Reno Stead Report 8/30

[flyingjibus]

Re: Reno Stead Report 8/30

Nice work on the gear door sticker. See you soon!


(no I'm not Canadian!)

[Leo]

Re: Reno Stead Report 8/30



Thanks for making my day.
I've been out there a bit and following the progress of some racers, but most of them want no news out, so I respect their privacy.
Of course when they say OK like this, then...

[toldjaso]

Re: Reno Stead Report 8/30

This doesn't make any sense to me I would compare a slightly rough surface to putting vortex generators on the wing of a plane-they help keep the airflow attached at higher angles of attack at the expense of added drag. The propeller is just a wing, after all. Maybe the pitch angle is high enough that sanding helps keep the flow attached?

I know the finish on Rutan's Catbird is a slightly rough cross hatching, on the fuselage, amnesty

What you wanna bet they sand the prop chordwise and not spanwise??

What do you think a Q-tip prop does? Keeps the air from sliding off the tip!!

All my smartazz answers are in REAL general terms, by the way...

[Reever]

Re: Reno Stead Report 8/30

If Steve-O said that rubbing peanut butter on his balls made him 10 mph faster there would be an empty shelf at the Lemmon Valley Grocery Outlet...

Okay, no more speed secrets for you BUDDY!

[Desertdawg]

Re: Reno Stead Report 8/30

Thanks for making my day.
I've been out there a bit and following the progress of some racers, but most of them want no news out, so I respect their privacy.
Of course when they say OK like this, then...

Leo,

When I walk up to the hanger, I always ask "is it ok if I take pictures?

Most always they say "go for it".

[Desertdawg]

Re: Reno Stead Report 8/30

About 20 minutes ago I heard the Bear fire up. There is definatey a different tone from the prop?

We'll see once he get airborne.

Been shut off for a while.

Keep you posted.

[GRNDP51]

Re: Reno Stead Report 8/30

About 20 minutes ago I heard the Bear fire up. There is definatey a different tone from the prop?

We'll see once he get airborne.

Been shut off for a while.

Keep you posted.

Videos please please please

[Leo]

Re: Reno Stead Report 8/30

A little bird just told she is in the air.

[Desertdawg]

Re: Reno Stead Report 8/30

The just completed a short 10 minute flight. Once airborne he had his usual deep sound.

Sorry not the best shots using a 300mm lense to pull in from altitude.

[Reever]

Re: Reno Stead Report 8/30

A little bird just told she is in the air.

That little bird better get its butt on the ground or it's going to get eaten by a nasty a$$ Bearcat!

[SkyvanDelta]

Re: Reno Stead Report 8/30

A sanded prop gets better traction. Less "slippage" in the air molecules than with a glossy finish.

Is that a myth or has that/can that be measured?

[ChrisMX105]

Re: Reno Stead Report 8/30

Is that a myth or has that/can that be measured?

If Toldjaso sez it is so then it is fact.

[knot4u]

Re: Reno Stead Report 8/30

Has the 3-blade been so quickly forgotten? It was very shiny in my recollection. The sound was awesome.

[440_Magnum]

Re: Reno Stead Report 8/30

Friction is always bad... unless it enables something with a bigger effect that offsets the badness. A perfectly slick prop would be ideal, unless there's less flow separation if you add a little surface roughness.

Fluid dynamics is hard. That's why I'm an EE. :-p

[toldjaso]

Re: Reno Stead Report 8/30

Has the 3-blade been so quickly forgotten? It was very shiny in my recollection. The sound was awesome.

The three blade prop beat the hell out of Rare Bear's airframe and was a prime candidate to induce control surface flutter. Galloping Ghost showed us what happens with flutter, as did Miss Ashley II. And a few other ones, who were lucky enough to live to talk about it. The motocrosser (forget his name- Mark Hanna was it?- in a P-51?), Miss America P-51 (rudder tab?), Matt Jackson (was it in VooDoo, or some other P-51?).
I am not sure if I remembered all of those correctly, fellers, feel free to add comments about any of my posts. This is just a hobby that I have very little time to comment on and enjoy.