Armstrong HA1125

[Deepwater]

Can anyone shed light on the A+ system & it's compatibility to the current fuselage/overall system ...?

[exiled]

I just couldn't resist.

Go Foil had a prototype that was barking up a pretty similar tree about 4 months age: https://www.instagram.com/p/CGvilepjmv9/

[Dwight (DW)]

Can anyone shed light on the A+ system & it's compatibility to the current fuselage/overall system ...?

Per social media comments, it is extra screws. Reverse compatible. Instructions for retrofitting screws to older parts.

My personal opinion is, the extra screws might be addressing the random wobble seen in some kits. Lose fitting hex, or worn hex. Also snapped screws. Any play in the hex, could possibly cause two issues. The hex wearing more from the wobble, and the screws snapping from fatigue. Stainless screws cannot tolerate back and forth side loading. They would work harden and snap. The side loading should be taken by the hex, not the screws.

[Hdip]

The new wing is over a meter wide. I assume that's why they needed a second screw to hold it all stable. Starboard does a similar side screw too I think.

The retrofit jig kit is supposed to cost $600?

[Dwight (DW)]

The new wing is over a meter wide. I assume that's why they needed a second screw to hold it all stable.

That’s a no-way in my opinion.

High aspect wings put less torque on the connection and mast, than the 2400 by a wide margin.

The 2400 feels like a dogs tail wagging under the board.

[Dwight (DW)]

further clarification. Racy high aspect wings are low area. So there just isn’t enough under there to stain the mast/fuse.

Now if the 1125 was 1800 sq cm, then the rules change.

[Vancouver_foiler]

think lever.

[Bermuda Foiler]

Video on the HA1125 foil:

https://www.youtube.com/watch?v=KiA6mzFJGcE

[Alysum]

At my local spot there's a friend who always has to use a mallet to assemble/disassemble the fuselage with the mast. It's pretty worn out now. His front wing does seem to wobble a bit on the hex.
It's going to be interesting to see how durable the whole kit is with HA wings. The screws are tiny.

[clay]

If Axis came out with curvy wings like this I would be stoked.

I know plenty of 200+ riding sub 1100 area wings no problem.

I don't believe the Armstrong mast/fuse system are strong nor stiff enough for wings this wide.

[Califoilia]

If Axis came out with curvy wings like this I would be stoked.

Curious as to what you like about the curvy wing tips, and/or the benefit(s) of them.

[deja vu]

I don't believe the Armstrong mast/fuse system are strong nor stiff enough for wings this wide.

The system has been upgraded and is backwards compatible.  The 1550 foil has also been upgraded to a higher aspect V2.

https://www.youtube.com/watch?v=2bXlJfvnrXI

https://www.youtube.com/watch?v=XOf0ayVoLg4&t=26s

[Alysum]

If Axis came out with curvy wings like this I would be stoked.

That's what the 900/1000 HA wings had with the downturned tips.
They were great but now the HPS wings are even better, they turn just as well if not better.

A flatter front wing will have less drag and probably more solid too.

If you want to turn a bit more, the Axis BSC series has more downturned tips than HPS.

[PonoBill]

I've never understood Armstrong's decision to use a hex plug. Harder to manufacture to reasonable tolerance, less resistance to torque. A tapered square plug makes a lot more sense from a design standpoint. Better yet, bail from the entire plug design. That's the reason I switched to Axis.

[Dontsink]

Same with Takuma wing to fuse joint.
I suspect there is a lot of interest in making it difficult for 3rd party manufacturers or DIYr to make cheaper and/or better fuses,mast etc...
Just look at the Armstrong stab to fuse joint...so unnecessarily complex.