Blade 400 pitch and bind question?
07-25-2009 | 01:12 AM
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From: Benin City, Edo StateEdu State, NIGERIA
Blade 400 pitch and bind question?
Hi
When setting blade pitch the throttle stick must be at the half stick position with the heli deactivated and powered up and the pitch guage on the blade. In what position in the rotor "disk" must the blade be. Both Sokal and Horizon show that when facing from the top the blade must be in the nine o clock position. Is this important. Must it only be zero when in that position or zero all around the "disk". I am currently busy reading up on the mechanics of the Bell Hiller system. I still do not fully understand the way a heli flies. I suspect the balde pitch changes as the blades revolve.
Secondly, when I make changes to the Spectrum DX 6i program, must 'n go through the process of binding and where does the bind plug go in on the Blade 400?
When setting blade pitch the throttle stick must be at the half stick position with the heli deactivated and powered up and the pitch guage on the blade. In what position in the rotor "disk" must the blade be. Both Sokal and Horizon show that when facing from the top the blade must be in the nine o clock position. Is this important. Must it only be zero when in that position or zero all around the "disk". I am currently busy reading up on the mechanics of the Bell Hiller system. I still do not fully understand the way a heli flies. I suspect the balde pitch changes as the blades revolve.
Secondly, when I make changes to the Spectrum DX 6i program, must 'n go through the process of binding and where does the bind plug go in on the Blade 400?
07-25-2009 | 01:27 AM
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From: Arlington,
TX
RE: Blade 400 pitch and bind question?
Go to Helifreak and watch the Finless Bob set-up video. He's got the most comprehensive video instruction available for setting up a CCPM heli.
1. The blades need to at the 3 and 9 o'clock position with the nose being 12 o'clock.
2. The fly-bar paddles must be held level. Use your Eflite blade crutch mounted on the boom to hold the rear paddle ....stick it in the upper slot.
3. Your pitch gage must be referenced to and aligned with the level fly-bar when setting the pitch for each blade.
4. With the throttle stick in the middle, your pitch should read zero for each blade. (fly-bar paddles must be level also)
5. Get help if you don't know what you're doing.
If you've already viewed and understand Finless Bob's video then Sokal's video will make more sense.
1. The blades need to at the 3 and 9 o'clock position with the nose being 12 o'clock.
2. The fly-bar paddles must be held level. Use your Eflite blade crutch mounted on the boom to hold the rear paddle ....stick it in the upper slot.
3. Your pitch gage must be referenced to and aligned with the level fly-bar when setting the pitch for each blade.
4. With the throttle stick in the middle, your pitch should read zero for each blade. (fly-bar paddles must be level also)
5. Get help if you don't know what you're doing.
If you've already viewed and understand Finless Bob's video then Sokal's video will make more sense.
07-25-2009 | 02:52 AM
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From: Benin City, Edo StateEdu State, NIGERIA
RE: Blade 400 pitch and bind question?
rowdyjoe, thanx for the reply. I cannot download or view YouTube or any other video. It seems to be ISP based as with the same computer in South AFrica I was able to download some of the SOKAL videos. I will try again but thanx for the info so far.
07-26-2009 | 10:30 PM
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From: Perth, AUSTRALIA
RE: Blade 400 pitch and bind question?
Don't forget that you should also be in either F. Mode 1 (Idle Up) or throttle hold (in which case you don't need to move the stick). For F. Mode 1 you will need to center the stick, but disconnect the motor.
The other thing to remember is that with the blades at 9 and 3 o-clock you are dealing with pitch - if you did this with the blades at 12 and 6 o-clock you will be dealing with elevator.
Jon
The other thing to remember is that with the blades at 9 and 3 o-clock you are dealing with pitch - if you did this with the blades at 12 and 6 o-clock you will be dealing with elevator.
Jon
07-28-2009 | 07:19 PM
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From: Avon,
CO
RE: Blade 400 pitch and bind question?
Not exactly guys...
Collective pitch can be measured with the blades in any position.
The important thing is to have the flybar level, 90° to the main shaft, and to align the pitch gauge with the leveled flybar. It's just easier to do this with the blades at 3 and 9 o'clock.
It's always a good idea to check the pitch on both blades and on both sides of the heli.
Cyclic Aileron pitch is measured at full left and right stick with the blades aligned with the boom.
Cyclic Elevator pitch is measured at full forward and backwards stick with the blades at 3 and 9 o'clock, again.
Collective pitch can be measured with the blades in any position.
The important thing is to have the flybar level, 90° to the main shaft, and to align the pitch gauge with the leveled flybar. It's just easier to do this with the blades at 3 and 9 o'clock.
It's always a good idea to check the pitch on both blades and on both sides of the heli.
Cyclic Aileron pitch is measured at full left and right stick with the blades aligned with the boom.
Cyclic Elevator pitch is measured at full forward and backwards stick with the blades at 3 and 9 o'clock, again.
