Using a HD solo rigger, can one person comfortably assemble an Arcus? Have you actually seen it accomplished?
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Using a HD solo rigger, can one person comfortably assemble an Arcus? Have you actually seen it accomplished?
Using a HD solo rigger, can one person comfortably assemble an Arcus?
Have you actually seen it accomplished?
...When trying to figure out the correct position of the wing (still standing in the rigging cart) relative to the fuselage, just align a line (the side of a tape) put on the wing root spar with the fuselage fairing. When these are parallel to each other, then turn the wing just outside the fuselage, insert the wing in the fuselage and it will fit perfectly. Yes, you still need to drive a bit around but you have a precise measurement just before you insert the wing. The plastic tape or something else you bring on the wing spar the first time you derig by taking out the wing, turn it on its side, all close by the fuselage.
Dave, if you could send me some details on the actuator (make, brand) you used that would be great. On the subject of the video, 2 questions:
- why landing flaps (I know, this is prescribed in the manual; I prefer flaps neutral)?
- why do you keep the Cobra aileron/flap holders (with the elastic band around the wing) on during rigging? Does that help in any way rigging?
Regarding leaving the "gust lock" on the wing during rigging/derigging:
If not left on, there is the chance that the aileron could deflect far enough downward that
the underside mylar pops free and tries to reposition itself on top of the upper mylar....
if not noticed and the aileron is later raised, you could damage the mylars...
This is an important matter. Probably not an issue with factory installed mylar but maybe more possibly a problem in the case of later year replacement of the mylar.
At extreme control deflection, the mylar on the control surface
must not be able to escape the mylar on the wing/fin/stabiliser. I
seem to recall a double fatal accident in the Netherlands many
years ago with a Janus sailplane where on approach to land
sufficient down elevator was applied such that the mylar on the
upperside of the elevator slid out from underneath the mylar from
the stabiliser upper surface. Subsequent return of the elevator
to neutral or up elevator caused the mylar on the elevator to be
forced up and it stood up sufficient to ruin the airflow and lead
to loss of elevator authority.
Regarding leaving the "gust lock" on the wing during rigging/derigging. If not left on, there is the chance that the aileron could deflect far enough downward that the underside mylar pops free and tries to reposition itself on top of the upper mylar.... if not noticed and the aileron is later raised, you could damage the mylars...
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On Monday, August 29, 2016 at 4:13:34 AM UTC-4, Kees Van Schaick wrote:...When trying to figure out the correct position of the wing (still standing in the rigging cart) relative to the fuselage, just align a line (the side of a tape) put on the wing root spar with the fuselage fairing. When these are parallel to each other, then turn the wing just outside the fuselage, insert the wing in the fuselage and it will fit perfectly. Yes, you still need to drive a bit around but you have a precise measurement just before you insert the wing. The plastic tape or something else you bring on the wing spar the first time you derig by taking out the wing, turn it on its side, all close by the fuselage.
That looks helpful - I will copy the markings from your photos.
Also I will make a string gauge to place a mark on the ground for the wing dolly position.
Too much 'driving around'!
Dave, your experience was obviously awful.
Is there anything about it that other Arcus M owners should know?
My one-man rigger (discussed and pictured here) is for sale...