VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Search Forums
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 62 of 500
Search took 0.19 seconds.
Search: Posts Made By: scsmith
Forum: RV General Discussion/News 04-07-2019, 01:36 AM
Replies: 17
Views: 1,098
Posted By scsmith
I think the answer to this is YES. The ends of...

I think the answer to this is YES. The ends of the outer sleeves are threaded to hold them to brackets at the ends.
Forum: RV General Discussion/News 03-31-2019, 04:05 PM
Replies: 417
Views: 1,434,635
Posted By scsmith
This theory doesn't explain blisters under vinyl...

This theory doesn't explain blisters under vinyl wrap.

Might be changes in formulation of the ProSeal though.
Forum: GPS 03-31-2019, 12:16 PM
Replies: 140
Views: 16,355
Posted By scsmith
This may be an early test of how Boeing dictates...

This may be an early test of how Boeing dictates ForeFlight priorities.
Forum: RV-7/7A 03-30-2019, 06:38 PM
Replies: 56
Views: 15,579
Posted By scsmith
It is not a matter of laminar vs turbulent flow,...

It is not a matter of laminar vs turbulent flow, it is a matter of reduced effective flow area because of separated flow regions.

The only way you will be able to assess performance is a...
Forum: RV-7/7A 03-30-2019, 01:29 PM
Replies: 56
Views: 15,579
Posted By scsmith
To Scott especially, but everyone really -- On...

To Scott especially, but everyone really --

On the intake flow into the filter, you really want to avoid sharp edges on plates that the flow has to go over as it turns down into the filter. Ideally...
Forum: GPS 03-28-2019, 10:57 AM
Replies: 140
Views: 16,355
Posted By scsmith
Could someone with a GNS 430W please measure the...

Could someone with a GNS 430W please measure the actual screen height on the 430?
Forum: GPS 03-27-2019, 07:45 PM
Replies: 140
Views: 16,355
Posted By scsmith
It looks like the Bluetooth supports interfacing...

It looks like the Bluetooth supports interfacing to iOS running FltPlan Go, but not ForeFlight. Is that correct?
Forum: GPS 03-26-2019, 07:17 PM
Replies: 140
Views: 16,355
Posted By scsmith
Plus radios of course.

Plus radios of course.
Forum: GPS 03-26-2019, 12:45 PM
Replies: 140
Views: 16,355
Posted By scsmith
Just for reference, how does the vertical height...

Just for reference, how does the vertical height of the screen compare to a GNS 430?

The GNX 375 is 2.02" high, and almost the full height is screen.

The GNS 430 is 2.65" high, but the screen does...
Forum: Safety 03-19-2019, 07:51 PM
Replies: 12
Views: 894
Posted By scsmith
Yes that is correct. The side rails are long...

Yes that is correct. The side rails are long enough to still rest on the cabin cross brace, with no other modification. I normally have a Aero Classics seat in the front, I just pull that one out...
Forum: Safety 03-19-2019, 11:44 AM
Replies: 12
Views: 894
Posted By scsmith
I updated the URL to the photo of my modified...

I updated the URL to the photo of my modified seat back that helps with comfort with my long softie. It also helps to pack the chute "diaper down" to create a shape that is thicker down low and...
Forum: RV-8/8A 03-18-2019, 11:16 PM
Replies: 8
Views: 2,507
Posted By scsmith
Yes, this is good advise. At some point after...

Yes, this is good advise. At some point after this thread started, I figured out how to ask the rigger to pack the chute "diaper down" which puts more of the bulk at the bottom and reverses the...
Forum: Safety 03-18-2019, 11:12 PM
Replies: 12
Views: 894
Posted By scsmith
I have a long softie which I use in my glider, so...

I have a long softie which I use in my glider, so naturally I want to use it in the RV-8 also. I found that the thickness of the parachute situates you closer to the instrument panel -- that is...
Forum: RV-8/8A 03-16-2019, 11:13 AM
Replies: 8
Views: 677
Posted By scsmith
Those look great. Now.....brakes?

Those look great. Now.....brakes?
Forum: RV-8/8A 03-15-2019, 09:47 PM
Replies: 8
Views: 677
Posted By scsmith
they are not difficult to retro-fit, but I think...

they are not difficult to retro-fit, but I think you would be disappointed in them. You should see an -8 that has them installed first before you decide to go through the bother.
Forum: Propellers 03-13-2019, 03:00 PM
Replies: 30
Views: 5,793
Posted By scsmith
Yes, that is likely true. Although, even the...

Yes, that is likely true. Although, even the aluminum BA blades are fairly thin.
Forum: Propellers 03-11-2019, 07:51 PM
Replies: 30
Views: 5,793
Posted By scsmith
classical prop design vs modern prop design

The OP mentioned that Jack Norris had commented about the Hartzell prop not being optimum based on classical propeller theory. In case anyone is interested, I can expand on that a little...
Forum: Electrical Systems 03-09-2019, 07:03 PM
Replies: 29
Views: 2,335
Posted By scsmith
I think by definition, if you have only one...

I think by definition, if you have only one battery, you have a single point of failure. It may be a very unlikely one, but it is a single point none the less. There does seem to be varying opinion...
Forum: RV General Discussion/News 03-05-2019, 12:38 PM
Replies: 9
Views: 958
Posted By scsmith
I share your pain. I used to share a hangar with...

I share your pain. I used to share a hangar with a Skywagon, and I would have to move it out to get my RV-8 out, then put the Skywagon back. Two in-out's per RV flight. Fortunately, we had a...
Forum: RV-4 02-28-2019, 12:21 PM
Replies: 103
Views: 63,462
Posted By scsmith
Yes I would say it is a very noticeable...

Yes I would say it is a very noticeable improvement. Especially noticeable on dirt, but also on grass.
Forum: RV-4 02-28-2019, 12:20 PM
Replies: 103
Views: 63,462
Posted By scsmith
I've observed this too. Surprising to me. One...

I've observed this too. Surprising to me. One would think they would manufacture tires that were more round. Seems like you would stagger the ply overlaps at various clock positions around the...
Forum: RV-10 02-26-2019, 09:18 PM
Replies: 33
Views: 2,687
Posted By scsmith
Well, like I said Gary, I might be imagining it. ...

Well, like I said Gary, I might be imagining it. I don't remember specifically WHERE I saw it, only that I came across it while trying to understand the sludge I found when I pulled my prop and had...
Forum: RV-10 02-26-2019, 10:33 AM
Replies: 33
Views: 2,687
Posted By scsmith
I seem to recall a recommendation of 500 hrs...

I seem to recall a recommendation of 500 hrs somewhere in Lycoming literatature, but I can't remember where. I could be imagining it.

I didn't know anything about the sludge at 300 hrs when my prop...
Forum: RV General Discussion/News 02-22-2019, 11:51 AM
Replies: 14
Views: 1,000
Posted By scsmith
The Continental O-470 on my 182 has locknuts on...

The Continental O-470 on my 182 has locknuts on the back of the prop flange. I've never seen a Lycoming without inserts, but I have not looked at that many. Maybe some didn't use...
Forum: RV General Discussion/News 02-22-2019, 11:17 AM
Replies: 14
Views: 1,000
Posted By scsmith
First thought was to re-balance the prop. But a...

First thought was to re-balance the prop.

But a hairbrained idea did flash across my mind. Could a whole bunch of elastomeric lock washers on rotating hardware add up a hint of damping?....

No,...
Forum: RV-8/8A 02-22-2019, 11:12 AM
Replies: 45
Views: 7,717
Posted By scsmith
building cost benchmark

I can help you with a cost estimate for building. It is more than you assumed.

I built a quick-build, with a VERY good deal on a 0 SMOH rebuilt IO-360 that I lucked into. I have a simple VFR...
Forum: Traditional Aircraft Engines 02-18-2019, 06:12 PM
Replies: 11
Views: 1,882
Posted By scsmith
At our shop, we turn a standard $2.00 pair of...

At our shop, we turn a standard $2.00 pair of scissors into Kevlar scissors in about 3 minutes on a grinding wheel. Hopefully Bob Kuykendall will chime in with the finer points, but basically you...
Forum: RV-8/8A 02-17-2019, 09:35 AM
Replies: 4
Views: 935
Posted By scsmith
Over the years, the drawings have been...

Over the years, the drawings have been renumbered, and sometimes not all the cross references to a given number are found and changed. Likely you have the drawing, but it has a different number.

In...
Forum: Safety 02-17-2019, 12:20 AM
Replies: 22
Views: 2,174
Posted By scsmith
There apparently is a distinction here between...

There apparently is a distinction here between LSA and EAB or other certificated aircraft. It apparently is within the LSA certification process to placard "maximum" conditions, unlike EAB or other...
Forum: RV General Discussion/News 02-17-2019, 12:08 AM
Replies: 497
Views: 223,409
Posted By scsmith
This is old, but it made me laugh. Hockey...

This is old, but it made me laugh. Hockey goalie, baseball catcher, jousting partner, wild weasel mission pilot, javelin catcher, these are jobs for a certain type of deranged individual who seems...
Forum: RV General Discussion/News 02-16-2019, 11:52 PM
Replies: 497
Views: 223,409
Posted By scsmith
Cool. And you do that from Ocean City? Either...

Cool. And you do that from Ocean City? Either that, or you have one **** of a commute!
Forum: Propellers 02-16-2019, 12:08 AM
Replies: 19
Views: 859
Posted By scsmith
F=MA. It takes more torque to accelerate it, but...

F=MA.

It takes more torque to accelerate it, but it does not take any more force or torque to keep it moving at a fixed RPM.

It does take a little more lift from the wings to support the added...
Forum: Glass Cockpit 02-14-2019, 04:32 PM
Replies: 20
Views: 1,162
Posted By scsmith
Well, about $1K for the second radio, but then...

Well, about $1K for the second radio, but then you also need an audio panel, and it all starts to take up a lot of space on an RV-8 panel. The remote helps that some, although the instrument bay...
Forum: Glass Cockpit 02-14-2019, 12:40 PM
Replies: 20
Views: 1,162
Posted By scsmith
I was considering the GTN 650 as the only radio. ...

I was considering the GTN 650 as the only radio. Do I really need another?
Forum: Glass Cockpit 02-13-2019, 08:47 PM
Replies: 20
Views: 1,162
Posted By scsmith
How about dual nav/comms? Seems like radios are...

How about dual nav/comms? Seems like radios are so good these days that one would be OK?
Forum: RV General Discussion/News 02-13-2019, 12:10 PM
Replies: 5
Views: 852
Posted By scsmith
I think I figured it out. If I use https:, I get...

I think I figured it out.

If I use https:, I get a notice that a security credential has expired. If I use http:, I get the googley eyes /* * /

Same on iMac, HP-windows, iPad.

If I turn wifi...
Forum: RV General Discussion/News 02-12-2019, 08:46 PM
Replies: 5
Views: 852
Posted By scsmith
This is what I see: /* */ That's it. Otherwise...

This is what I see:

/* */

That's it. Otherwise a plain white page. Tried both Firefox and Safari.
Forum: RV General Discussion/News 02-12-2019, 06:23 PM
Replies: 5
Views: 852
Posted By scsmith
Vetterman Exhaust website?

What happened to Vetterman's website?
Forum: RV General Discussion/News 02-11-2019, 12:41 PM
Replies: 12
Views: 1,018
Posted By scsmith
Well, actually, no. The rocket is air-launched...

Well, actually, no. The rocket is air-launched from a carrier aircraft at about 40,000 ft.

When it comes back down to earth, it is not a rocket, it is a glider. So maybe it should have a glider...
Forum: RV General Discussion/News 02-10-2019, 05:22 PM
Replies: 12
Views: 1,018
Posted By scsmith
Yeah, I know. I always think of him though. I...

Yeah, I know. I always think of him though. I helped take the (then) new PIK-20E self-launch glider on a marketing tour through the southwest to show it off. Summer of 1978 or 79. We spent a...
Forum: RV General Discussion/News 02-10-2019, 02:23 PM
Replies: 12
Views: 1,018
Posted By scsmith
I guess the Virgin Galactic guys fly out of...

I guess the Virgin Galactic guys fly out of Mohave, so that kind of makes sense, although it all happens up so high I don't see why it would be important for VFR charts.

But what is at Midland? ...
Forum: RV General Discussion/News 02-10-2019, 02:02 PM
Replies: 12
Views: 1,018
Posted By scsmith
OT fun sectional markings

This is kinda off topic, but may be of general interest, and maybe someone that lives in the area can help.

For some reason, I happened to pull up a Sectional for Midland-Odessa area of Texas. ...
Forum: RV General Discussion/News 02-09-2019, 11:26 PM
Replies: 107
Views: 26,074
Posted By scsmith
Wow! This is the first I have seen of this whole...

Wow!
This is the first I have seen of this whole thread. What a saga. How blessed you and Pi are to have come through this all. The best hope that she continues to improve and live a totally...
Forum: RV General Discussion/News 02-09-2019, 06:59 PM
Replies: 61
Views: 6,067
Posted By scsmith
Dave, the upper cowl is essentially stopped flow,...

Dave, the upper cowl is essentially stopped flow, just mixing around with fairly low velocity. Where the flow rushes into the cooler, it has to turn around a corner along the edges, and a separation...
Forum: RV General Discussion/News 02-09-2019, 12:30 PM
Replies: 61
Views: 6,067
Posted By scsmith
All looks really good Scott. Very clever using...

All looks really good Scott. Very clever using an inner tube. What is the diameter of the tube?

In thinking about mounting the cooler on the firewall with two angles like that, I've been concerned...
Forum: RV General Discussion/News 02-09-2019, 11:23 AM
Replies: 12
Views: 1,537
Posted By scsmith
Tools? Just imagine what your camshaft looks...

Tools? Just imagine what your camshaft looks like.
Forum: RV General Discussion/News 02-08-2019, 01:31 PM
Replies: 61
Views: 6,067
Posted By scsmith
That looks like a great way to do it with the hub...

That looks like a great way to do it with the hub Dave has.
It looks like you cut off the normal flange on the cowl that extends back toward the flywheel at 45 or so.

My hub does not have a round...
Forum: RV General Discussion/News 02-08-2019, 12:26 AM
Replies: 61
Views: 6,067
Posted By scsmith
In hindsight, you are probably right. At the...

In hindsight, you are probably right. At the time, my thinking was that the velocity coming into the plenum box thru the SCAT hose is rather low, and so any loss is very small. However, I also used...
Forum: Propellers 02-08-2019, 12:15 AM
Replies: 71
Views: 13,346
Posted By scsmith
Metal spar!

Mark, you said something that raised a flag for me. Metal spar, carbon skin.

Have you exposed it to unusually high temperatures?
There is a big mismatch in thermal expansion coefficient between...
Forum: RV General Discussion/News 02-06-2019, 06:13 PM
Replies: 7
Views: 841
Posted By scsmith
Thanks Kahuna, this is exactly the info I was...

Thanks Kahuna, this is exactly the info I was looking for. I was not advocating being dishonest or fraudulent by withholding information. As Toobuilder said, if they ask what engine, I would tell...
Forum: RV General Discussion/News 02-05-2019, 10:04 PM
Replies: 7
Views: 841
Posted By scsmith
Insurance: Rocket vs RV-8 vs Super-8

It is often stated that a Rocket has higher insurance cost than an RV-8. Some say as much as 3x the rate of an RV-8 for the Rocket.

Here is a question:

If I build a Super-8, I imagine that I just...
Forum: RV General Discussion/News 02-05-2019, 05:40 PM
Replies: 61
Views: 6,067
Posted By scsmith
Long gradual (high fineness) shapes are best for...

Long gradual (high fineness) shapes are best for preventing flow separation, but long passageways with high velocities have a lot of skin friction loss. A really good augmentor (you mentioned Andy...
Forum: RV-4 02-05-2019, 05:19 PM
Replies: 3
Views: 617
Posted By scsmith
The easiest way is to add a bump to either the...

The easiest way is to add a bump to either the belly or the inside of the cowl. A belly bump should be fairly rounded on the front and extend just inside the cowl, and very gradually sloped to blend...
Forum: RV General Discussion/News 02-05-2019, 03:05 PM
Replies: 29
Views: 2,275
Posted By scsmith
Sorry for the thread drift, but I am interested...

Sorry for the thread drift, but I am interested in your oil cooler mount. It looks like it is just hovering in space there. Can you tell us about your mount?
Forum: RV General Discussion/News 02-05-2019, 01:17 PM
Replies: 61
Views: 6,067
Posted By scsmith
HI Charlie, lets see if this helps: The oil...

HI Charlie, lets see if this helps:
The oil cooler is dumping its flow into the lower cowl plenum, and as always with subsonic flow exits, the pressure in the oil cooler flow at the exit must match...
Forum: RV General Discussion/News 02-05-2019, 01:05 PM
Replies: 61
Views: 6,067
Posted By scsmith
Sometimes I wish this forum had a "like" button! ...

Sometimes I wish this forum had a "like" button! Made me smile..... a lot!
Forum: RV General Discussion/News 02-05-2019, 12:48 AM
Replies: 61
Views: 6,067
Posted By scsmith
Thanks Dan, All pretty good ideas. Certainly...

Thanks Dan,

All pretty good ideas. Certainly would have been tons easier to do all this while building. On a finished airplane, ARRGH!

So either one buys several of the manometers, or you sit and...
Forum: RV General Discussion/News 02-04-2019, 06:56 PM
Replies: 61
Views: 6,067
Posted By scsmith
I guess since you have mentioned it, I can't...

I guess since you have mentioned it, I can't resist satisfying my academic interest too. My original plan for the diffuser and the cowl nose seal was just to do what I know would make it "better"...
Forum: RV General Discussion/News 02-04-2019, 06:11 PM
Replies: 61
Views: 6,067
Posted By scsmith
Charlie, I guess the original info on an exit...

Charlie, I guess the original info on an exit diffuser increasing the velocity through the heat exchanger is Bernoulli's Equation.

And yes, we all have a very nice diffuser on the inlet side, it...
Forum: RV General Discussion/News 02-04-2019, 06:02 PM
Replies: 61
Views: 6,067
Posted By scsmith
Ross, it is a gross simplification to state one...

Ross, it is a gross simplification to state one pressure for the spinner gap. If you go back and look at your CFD results, you should see that the pressure along the bottom of the spinner where it...
Forum: RV General Discussion/News 02-04-2019, 05:12 PM
Replies: 61
Views: 6,067
Posted By scsmith
Thanks. Thats a pretty good idea. It would...

Thanks. Thats a pretty good idea. It would actually help with the diffusion too.
Forum: RV General Discussion/News 02-04-2019, 05:12 PM
Replies: 61
Views: 6,067
Posted By scsmith
Thats a pretty good idea!

Thats a pretty good idea!
Showing results 1 to 62 of 500

 
Forum Jump

All times are GMT -6. The time now is 10:12 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.