 HeavyArty wrote: |
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Check over at Armorama. Joe "Mother" Szczygielski has done a couple with folded blades. He showed how he did it in one of his posts too. He sometimes posts her as well.
Here are his two CH-46s On Display, at Armorama..
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He got it kind of close on the E model, but on the D, they are way off. When the blades are folded, they don't just fold back or forward at the same angle.
On the real aircraft, the rotor system has to be in one certain position. There are microswitches in the lower flight controls that will give an indication in the cockpit when the rotors are in the right position and when the flight controls are in the correct roll, pitch, yaw, and collective position to allow for blade fold. Basically what happens is that each pitch varying arm will be positioned so that when the blade fold is activated none of the blades will strike one another.
I will post more examples as soon as I can scan some photos.
A possible fix would be to seperate the pitch varying arms and rotate them to the proper angle as well as rotating the blades around the vertical hinge pins to the correct angles.
Jonathan Primm
UPDATE:
Here are some more photos, unfortunately not close ups, but the blade fold configuration can be seen in a couple of them.
And for you '53 types out there. This is what maintenance types have to deal with when the nose gear isn't centered and is retracted, these guys spent about a half hour trying to get the nose gear to extend.
