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  1. #1

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    Choosing a 450 sized heli from hobbyking

    I've decided I would like to properly fly rc helicopters. I've flown a few coaxials that require no skill, as well as learning on proper simulators (realflight). For my first helicopter I think 450 sized is the size for me - although 500 is more stable, I think the added power needed and weight of it make it a bit much.

    I already own a Futaba 6EX system I can use, so I don't need to buy a radio. I also have lipo chargers and balancers. I'm a fan of hobbyking, and think I will probably get the actual helicopter and accessories from there. So, I need to decide on:

    A helicopter
    HK450 CCPM 3D Helicopter Kit (Align T-rex Compat.) Ver. 2 - $27.99
    HK-450MT CCPM 3D Fully Alloy Helicopter Kit (Align T-Rex Compat.) - $46.79
    HK-450GT CCPM 3D Full Alloy Helicopter Kit (Align T-Rex Compat.) - $46.99
    HK-450GT Pro 3D Belt-Drive Helicopter Kit (Align T-Rex Compat.) - $55.95
    HK-450TT PRO 3D Torque-Tube Helicopter Kit (Align T-Rex Compat.) - $59.99

    I have no idea which of these to get - I've heard the torque tubes are less forgiving, so I'd be tempted towards the HK-450GT Pro. However, this doesn't seem to be full alloy - so why is it more expensive? Any thoughts?

    A motor
    Turnigy Typhoon 450H 2215H Heli Motor 3550kv (450 class)
    Turnigy Typhoon 450H 2218H Heli Motor 3450kv (450 class)

    The 2215 seems to be popular, although the 2218 seems to have a little more power. Are there any disadvantages to the 2218?

    Pinions
    Part # F050 - I assume I need these?

    An ESC
    Is a HobbyKing 40A BlueSeries Brushless Speed Controller OK?
    TURNIGY Plush 40amp Speed Controller seems very popular...

    A battery
    A 3S, 2200mah lipo. Any particular one?

    A gyro
    Hobby King 401B AVCS Digital Head Lock Gyro

    A tail servo
    HobbyKing HK-922MG Digital Metal Gear Servo 1.8kg/ 12g/ 0.07sec .
    Turnigy DS480 Digital Servo 1.85kg / .068sec / 10.9g . ******

    Three other servos
    HXT900 9g / 1.6kg / .12sec Micro Servo.
    HobbyKing 939MG Metal Gear Servo 2.5kg/ 12.5g/ 0.14sec. ******

    Accessories
    A pitch gauge?
    A rotor balancer?
    ESC programming card?
    Swash plate leveller?
    Ball link pliers?
    Loctite!
    A nice 1.5mm hex driver

    Upgrades
    Does the main thing come with blades?
    Alloy/new head?
    New Canopy?New canopy?
    Any ideas or suggestions?

    Spare Parts
    Spare tail blades?
    Spare main blades?
    What else gets broken?

    Any suggestions for parts or ideas are much appriciated. I've read most of the 'HK-450GT CCPM Alloy T-Rex compatible' thread on this forum, but the range of equipment people are using leaves me a bit confused when it come to choosing mine.

    Thanks

    Andrew

    I'm not sure if this should be in the T-Rex heli section - if it should be, could a mod move it? Thanks!

  2. #2
    rikybob's Avatar
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    RE: Choosing a 450 sized heli from hobbyking

    ORIGINAL: cowana

    I've decided I would like to properly fly rc helicopters. I've flown a few coaxials that require no skill, as well as learning on proper simulators (realflight). For my first helicopter I think 450 sized is the size for me - although 500 is more stable, I think the added power needed and weight of it make it a bit much.

    I already own a Futaba 6EX system I can use, so I don't need to buy a radio. I also have lipo chargers and balancers. I'm a fan of hobbyking, and think I will probably get the actual helicopter and accessories from there. So, I need to decide on:

    A helicopter
    HK450 CCPM 3D Helicopter Kit (Align T-rex Compat.) Ver. 2 - $27.99
    HK-450MT CCPM 3D Fully Alloy Helicopter Kit (Align T-Rex Compat.) - $46.79
    HK-450GT CCPM 3D Full Alloy Helicopter Kit (Align T-Rex Compat.) - $46.99
    HK-450GT Pro 3D Belt-Drive Helicopter Kit (Align T-Rex Compat.) - $55.95
    HK-450TT PRO 3D Torque-Tube Helicopter Kit (Align T-Rex Compat.) - $59.99

    I have no idea which of these to get - I've heard the torque tubes are less forgiving, so I'd be tempted towards the HK-450GT Pro. However, this doesn't seem to be full alloy - so why is it more expensive? Any thoughts?

    A motor
    Turnigy Typhoon 450H 2215H Heli Motor 3550kv (450 class)
    Turnigy Typhoon 450H 2218H Heli Motor 3450kv (450 class)

    The 2215 seems to be popular, although the 2218 seems to have a little more power. Are there any disadvantages to the 2218?

    Pinions
    Part # F050 - I assume I need these?

    An ESC
    Is a HobbyKing 40A BlueSeries Brushless Speed Controller OK?
    TURNIGY Plush 40amp Speed Controller seems very popular...

    A battery
    A 3S, 2200mah lipo. Any particular one?

    A gyro
    Hobby King 401B AVCS Digital Head Lock Gyro

    A tail servo
    HobbyKing HK-922MG Digital Metal Gear Servo 1.8kg/ 12g/ 0.07sec .
    Turnigy DS480 Digital Servo 1.85kg / .068sec / 10.9g . ******

    Three other servos
    HXT900 9g / 1.6kg / .12sec Micro Servo.
    HobbyKing 939MG Metal Gear Servo 2.5kg/ 12.5g/ 0.14sec. ******

    Accessories
    A pitch gauge?
    A rotor balancer?
    ESC programming card?
    Swash plate leveller?
    Ball link pliers?
    Loctite!
    A nice 1.5mm hex driver

    Upgrades
    Does the main thing come with blades?
    Alloy/new head?
    New Canopy?New canopy?
    Any ideas or suggestions?

    Spare Parts
    Spare tail blades?
    Spare main blades?
    What else gets broken?

    Any suggestions for parts or ideas are much appriciated. I've read most of the 'HK-450GT CCPM Alloy T-Rex compatible' thread on this forum, but the range of equipment people are using leaves me a bit confused when it come to choosing mine.

    Thanks

    Andrew

    I'm not sure if this should be in the T-Rex heli section - if it should be, could a mod move it? Thanks!

    Looks like yer headin' in the right direction......why don't you post your question here ya monkey??

    b
    FrSky Taranis (rev B) w/ Spektrum Module/ Spektrum DX7/ Align 500CF FBL w/ FU-BAR Gyro / Blade MCP X Brushless Mod / Gemini 600 Catamaran / Red and Blue Nirvana II one meter sail boats / Paradise sail boat /Big Swamp Buggy / HobbyKing "Swamp Dawg" / Slow Stick / HK Firefly Q450 Quad w/ HK Mega FC board / Durafly T-28 / H/H Icon - A5 / E Flite Piper L-4/ Parkzone UM T-28 / HK Fox Glider / Fat Shark Attitudes FPV Goggles / Mobius Actioncam / Teksumo /1200mm Popwing/ SFFD Fire boat!

  3. #3

    Join Date
    Aug 2010
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    RE: Choosing a 450 sized heli from hobbyking

    You have probably ordered one by now. I have the HK450GT, just finished it and did test flight Sunday 3/13311. Flies very well, smooth and quiet. I basically ordered most of the stuff recommended by HK. I did make one change. Since I saw how the servos mount and they are a real pain to get in and out if you break a gear I ordered 3 metal gear servos just in case. I use a DX6i Tx and Rx. This allows me to tame it down so I can fly it. It took me 3 evenings to get it together. I downloaded the T-Rex 450 SE V2 manual and followed it for the build. I took pictures along the way and will post them when I get all the descriptions written. I am very pleased with the HK heli and will buy a second kit for backup. Hey for $54 you get a lot of spare parts.

    Keep us posted on what you did.


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