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Search: Posts Made By: scsmith
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) Yesterday, 10:37 PM
Replies: 7
Views: 959
Posted By scsmith
OR is the abbreviation for Oregon. A previous...

OR is the abbreviation for Oregon. A previous post was unclear what state this event was to be held in.

Axel - I'm hoping to make it and looking forward to meeting you in person!
Forum: RV-8/8A Yesterday, 10:33 PM
Replies: 3
Views: 166
Posted By scsmith
Mike Seager in Vernonia, OR? He will help you...

Mike Seager in Vernonia, OR? He will help you with transition training in RVs, probably an RV-7, with enough hours that you will feel comfortable jumping in your RV-8. That's what I did. Trust me,...
Forum: Fiberglass Yesterday, 10:23 PM
Replies: 8
Views: 321
Posted By scsmith
We use Jeffco (now Rhino) 1307LV almost...

We use Jeffco (now Rhino) 1307LV almost exclusively. It is much cheaper than West, and a much better resin system. We normally buy it from ACS. The specs are essentially identical to the European...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) Yesterday, 06:56 PM
Replies: 7
Views: 959
Posted By scsmith
I DID write Independence, OR.....just sayin'

I DID write Independence, OR.....just sayin'
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 08-09-2022, 09:50 PM
Replies: 7
Views: 959
Posted By scsmith
RV-15 at Independence?

Rumor has it that the RV-15 might drop into Independence, OR this Sunday, 8/14, for the annual STOL competition. Absolutely just a rumor, completely unconfirmed, from a questionable source. ...
Forum: RV-15 07-31-2022, 07:53 PM
Replies: 457
Views: 91,148
Posted By scsmith
Ask anyone with a C170. One of the few...

Ask anyone with a C170. One of the few shortcomings it has is that it is woefully underpowered. The O-360 STC helps a ton. the IO-390 would be even better!
Forum: RV General Discussion/News 07-29-2022, 06:27 PM
Replies: 94
Views: 50,233
Posted By scsmith
We are getting really close. The wings are on,...

We are getting really close. The wings are on, and final body work is being done on the wing-body fairings. There isn't very much left to do, unless we find an issue on initial systems check out...
Forum: Tools 07-27-2022, 01:39 AM
Replies: 13
Views: 1,143
Posted By scsmith
I've had mixed success. A couple of tools that...

I've had mixed success. A couple of tools that would seem like a no brainer turned out to be rather poor. Others, I am quite happy and satisfied with.
Forum: RV-15 07-27-2022, 01:30 AM
Replies: 457
Views: 91,148
Posted By scsmith
Feeling better about this after hearing Rian's...

Feeling better about this after hearing Rian's interview. Slide the seats forward, wheel your bikes in, and built-in wheel wells to hold the bikes upright. Ok, I'm seriously jazzed now!
Forum: RV General Discussion/News 07-25-2022, 08:47 PM
Replies: 94
Views: 50,233
Posted By scsmith
The aluminum stub spars never touch any...

The aluminum stub spars never touch any carbon.

The general technique when aluminum parts have to mate against the composite is to use an insulating layer of fiberglass. But in the case of the...
Forum: RV General Discussion/News 07-25-2022, 07:10 PM
Replies: 23
Views: 5,245
Posted By scsmith
That's 170 gallons in about 3 to 3.5 hrs. Like...

That's 170 gallons in about 3 to 3.5 hrs. Like 50 gph. Must be ROP beer.
Forum: RV General Discussion/News 07-25-2022, 02:46 PM
Replies: 94
Views: 50,233
Posted By scsmith
Right now the plan is to build another set for my...

Right now the plan is to build another set for my second RV-8. I am thinking of making a one-piece carbon center section spar that would fit inside a modified F-804 bulkhead, rather than use the...
Forum: RV-15 07-25-2022, 01:55 PM
Replies: 457
Views: 91,148
Posted By scsmith
I am just a little bit bummed by the cargo door...

I am just a little bit bummed by the cargo door as depicted. I was hoping for a full-size door on one side in the bay immediately behind the pilot access door. Kinda like what you see on many pickup...
Forum: RV General Discussion/News 07-25-2022, 01:48 PM
Replies: 94
Views: 50,233
Posted By scsmith
Yes, I am aware, and in the back of my mind...

Yes, I am aware, and in the back of my mind always concerned. There is 1 degree of washout. And the taper is modest, tip chord is 55% of side-of-body chord. My lifting-surface code says it stalls...
Forum: RV-15 07-25-2022, 11:27 AM
Replies: 4
Views: 1,458
Posted By scsmith
Thanks Doug, GREAT PICTURES! I am so jazzed!

Thanks Doug, GREAT PICTURES!

I am so jazzed!
Forum: RV-15 07-25-2022, 11:01 AM
Replies: 457
Views: 91,148
Posted By scsmith
Oh come on guys!

WELL..........

Its been sitting there at the tent for two hours now, and not a single post or picture? You'all must be so enthralled with it that no one has a moment to post about it!

Come on guys!
Forum: RV Ongoing Maintenance Issues 07-24-2022, 05:34 PM
Replies: 65
Views: 10,833
Posted By scsmith
Yeah, I think the distinction between restraining...

Yeah, I think the distinction between restraining upper or lower might be splitting hairs. But if you already have a good restraint on the bottom (at the horn) then it is pretty fast and cheap to...
Forum: RV Ongoing Maintenance Issues 07-24-2022, 05:18 PM
Replies: 65
Views: 10,833
Posted By scsmith
No doubt the duck tape was added after the damage...

No doubt the duck tape was added after the damage incident to minimize continued flopping around of the rudder.

Really sad. At OSH you don't necessarily have the option of tying down pointed into...
Forum: RV General Discussion/News 07-24-2022, 04:53 PM
Replies: 94
Views: 50,233
Posted By scsmith
A couple more pictures

Here are a couple more pictures of the July progress.

I climbed up on a step ladder to try to get a better view of the wings. The tape stripes running chordwise were used as measurement stations to...
Forum: RV-4 07-24-2022, 04:37 PM
Replies: 27
Views: 4,254
Posted By scsmith
Some comments on our initial data: The two test...

Some comments on our initial data:

The two test runs were really only a bit over an hour apart. The OAT warmed just 1 degree F from the first test series to the second. And the fuel load was the...
Forum: Propellers 07-21-2022, 01:01 PM
Replies: 4
Views: 726
Posted By scsmith
AND... Of that 5% improvement that they mention...

AND...

Of that 5% improvement that they mention between 2700 and 2200, almost all of that occurs between 2700 and 2400. The difference between 2400 and 2200 might be 1% or less (speculating here...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-19-2022, 04:30 PM
Replies: 4
Views: 646
Posted By scsmith
check your PMs

check your PMs
Forum: RV-10 07-17-2022, 11:17 AM
Replies: 20
Views: 1,892
Posted By scsmith
Welcome to the world of composites manufacturing...

Welcome to the world of composites manufacturing -- which is pretty different from fitting and gluing existing composite parts together, filling pin holes, etc.

We have learned over and over that...
Forum: RV-15 07-11-2022, 07:49 AM
Replies: 457
Views: 91,148
Posted By scsmith
At least no one will get the V-shaped trench...

At least no one will get the V-shaped trench carved in their scalp from the open stiffeners on a Cessna trailing edge! I was really amazed how much blood circulates in your scalp.
Forum: RV-15 07-11-2022, 07:40 AM
Replies: 457
Views: 91,148
Posted By scsmith
There are plenty of Skywagons in circulation.

There are plenty of Skywagons in circulation.
Forum: RV-15 07-10-2022, 08:35 PM
Replies: 457
Views: 91,148
Posted By scsmith
Geesh! What more could you want than to look like...

Geesh! What more could you want than to look like a Skywagon? The perfect utility airplane. I can foresee a paint job that looks like Oshkosh Bygosh coveralls and a tool belt full of tools around...
Forum: RV-15 07-10-2022, 03:21 PM
Replies: 457
Views: 91,148
Posted By scsmith
Plus 1

Another one of those times when I wish we had a ďlikeĒ button.

I donít know if they plan to offer a 2+2 or let builders roll their own. But there is certainly room
Forum: RV-15 07-10-2022, 02:51 PM
Replies: 457
Views: 91,148
Posted By scsmith
Canít remember whether lateral or vertical right...

Canít remember whether lateral or vertical right now but yes you get the idea
Forum: RV-15 07-10-2022, 02:36 PM
Replies: 457
Views: 91,148
Posted By scsmith
That canít be right-we were just working on the...

That canít be right-we were just working on the airfoils about then.
Forum: RV-15 07-10-2022, 02:33 PM
Replies: 457
Views: 91,148
Posted By scsmith
Every C-180 I’ve flown has terrible optics in the...

Every C-180 I’ve flown has terrible optics in the curved portion. I haven’t been in a C-170 so not sure of the difference
Forum: RV-15 07-10-2022, 02:31 PM
Replies: 457
Views: 91,148
Posted By scsmith
The engineering of the gear with energy...

The engineering of the gear with energy absorption is pure genius
Forum: RV-15 07-10-2022, 02:28 PM
Replies: 457
Views: 91,148
Posted By scsmith
Unless you can find pilots with big holes in...

Unless you can find pilots with big holes in their head for spar carrythru then struts are unavoidable. The C-177 is hopelessly nose heavy and would never get low stall speed with big flaps. The...
Forum: RV-15 07-10-2022, 02:20 PM
Replies: 457
Views: 91,148
Posted By scsmith
Yes. Need a lot of trim authority with the big...

Yes. Need a lot of trim authority with the big Fowler flaps.
Forum: RV-3 07-01-2022, 05:23 PM
Replies: 35
Views: 3,486
Posted By scsmith
I wonder about introducing some actual damping...

I wonder about introducing some actual damping into this system. For example, if the holes in the aluminum plate were drilled 5/16" and then filled with short rubber bushings made from 5/16"...
Forum: Propellers 06-29-2022, 09:57 AM
Replies: 5
Views: 630
Posted By scsmith
In principle, yes, enough leverage and one should...

In principle, yes, enough leverage and one should be able to turn the blades. With aluminum blades, I would be comfortable doing that. With the light carbon composite blades, uhmmmm, rather not.
Forum: Propellers 06-28-2022, 11:51 PM
Replies: 5
Views: 630
Posted By scsmith
Whirl Wind HRT prop and standard Vans cowl

I recently changed from the Whirl Wind 200RV prop to the Whirl Wind 72HRT prop. I have a standard Vans cowl.

The HRT blades are a fair bit wider, and the folks at Whirl Wind Aviation supplied a...
Forum: RV-10 06-26-2022, 11:30 AM
Replies: 11
Views: 1,359
Posted By scsmith
What is your GAMI spread? it might be that #6 is...

What is your GAMI spread? it might be that #6 is a bit leaner, and a 0.005" increase in injector size on that cylinder could make it very happy. Don Rivera at Airflow Performance is very helpful...
Forum: Alternative Engines 06-20-2022, 07:36 PM
Replies: 68
Views: 10,617
Posted By scsmith
What is the displacement of the Yamaha? The...

What is the displacement of the Yamaha?

The speed reduction gears at the links that DanH posted seem to have large reduction ratios, suggesting the engine is turning at very high RPM.
What is the...
Forum: Fiberglass 06-13-2022, 09:55 PM
Replies: 21
Views: 2,257
Posted By scsmith
We have done layups with 10--15 plies all at...

We have done layups with 10--15 plies all at once. If it gets too soupy with resin, just put down a ply of cloth dry and blot it to pull excess resin up to wet out the new ply. Keep doing this as...
Forum: Fiberglass 06-13-2022, 12:08 PM
Replies: 21
Views: 2,257
Posted By scsmith
You can do it either way: stop, add peel ply,...

You can do it either way:

stop, add peel ply, allow to cure, then scuff sand and continue.

or, just keep laying on more plies. Unless you are going to vacuum bag it, you don't really care that it...
Forum: RV Ongoing Maintenance Issues 06-13-2022, 11:08 AM
Replies: 18
Views: 1,858
Posted By scsmith
Pegasus Auto Racing and Summit both have molded...

Pegasus Auto Racing and Summit both have molded silicone hoses that are perfect for what I need. But they say in the fine print that they are not resistant to oil. I imagine they would be better...
Forum: RV Ongoing Maintenance Issues 06-12-2022, 10:57 PM
Replies: 18
Views: 1,858
Posted By scsmith
That doesn't really help solve the issue of the...

That doesn't really help solve the issue of the 90-degree elbows
Forum: RV Ongoing Maintenance Issues 06-12-2022, 10:00 PM
Replies: 18
Views: 1,858
Posted By scsmith
breather pipe suggestions?

I have an aluminum 5/8" diameter breather pipe running down my firewall, perfectly bent to terminate just above the exhaust pipe, just how I like it.

The engine breather fitting is a 3/4" tube...
Forum: California 06-12-2022, 08:03 PM
Replies: 14
Views: 1,576
Posted By scsmith
Bay coastal stratus is rare, actually

San Carlos and Palo Alto airports are both VFR the vast majority of the time. The amount of morning fog penetration (coastal stratus) varies quite a bit from none to overcast all day, but the days...
Forum: RV General Discussion/News 06-12-2022, 07:06 PM
Replies: 38
Views: 4,256
Posted By scsmith
Hi Ryan, Kyle answered your primary question I...

Hi Ryan,

Kyle answered your primary question I think. The fitting that is supplied in the kit is a combination of a rod bearing and a threaded stud that is attached to the spherical ball - it is...
Forum: RV General Discussion/News 06-11-2022, 07:02 PM
Replies: 38
Views: 4,256
Posted By scsmith
I have forgotten the exact numbers, but I once...

I have forgotten the exact numbers, but I once calculated the airspeed needed for the standard aluminum tube to buckle. It was closer to the max flap speed than I would like. the OP here probably...
Forum: RV General Discussion/News 06-11-2022, 05:14 PM
Replies: 38
Views: 4,256
Posted By scsmith
I agree with Butch, everything sounds OK. You...

I agree with Butch, everything sounds OK. You may benefit in speed by rigging your flaps and ailerons up just a bit more. Are the lower skins of the flaps up tight against the belly of the...
Forum: RV General Discussion/News 06-11-2022, 12:13 PM
Replies: 38
Views: 4,256
Posted By scsmith
Here is a picture of the better way to attach the...

Here is a picture of the better way to attach the flap pushrod to the flap, instead of the integral studded rod bearings that are used in the kit which do not have a positive capture feature:
26914
Forum: RV General Discussion/News 06-11-2022, 11:51 AM
Replies: 38
Views: 4,256
Posted By scsmith
Most of the advise here is on the mark. While...

Most of the advise here is on the mark.

While you have the flap pushrods off, whether they are bent or not, make new ones from 4130 steel tubing. Buy 5/16" tubing and run a 1/4-28 tap into the...
Forum: RV General Discussion/News 06-10-2022, 10:06 PM
Replies: 12
Views: 2,152
Posted By scsmith
I have it on good authority that the Monday...

I have it on good authority that the Monday flyover, in honor of Van's 50th anniversary, will be a 50-ship formation fly-over. Not sure of the timing. So plan to be there Monday early and stay all...
Forum: RV General Discussion/News 06-08-2022, 08:57 PM
Replies: 31
Views: 3,390
Posted By scsmith
But there has been some change to the...

But there has been some change to the nomenclature, right? I think they used to say that after a major mod, you were to notify the FSDO and go back into "Phase I" for a specified test period.
Now...
Forum: RV General Discussion/News 06-08-2022, 05:46 AM
Replies: 33
Views: 11,523
Posted By scsmith
Actually racing is one place where you don't need...

Actually racing is one place where you don't need any extra spark advance. You will be running best power mixture (AFR=12.5:1) or even richer to manage temps. Keeping the timing in the 20--25 BTDC...
Forum: Traditional Aircraft Engines 06-06-2022, 07:47 PM
Replies: 33
Views: 2,379
Posted By scsmith
Thanks. So I gather that Michael (Toobuilder) is...

Thanks. So I gather that Michael (Toobuilder) is suggesting that the plunger and spring be installed. If I understand its function, it forces oil through the cooler always, unless the oil pressure...
Forum: Traditional Aircraft Engines 06-06-2022, 01:42 PM
Replies: 33
Views: 2,379
Posted By scsmith
Michael, could you elaborate a little on what the...

Michael, could you elaborate a little on what the viscosity valve is and where it goes? A search on Aircraft Spruce turned up nothing.

I've never heard of this, and probably many others haven't...
Forum: Oregon 06-03-2022, 10:19 AM
Replies: 3
Views: 617
Posted By scsmith
Bruce, my hangar at Ashland is empty right now,...

Bruce, my hangar at Ashland is empty right now, you are welcome to it. It will be a couple more weeks before I am ready to move my RV-8 back in.

jlp-scs@pacbell.net
Forum: RV General Discussion/News 05-30-2022, 11:35 AM
Replies: 8
Views: 822
Posted By scsmith
wow, pricey. Doesn't our very own Steve Melton...

wow, pricey.

Doesn't our very own Steve Melton make one?
Forum: RV General Discussion/News 05-29-2022, 07:35 PM
Replies: 25
Views: 4,880
Posted By scsmith
This made me laugh. To change the alternator...

This made me laugh. To change the alternator belt, you have to pull the prop - not something that would normally be done on a condition inspection, and not something that one would typically...
Forum: RV-8/8A 05-27-2022, 06:29 PM
Replies: 30
Views: 5,259
Posted By scsmith
OMG! This is really bad. This is surely your...

OMG! This is really bad. This is surely your problem. You guys are lucky the plane was safe to fly. The flow leaking through a narrow gap along the wing root not only puts really dirty air onto...
Forum: Engine Monitors 05-22-2022, 11:58 PM
Replies: 6
Views: 615
Posted By scsmith
I've worked around thermocouples in aero research...

I've worked around thermocouples in aero research my whole career, and I never saw an occasion where a TC would fail high. But the JPI engine monitor on our C-182B had a bad EGT probe last year and...
Forum: Primers 05-12-2022, 07:44 PM
Replies: 32
Views: 15,629
Posted By scsmith
One must appreciate the irony here. You want to...

One must appreciate the irony here. You want to use Stewart Systems because it is so environmentally friendly, yet you are contemplating prep with one of the most toxic and harmful substances on...
Forum: Traditional Aircraft Engines 05-12-2022, 07:22 PM
Replies: 4
Views: 703
Posted By scsmith
Among those to check: 1) ignition timing. ...

Among those to check:

1) ignition timing. Retarding the ignition just a little will drop CHT, and hardly affect power at all.

2) leaky baffles. People swear up and down their baffles are tight,...
Forum: RV-15 05-09-2022, 10:09 AM
Replies: 40
Views: 22,024
Posted By scsmith
Something with a lot of shear!

Something with a lot of shear!
Forum: RV General Discussion/News 04-29-2022, 11:44 PM
Replies: 19
Views: 2,963
Posted By scsmith
As far as I know, Vans does not supply any parts...

As far as I know, Vans does not supply any parts that are red-anodized
Forum: RV General Discussion/News 04-29-2022, 07:45 PM
Replies: 94
Views: 50,233
Posted By scsmith
Thanks everyone for contributing the various...

Thanks everyone for contributing the various specs.

In the sailplane world we use a waviness gauge that is colloquially known as a Johnson Gauge, named after Richard Johnson.

It consists of a disc...
Showing results 1 to 64 of 500

 
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