In general, given similar construction methods and dimensions (thickness of foil etc) the shorter will be stiffer...and there are limitations on construction methods beyond 100 cm and maintaining foil thinness and being stiff and strong enough.
I just went and torqued on my girlfriends 91 moses (2018) and twisting topped out at about an inch of deflection at the tail of the fuse. My 101 is in my vehicle so will have to compare at some point when its out but I expect it to be about the same.....
Sounds like you have a noodle of a mast and I would question it being normal!!
Moses 633 questions
-
tegirinenashi
- Very Frequent Poster
- Posts: 815
- Joined: Wed Aug 27, 2014 3:29 am
- Local Beach: 3rd Ave
- Gear: Bates 4000, Dominator MX-10
- Brand Affiliation: None
- Has thanked: 33 times
- Been thanked: 36 times
Re: Moses 633 questions
Comparing stiffness "by hand" is only useful when you do it yourself. Because the other person's idea of how much torsion to apply might be different.
The standard is 5kg flex&torsion test. I wonder why manufacturers don't bother to publish any numbers. Well, those figures might differ from sample to sample -- they most likely to reply. OK, but then, if you call yourself a premium manufacturer, then aren't you suppose to subject your product to quality control, and reject those samples that deviate from the specs?
The standard is 5kg flex&torsion test. I wonder why manufacturers don't bother to publish any numbers. Well, those figures might differ from sample to sample -- they most likely to reply. OK, but then, if you call yourself a premium manufacturer, then aren't you suppose to subject your product to quality control, and reject those samples that deviate from the specs?
-
Bidello
- Medium Poster
- Posts: 88
- Joined: Sat Sep 30, 2006 4:46 pm
- Brand Affiliation: None
- Has thanked: 1 time
- Been thanked: 0
Re: Moses 633 questions
Right, so taking into account that on a 710 fuselage the distance between the centre of the mast slot and the stab is about 43 cm, one inch of movement equals to slightly above 3 degree torsion.cwood wrote: In general, given similar construction methods and dimensions (thickness of foil etc) the shorter will be stiffer...and there are limitations on construction methods beyond 100 cm and maintaining foil thinness and being stiff and strong enough.
I just went and torqued on my girlfriends 91 moses (2018) and twisting topped out at about an inch of deflection at the tail of the fuse. My 101 is in my vehicle so will have to compare at some point when its out but I expect it to be about the same.....
Sounds like you have a noodle of a mast and I would question it being normal!!
Certainly not 45 degrees!
Who is online
Users browsing this forum: matt_81a and 105 guests