SAB Raw 700 @ Cédric Walter | Thursday, Nov 23, 2023 | 8 minutes read | 1546 Words | Update at Sunday, Mar 31, 2024

SAB (Scorpion Antennas and Batteries) primarily focused on manufacturing and designing high-quality radio-controlled (RC) helicopters.

warning

R/C helicopters are not toys. R/C helicopter utilize various high-tech products and technologies to provide superior performance.Improper use of this product can result in serious injury or even death. Please read this manual carefully before using and make sure to be conscious of your own personal safety and the safety of others and your environment when operating all RC Helicopter products. I assume no liability for the operation or the use of this product. Intended for use only by adults with experience flying remote control helicopters at a legal flying field.

tip

Safety is paramount. Always follow safety guidelines, such as not flying near people, animals, or obstacles. Maintain a safe distance from other RC enthusiasts. Wear safety glasses to protect your eyes from debris.

Here ’s a brief overview of some SAB RC helicopter models:

  1. **Goblin Series
    • The Goblin series is one of SAB ’s flagship lines of helicopters.
    • Goblins are known for their high performance, precision engineering, and innovative design.
    • Different Goblin models cater to various skill levels and preferences, from beginners to advanced pilots.
  2. **RAW
    • RAW is another series of helicopters from SAB.
    • These helicopters are designed for extreme 3D flying, agility, and aerobatics.
    • RAW helicopters typically feature a robust construction to withstand aggressive maneuvers and provide a thrilling flying experience.

I decided to buy the SAB Raw 700, as it “should be” cheaper to fix, yeah should be 🫣

The 700 class is not cheap, a 580 class is cheaper but not so much.

Raw 700 features

  • AIRFRAME weight: 2620gr (with blades, no battery, no electronics)
  • Main blade length: 650mm to 720mm
  • Tail blade length: 105 to 115 mm
  • Main rotor diameter: 1548 mm (with 690 mm blades included)
  • Tail rotor diameter: 284 mm (with 105 mm tail blades included)
  • Cyclic Servos: standard size 40mm
  • Tail Servo: standard size 40mm.
  • Main Rotor ratio: 11.8 to 8.4 (21T included: 10.1:1)
  • Tail Rotor ratio: 5.0-4.8:1 (26T included: 4.9:1)
  • Typical motor: 4525 series
  • Typical speed controller: 12S, 160-200 A
  • Battery size: 12S 4500-5500 mAh.

Total Cost of Ownership (TCO)

WhatRecommendedMay be reused?Price
Helicopter KITSAB Raw 700https://goblin-helicopter.com/products/goblin-raw-700-yellowPart of it 😅978.-
ReceiverBeta FPV SuperP 14CH Diversity Receiver 2.4GHz ELRS PWM Receiver DocumentationBeta FPV page38.-
ReglerCOOL KOSMIK 250 HV-I https://kontronik.com/en/produkt/cool-kosmik-250-hv-i AlternativesRegler YGE 205 HVT V2not common that they burn but…750.-or570.-
MotorXnova Lightning 4525-530KV Type AorEgodrift Tengu 4525HT-550kVsomething else should break before…399.-
ServoKST X20 V2 Combo Brushless TitanAlternativesBK-Servo DS-7002HV Ultra Speed. 109.- x 3BK-Servo BLS-8005 HV+ Ultra Speed 158.-Servo arm break first594.-
Flight ControllerBavarian Demon FBL Axon orVbar Neo VLinkorRotzorflightis well protected inside canopy359.-or
BatterySLS Quantum 4500mAh 12S1P 44,4V 65C/130C SPLITshould not go in fire262.-
Drone FinderFly 2.0yes15.-
BufferAllow Helicopter to be driven if BEC failed, a few minutes more to land.Safety cap safe landing UPS (Super capacitance)orOptipower Ultra Guard (2S LiPo)100
Safety SwitchAvoid main blade to spin SPS SafetyPowerSwitch 70V 140/280A. 130.-130
BagSAB Goblin 630/700/770 Carry Bag😅100.-
Total4080.-

info

YGE have good ESC BUT

  • their software to manage settings is Windows only and outdated
  • no iOS or android app
  • no WIFI, Bluetooth wireless connection
  • Their firmware is signed to stop piracy: you must send an email with your serial to get a signed firmware! For all these reasons I DO NOT recommend YGE ESC.

Hobbywing are <50% cheaper and have iOS/Android App

Crash costs

Each crash is unique, but most of the time you have to replace the same part over and overHere are 4 scenario using

https://www.modellhubschrauber.ch/Ersatzteile/Elektro-Heli/Goblin-280-770/Goblin-RAW-700.htm?shop=helibaumann&SessionId=&a=catalog&t=221&c=1061&p=1061 as a reference for price in Switzerland.

Light 🫤Middle 😧Important 😭Worst 💀
landing squid 16.- + 25.-Main rotor blade 93.- to 129.-Main rotor blade 93.- to 129.-Fire => 3800.-
Main shaft 19.- up to titanium 39.-Main shaft 19.-up to titanium 39.-Lost => 3800.-
landing squid 16.- + 25.-Tail Boom 27.-All other case up to 1000.-
Tail blade 30.-
Tail Spindle 11.-
Tail Shaft 19.-
Tail pitch slider 24.-
Canopy 89.- (cosmetic)
41.-153.-312.-

Receiver

You really only need five channels to fly a helicopter.

For FBL systems 7 or 8 channel might make sense:

  • channel 5: gyro gain / rescue
  • channel 6: pitch
  • channel 7: FBL bank switching (stability, rescue, etc.)
  • real time / live PID tuning on further channels

Setting up an ESC for a helicopter

The exact steps and features can vary between different ESC models and helicopters, so always refer to the user manual provided by Hobbywing for your specific ESC. Additionally, take safety precautions, and perform these steps in a controlled environment away from people and obstacles. Here’s a general guide for setting up an ESC for a helicopter:

Read the User Manual

Always start by carefully reading the user manual provided by Hobbywing for your specific ESC model. The manual will contain specific instructions, safety guidelines, and information about the features of your ESC.

Connect the ESC to the Receiver

Connect the ESC to the receiver using the appropriate cables. Ensure that the polarity is correct. The ESC typically connects to the throttle channel on the receiver.

Set Throttle Range

Most ESCs have a throttle range calibration procedure. Follow these general steps:

  • Turn on your transmitter and set the throttle stick to the highest position.
  • Connect the ESC to the battery or power source. You might hear a series of beeps indicating power-up.
  • Wait for a set of beeps indicating that the high throttle position has been recognized.
  • Move the throttle stick to the lowest position.
  • You should hear a different set of beeps indicating that the low throttle position has been recognized.

Programming Mode

Some ESCs have a programming mode that allows you to adjust various settings. This is often accessed by a sequence of throttle stick movements or by using a programming card. Refer to the user manual for the specific programming procedure.

Set Governor Mode (if applicable)

If your ESC has a governor mode for controlling the rotor speed, follow the instructions in the manual to set it up. Governor mode helps maintain a consistent rotor speed during flight.

Adjust Timing (if applicable)

Some ESCs allow you to adjust the timing for different motor types. Check the manual to see if timing adjustment is necessary for your specific motor.

Motor Direction

Ensure that the motor is spinning in the correct direction. If needed, swap any two of the three motor wires to reverse the direction.

Safety Checks

Before flying, perform safety checks: Confirm that the throttle stick on the transmitter is set to zero. Check for proper operation of the motor by increasing and decreasing throttle with the helicopter securely anchored. Verify that the ESC and motor are not getting excessively hot during operation.

Fine-Tuning (if needed):

Depending on your specific helicopter setup and preferences, you may need to fine-tune the ESC settings. This can include adjusting brake strength, acceleration, and other parameters.

Learning to fly an RC Helicopter

Using an RC helicopter simulator is an excellent way for beginners to practice and develop the necessary skills without the risk of damaging a physical helicopter. Here are some key aspects to focus on when using an RC helicopter simulator as a beginner:

Basic Controls

  • Understand and practice the basic controls of an RC helicopter, including throttle, cyclic, and collective pitch.
  • Get comfortable with the transmitter sticks and how they affect the helicopter ’s movements.

Hovering

  • Master the skill of hovering at a fixed altitude. This involves maintaining a stable position without drifting.

Orientation

  • Learn to control the helicopter in different orientations (nose-in, tail-in, side-in).
  • Develop the ability to maintain control regardless of the helicopter ’s orientation.

Forward Flight

  • Practice flying the helicopter forward and backward, gradually increasing speed as you gain confidence.
  • Focus on maintaining a straight and level flight path.

Turns and Banking

  • Learn how to perform controlled turns and banks.
  • Practice making smooth and coordinated turns without losing altitude.

Figure 8s

  • Combine turns and forward flight to practice flying figure 8 patterns.
  • This helps improve coordination and spatial awareness.

Landing and Takeoff

  • Practice smooth takeoffs and landings.
  • Work on descending the helicopter steadily and landing it gently.

Simulated Challenges

  • Explore the simulator ’s built-in challenges or missions to test your skills in various scenarios.
  • Challenges may include flying through obstacles, navigating a course, or performing specific maneuvers.

Emergency Procedures

  • Simulate emergency scenarios such as engine failure or loss of control.
  • Learn how to react quickly and recover the helicopter in challenging situations.

Customize Settings

  • Familiarize yourself with the simulator ’s settings, including adjusting sensitivity and expo settings on the transmitter.
  • Customize the simulator to match the characteristics of the specific RC helicopter you plan to fly.

Consistent Practice

  • Regular and consistent practice is key to improving your skills.
  • Gradually increase the difficulty level as you become more comfortable with the basics.

Basic flight techniques

tail-in hovering, side-in hovering, and nose-in hovering.

Intermediate flying skills

forward flight, slow pirouettes, triangle, figure eight.

Advanced flight techniques

the circuit, the square, auto-rotations, loops, rolls and flips, stall turns, backwards flight, inverted hovering and flight, aerobatics and 3D flight.

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Me

Cédric Walter is a French-Swiss entrepreneur, investor, and software engineer based in Zurich, Switzerland. He spent his career developing software applications for Swiss insurance companies to handle billions of dollars in premiums. He cofounded Innoveo AG and as the software architect developed the no-code platform designed to reduce the manual coding that powers many software apps. As an active participant in the European hacking community, he works on many open source projects including blockchain. Cédric is a winner of multiple hackathons. His expertise include designing back end, event-based, and blockchain systems. Cédric is also the founded Disruptr GmbH, a software development company that offers full spectrum of services for businesses of all sizes.

JAVA full-stack developer since 2000, in Blockchain since 2017, Certified Scrum Master 2012, Corda Certified Developer in 2019, Ethereum smart contract expert in the SWISS Blockchain Security working group

Hackathons

  • HackZurich 2022 – Level Up in top 25 finalist among 134 submissions
  • SBHACK21 – SwiFi winner of best Solution on Algorand, overall Winner 3rd Prize, CV Labs Fast Track Ticket
  • HackZurich 2020 Europe’s Biggest Hackathon winner in category Migros
  • SBHACK19 – LendIt winner of Swiss biggest Blockchain Hackathon. On chain insurance and ledger for agricultural land soil.
  • Member of the Bitcoin Association Switzerland and Cryptovalley association Switzerland,

PGP: DF52 ADDA C81A 08A6

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