Hunting for microknots

[glider69]

Re: Hunting for microknots

Thanks for writing this highly interesting article. I love reading technical stuff like this

[CubersWrist]

Re: Hunting for microknots

Thank you. I enjoyed writing it and sharing some of what we do in sport class.

We gained over 30mph this year, but according to the math, the wingtips are responsible for only 5 of them. The rest comes from body work, paint (and no wrap), propeller design, horsepower, improved cooling, and dozens of other little things.

[Race5]

Re: Hunting for microknots

So what are the planned mods for this off season?

[CubersWrist]

Re: Hunting for microknots

Oh there's a list....
But they aren't as flashy as cutting the wingtips off or getting a new paintscheme.
Item 1 is automate the ADI and spray bar systems. If you watch the in-cockpit views you see him flipping switches throughout the race to turn different pumps on and off. That needs to end.

[Race5]

Re: Hunting for microknots

Oh there's a list....
But they aren't as flashy as cutting the wingtips off or getting a new paintscheme.
Item 1 is automate the ADI and spray bar systems. If you watch the in-cockpit views you see him flipping switches throughout the race to turn different pumps on and off. That needs to end.

Automating stuff like that can get you in trouble too. I do agree it is still better than a full manual system though.

[CubersWrist]

Re: Hunting for microknots

Speed mod season 2019 has begun!

Working on getting an update on the website for 2018, but in the meantime Andy did a podcast with EAA.

Edit: got the website stuff cleared up and updated. Andy's write up for 2018 is here.

[CubersWrist]

Re: Hunting for microknots


Compound boost!

[AAFO_WSagar]

Re: Hunting for microknots

Holy air pumps Batman!

[Race5]

Re: Hunting for microknots

Looks like the new 0401 model turbos.

[GRNDP51]

Re: Hunting for microknots

Looks like the new 0401 model turbos.

Four Fool Turbos?

[georgiacub]

Re: Hunting for microknots

[ATTACH=CONFIG]24203[/ATTACH]
Compound boost!

I think that wouldn't be searching for micro knots but maximum problems. But considering the day it was sent I have to and say you didn't even fool me once.

[CubersWrist]

Re: Hunting for microknots

Hah! "model 0401 turbos"

Searching for more speed always causes more problems.
Seriously the progression has been: we need more boost, now we need more air to the turbo, now we need more fuel flow, now we can make all this power but we need a new piston design and lots and lots of cooling of cooling to keep up....And so the cycle repeats

[CubersWrist]

Re: Hunting for microknots


And to prove we really are working on stuff here's some baffling that we're going to test in the next couple weeks.
This has been on the to-do list since the gold race.
If you go back and watch laps 1 and 2 again, you'll notice Andy's right hand quickly go to the SDS panel. The SDS enables him to program fuel flow levels for each cylinder, and #6 temps started to run away. The air comes into the plenum so fast it doesn't have time to slow down (despite our best plenum efforts) and ends up "jumping" over the first cylinders. We had already put a similar baffle on #5 in VA, which had previously been the hottest cylinder during test runs.

[Reever]

Re: Hunting for microknots

[ATTACH=CONFIG]24203[/ATTACH]
Compound boost!

Good grief those turbos must generate a crazy amount of heat. It's a science unto itself how that heat is managed. Thank you CubersWrist for the updates.

[CubersWrist]

Re: Hunting for microknots

Been negligent about this. This is our latest integration project...


And Justin Lee just uploaded his interview with Andy

https://www.professionalsplaybook.com/listen