Forourselves
Super Anarchist
Lol so much for 50k slower than it needs to be then....
So much for bad location selection...
So much for timeframes running out....
ETNZ To Attempt Wind Powered Land Speed Word Record
- Thread starter Stingray~
- Start date
So much for bad location selection...
So much for timeframes running out....
It shouldn't be an issue unless he has to make directional changes if it goes too high. It doesn't contribute to the lateral resistance much at all.
nav
Super Anarchist
- 14,082
- 588
I'll have a go...
180, 190, 200 were the "gears" he was "getting through"
"Passed 200 km/h several times" is an instantaneous speed
"Pushing 200" is his average over the qualifying distance
Liquid
NFLTG
Not concerned about lateral resistance.
When the wheel bounces the entire rig shakes, probably disturbing airflow over the wing.
enigmatically2
Super Anarchist
It was like the 1st day they had to learn how to push the craft. He isn’t going to risk flipping it yet and would also be learning how to balance / react to the force’s. I wouldn’t be surprised that come the record run the wheel even touches down once it’s up , but doing so would be incredibly risky as it’s right on the edge of stability.
nav
Super Anarchist
- 14,082
- 588
So the first time the conditions are decent he's just supposed to go for it? No incremental advances, no testing?
Isn't there a team around who still haven't stepped a mast, let alone gone sailing, because they don't have enough data?
- Thread starter
- #948
Wow!!! Looking good!
barfy
Super Anarchist
- 5,229
- 1,454
I didn't see any timing equipment out, just the truck they were giving bearings to miss. Maybe they surprised themselves, and now have to get the official timing gear set up.
Maybe they quietly broke the record unofficially, and just don't want to jinx the real attempt.
shebeen
Super Anarchist
Should be straightforward from here really!
Question is will they then go and push the limit or just leave it at that?
enigmatically2
Super Anarchist
- Thread starter
- #952
They will push the limit as hard as they can, for sure!
ChairborneRanger
Member
I think Glenn and the team have been pretty clear, they wanted a bit more wind than they have had, and some dry conditions to push to near-record speeds before going for the actual record.
That job is done, so it looks like they are now set for the next time it blows over 20 knots.
That job is done, so it looks like they are now set for the next time it blows over 20 knots.
Sailbydate
Super Anarchist
This conversation reminds me a bit of the old, "It has to be photoshopped. There's no way that cat can foil" conversation. Prolly the same commentators too. Sad. 
Statically Horonuku’s weight is supported on 4 wheels. When flying the outrigger, the weight is on 3 wheels, so more lateral resistance and in the right place, to leeward.
For me, the clever bit is the two aft wheels which provide the bulk of the weight carrying and lateral resistance. They also provide better directional stability. The front wheel probably only has enough grip for steering. Any more than that, and it would probably upset the helm/steering balance.
- Thread starter
- #956
The promising weather forecast coupled with reports of a dry lake was enough for the Landspeed team to remobilise within days and get back to the lake to re-rig Horonuku in searing 40-degree temperatures in preparation for the expected 20+ knot SW front on Sunday evening. It was the most positive session for the Land speed team so far, not yet about the timing or clocking official records but identifying obvious elements that can be improved to increase performance to be able to achieve the best speeds possible.
The_Alchemist
Super Anarchist
Here is the official Greenbird speed record report. Gives you some idea of how it has to be measured, etc.
And here are the rules:
They have to go 1.6 kph above the old record in order for it to be a new record, so they have to hit at least 204.5+ kph to get a new record
And here are the rules:
They have to go 1.6 kph above the old record in order for it to be a new record, so they have to hit at least 204.5+ kph to get a new record
Last edited:
Late on Sunday 11 December is looking good for the record. Hopefully the front will come through earlier rather than later. Does Horonuku have nav lights?:
Tomorrow (Wednesday) is looking good for more testing/tuning.
Tomorrow (Wednesday) is looking good for more testing/tuning.
Waynemarlow
Super Anarchist
Love the steering correction at 0.11 in the vid to bring the ama wheel back down to terra firma, how many of us could do that at over 100mph and understand why you are doing it ?
Forourselves
Super Anarchist
What's "odd" is that you're being picky about them talking about the incremental gains they're making. Surely testing a new craft designed for speed is all about making incremental gains.
