45C Lipo 425.5g
CG @...Continue Reading
Walking my yak
Took my old beat-up 3dEPP.com Yak55 for a walk down on the beach.
| My Pet Yak - Going for a walk - 3D Beach Flying on the OBX (5 min 43 sec) |
GoPro Daily Giveaway Winner!!!
Enter every day! I have for the last 2 years and today I won!
http://gopro.com/daily-giveaway
http://gopro.com/daily-giveaway
SONIC MODELL / Hype P-51 Miss America 680mm
Empty Weight 202g AUW with 1200mAh 25C= 261g
Carbon fiber rod stiffener under Horizontal Stab
CG @...Continue Reading
Carbon fiber rod stiffener under Horizontal Stab
CG @...Continue Reading
35mm F-15 Build
Skyangel 35mm F-15
Empty weight 154.3g 2 x 3s 460 mAh 25-40C AUW= 245.6g
CG @ 32mm
Carbon fiber control rods/ Du-Bro linkages/ 10 amp Plush ESC's/ Thrust tubes
Carbon fiber reinforcement for...Continue Reading
Empty weight 154.3g 2 x 3s 460 mAh 25-40C AUW= 245.6g
CG @ 32mm
Carbon fiber control rods/ Du-Bro linkages/ 10 amp Plush ESC's/ Thrust tubes
Carbon fiber reinforcement for...Continue Reading
35mm T-45 Build
Skyangel T-45 Red Arrows Hawk
85.4 g out of the box
88.3g with 10amp Plush ESC/thrust tube/carbon control rods
3s 460 mAh 25-40C AUW=134.2g
CG @ 24mm
85.4 g out of the box
88.3g with 10amp Plush ESC/thrust tube/carbon control rods
3s 460 mAh 25-40C AUW=134.2g
CG @ 24mm
