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Search: Posts Made By: scsmith
Forum: Propellers 12-10-2018, 06:00 PM
Replies: 4
Views: 197
Posted By scsmith
you could also call Craig Catto at...

you could also call Craig Catto at Westover/Jackson.
Forum: Safety 12-09-2018, 10:29 PM
Replies: 24
Views: 1,728
Posted By scsmith
Wow, Carl, thanks for posting that. I use Skew-T...

Wow, Carl, thanks for posting that. I use Skew-T all the time, but there is way more here in the fine print than I knew.

Thanks
Forum: RV General Discussion/News 12-09-2018, 12:28 AM
Replies: 82
Views: 23,897
Posted By scsmith
I have asked Darwin to make a swept steering arm....

I have asked Darwin to make a swept steering arm. I went so far as to design the perfect sweep angle and length for him so that the steering angle is symmetrical left and right and very slightly...
Forum: RV-8/8A 12-08-2018, 04:41 AM
Replies: 3
Views: 415
Posted By scsmith
I think the only riveting of fairings that would...

I think the only riveting of fairings that would be inhibited by installing the floor is the flap fairing. It is a somewhat complicated shaped part, and you will no doubt do some head scratching to...
Forum: RV General Discussion/News 12-08-2018, 04:06 AM
Replies: 27
Views: 1,710
Posted By scsmith
To the second point, yes of course you are right,...

To the second point, yes of course you are right, the incidence has nothing to do with being on the back side of the power curve. I think the comment was intended to convey a subjective stick...
Forum: RV General Discussion/News 12-07-2018, 04:53 PM
Replies: 27
Views: 1,710
Posted By scsmith
Scott: Please don't confuse basic static...

Scott: Please don't confuse basic static stability (stick fixed) with stick-free stability AKA stick-force gradient.

It is true that changing the decalage will not change the static...
Forum: RV-10 12-07-2018, 01:13 PM
Replies: 10
Views: 991
Posted By scsmith
Just two screws does not carry bending moment...

Just two screws does not carry bending moment into the plate, bypassing the bulkhead with the oval hole. Use four machine screws with locknuts.

But yes, steel screws can carry a lot more in shear...
Forum: RV-10 12-07-2018, 12:41 PM
Replies: 10
Views: 991
Posted By scsmith
Thats not really that bad an idea. Mooneys and...

Thats not really that bad an idea. Mooneys and Pipers have gotten by with one door for years!
Forum: RV General Discussion/News 12-06-2018, 09:08 PM
Replies: 27
Views: 1,710
Posted By scsmith
The net downforce of the stabilizer-elevator...

The net downforce of the stabilizer-elevator combination is dictated by c.g. location as the right downforce to trim in level flight.

If you have some elevator deflection to trim in level flight, it...
Forum: RV General Discussion/News 12-05-2018, 07:52 PM
Replies: 27
Views: 1,710
Posted By scsmith
This is correct, you won't change the trimmed...

This is correct, you won't change the trimmed induced drag. You will see a very small change in the profile drag, and some reduction in pressure drag from the horns sticking up. These are going to...
Forum: RV-8/8A 12-03-2018, 11:06 PM
Replies: 35
Views: 3,936
Posted By scsmith
There does not appear to be a provision in the...

There does not appear to be a provision in the housing for routing the plugs and wiring through the housing. Are we supposed to drill holes in the housing?
Forum: Safety 12-03-2018, 10:29 PM
Replies: 25
Views: 3,276
Posted By scsmith
Wow, 270 in the back seat of an 8? Or did you...

Wow, 270 in the back seat of an 8? Or did you mean you were in the back?

I'm at the factory-recommended aft limit with 230 in the back. But my personal limit is 200. It is a different beast with...
Forum: RV General Discussion/News 11-30-2018, 08:06 PM
Replies: 17
Views: 1,223
Posted By scsmith
Wow! These are remarkable numbers for a...

Wow! These are remarkable numbers for a room-temp cure epoxy. Prior to this, I considered MGS the gold standard, and Jeffco a close second, at half the price. I am testing a high T-g hardener from...
Forum: RV General Discussion/News 11-29-2018, 12:41 PM
Replies: 15
Views: 1,876
Posted By scsmith
Aircraft Extras flap positioning system

I have the Aircraft Extras system in my airplane and I really like it. The shape of the switch is up to you.
Forum: VAF Classifieds (posts in here deleted after 30 days) 11-25-2018, 03:51 PM
Replies: 5
Views: 448
Posted By scsmith
Wouldn't that be nice? Adjustable seat height in...

Wouldn't that be nice? Adjustable seat height in a 1959 airplane? It does have a tilt adjustment, but doesn't change the height much.
Forum: VAF Classifieds (posts in here deleted after 30 days) 11-25-2018, 03:48 PM
Replies: 5
Views: 448
Posted By scsmith
Thanks Tom, I replied to your PM.

Thanks Tom,

I replied to your PM.
Forum: VAF Classifieds (posts in here deleted after 30 days) 11-24-2018, 10:08 PM
Replies: 5
Views: 448
Posted By scsmith
WTB Lightspeed Zulu headset (or trade)

I have Bose X headsets in the RV-8, and I am happy with them. But now that I am also flying our Cessna 182B towplane, I find that the high point in the middle of the headband frame hits the...
Forum: RV-8/8A 11-18-2018, 02:55 AM
Replies: 14
Views: 1,750
Posted By scsmith
servos

I don't know about the Garmin roll servo, perhaps someone will chime in that does. But my Trutrak roll servo mounts in the fuselage. That makes life pretty simple.

Things you will have to get...
Forum: RV-6/6A 11-15-2018, 12:27 PM
Replies: 17
Views: 2,059
Posted By scsmith
I would like to see if I can add some clarity...

I would like to see if I can add some clarity here for the OP and others.

First point, for the OP:
You are correct that it is not necessary to worry about "edge clearance" to the inside of the part,...
Forum: Tools 11-08-2018, 06:08 PM
Replies: 20
Views: 1,582
Posted By scsmith
Turn around and run. Run very fast. The only...

Turn around and run. Run very fast.

The only tool worse than a Grizzly tool is a Harbor Freight tool. Or is it Harbor Fright?

I bought a 14" Delta about 4 years ago. It was a new design and model...
Forum: RV General Discussion/News 11-07-2018, 02:16 PM
Replies: 13
Views: 863
Posted By scsmith
+1 for a box truck. Although I found that the...

+1 for a box truck. Although I found that the Penske trucks had much harder suspension. I think maybe the ones with round wheels were extra.

Uhaul truck rode smoother. Still a lot more dynamics...
Forum: RV-10 11-06-2018, 03:04 PM
Replies: 22
Views: 4,665
Posted By scsmith
Do annuals cost a lot because of the retracts?

Do annuals cost a lot because of the retracts?
Forum: RV General Discussion/News 11-05-2018, 10:49 PM
Replies: 15
Views: 2,064
Posted By scsmith
Funny -- when you said, "Beaver, Otter, Cub" I...

Funny -- when you said, "Beaver, Otter, Cub" I just knew immediately that you went through NAVY TPS at PAX.

My good friend Bill Shoemaker ("Doc") had a similar NAVY career, instructed in T-45, flew...
Forum: RV-10 11-05-2018, 08:00 PM
Replies: 22
Views: 4,665
Posted By scsmith
The right seat in the Piper does not have...

The right seat in the Piper does not have brakes?

Is that a GX60 GPS? I just bought an old 1959 C-182 that has one of those, so I guess I need to learn how to use it.

Camanches are really nice...
Forum: Traditional Aircraft Engines 11-05-2018, 07:46 PM
Replies: 34
Views: 5,427
Posted By scsmith
Yuck! E-yew! I didn't know there was liquid in...

Yuck! E-yew!

I didn't know there was liquid in them. I suppose its like a spinal disc -- kind of like a jelly doughnut.

Supposedly the aerobatic mounts are a little stiffer, as others have...
Forum: RV-14 11-05-2018, 06:27 PM
Replies: 20
Views: 2,767
Posted By scsmith
To the OP's original question, there is one...

To the OP's original question, there is one aspect of installing Pmags that the FAA does actually care about. You will get a 40 hr phase I test period rather than a 25 hr phase I test period. ...
Forum: RV Ongoing Maintenance Issues 11-05-2018, 03:36 PM
Replies: 19
Views: 1,830
Posted By scsmith
I replaced all my hoses at 6 years. I think...

I replaced all my hoses at 6 years. I think Cessna and Piper service manuals say 5 years.

I replaced my hoses with teflon-lined hoses from TS Flightlines. I think those are not life limited. Plan...
Forum: Propellers 11-04-2018, 02:05 PM
Replies: 28
Views: 3,168
Posted By scsmith
You are really balancing the engine/prop system,...

You are really balancing the engine/prop system, with all its attachments. At least in my case, the balance weights (bolt and washers) were attached to the ring gear.

I did have a friend with a...
Forum: Propellers 11-03-2018, 10:12 PM
Replies: 28
Views: 3,168
Posted By scsmith
no one should say 'no' to a prop balance

My Whirl Wind 200RV prop was initially about 0.35 ips....much better than average for a C/S prop. When Kregg Victory was done ( I think he used Dynavibe, but I forget) it was less then 0.015 ips. ...
Forum: RV General Discussion/News 11-01-2018, 02:45 AM
Replies: 9
Views: 880
Posted By scsmith
I wonder about the long-term durability of...

I wonder about the long-term durability of bridging the pin holes rather than filling them up. Thermal stresses or internal pressure from moisture/pressure changes might eventually cause the bridge...
Forum: RV General Discussion/News 10-31-2018, 08:03 PM
Replies: 8
Views: 813
Posted By scsmith
Yes, you just want to torque it enough to keep...

Yes, you just want to torque it enough to keep the taper seated. I tapped my taper pins in with a plastic-headed mallet on the head end, fairly hard to be sure the taper was seated, and then...
Forum: RV General Discussion/News 10-28-2018, 07:40 PM
Replies: 13
Views: 2,018
Posted By scsmith
Yeah. But SINCE 1975, I don't think Cessna has...

Yeah. But SINCE 1975, I don't think Cessna has built 10,000.
1975 is about when Van got started. So I think Van is beating the field now.
Forum: RV-8/8A 10-28-2018, 12:55 PM
Replies: 4
Views: 753
Posted By scsmith
Thats for one flap.

Thats for one flap.
Forum: RV General Discussion/News 10-28-2018, 12:53 PM
Replies: 3
Views: 768
Posted By scsmith
I have 380 x 150 - 5 tires on my RV-8. On grass...

I have 380 x 150 - 5 tires on my RV-8. On grass strips, gravel, even packed sandy surfaces like at my gliderport, the larger tires are great, a really noticeable improvement.

I would not say,...
Forum: Midwest 10-26-2018, 12:25 PM
Replies: 24
Views: 2,178
Posted By scsmith
Actually Pete, that's pretty good. It reflects...

Actually Pete, that's pretty good. It reflects the complexity and attention to detail that the homebuilder faces, and shows that while we think of ALMOST everything, we miss something once in a...
Forum: Midwest 10-25-2018, 10:55 PM
Replies: 24
Views: 2,178
Posted By scsmith
Dare I ask why Pete's right wing root fairing is...

Dare I ask why Pete's right wing root fairing is not painted, on an otherwise really nice looking airplane?

At the risk of some thread drift, I confess I have a couple of unpainted bits on my...
Forum: Midwest 10-25-2018, 12:30 AM
Replies: 24
Views: 2,178
Posted By scsmith
Aren't you supposed to be hauling puppies around?...

Aren't you supposed to be hauling puppies around?

Moving beer across state lines.....hmmmm.

The headline reminded me of a hash club. So now, you are a drinking club with a flying problem?
Forum: RV-8/8A 10-24-2018, 03:02 PM
Replies: 49
Views: 5,362
Posted By scsmith
Darwin, I would be delighted to work with you on...

Darwin, I would be delighted to work with you on a modified steering arm geometry, and an accompanying longer link.
Forum: RV-8/8A 10-24-2018, 02:59 PM
Replies: 49
Views: 5,362
Posted By scsmith
It would not be difficult to cut one out of...

It would not be difficult to cut one out of normalized 4130 sheet. But it would require taking it somewhere for heat treat to make the latching notch durable.

I suppose I could cut one out of...
Forum: RV-8/8A 10-23-2018, 06:20 PM
Replies: 49
Views: 5,362
Posted By scsmith
I had exactly the same experience trying to...

I had exactly the same experience trying to discuss it with him.

I would say no, it does not feel as quick and positive as the Rocket Link, but that may be because I set mine with just a little...
Forum: RV-10 10-23-2018, 02:53 PM
Replies: 47
Views: 3,850
Posted By scsmith
I think that is true when ROP, but my observation...

I think that is true when ROP, but my observation of the Bendix servo behavior when LOP is that it does not change fuel flow to match changes in MP in a way that keeps mixture even approximately...
Forum: RV-8/8A 10-23-2018, 02:44 PM
Replies: 49
Views: 5,362
Posted By scsmith
Beware of asymmetry in castor release point

Bruce Eicher linked to the thread I posted where I found out the hard way (although not as hard as it could have been) that with the rocket link, there is an asymmetry in the geometry that causes the...
Forum: RV-10 10-22-2018, 10:35 PM
Replies: 47
Views: 3,850
Posted By scsmith
This question seems to have gotten forgotten as...

This question seems to have gotten forgotten as the thread moved along. I think what happens is that there is some conduction heating of the intake tubes from the cylinders that heats the intake...
Forum: RV-10 10-21-2018, 11:53 PM
Replies: 47
Views: 3,850
Posted By scsmith
Ah, yes, I see. My bad. When you look at...

Ah, yes, I see. My bad. When you look at "today's posts" it doesn't jump out at you which sub-forum it was posted under. I should have looked.

So your numbers look like they are in the ball...
Forum: Traditional Aircraft Engines 10-21-2018, 08:47 PM
Replies: 3
Views: 870
Posted By scsmith
My impression from my limited dealings with them,...

My impression from my limited dealings with them, and word of mouth from friends, all when I used to live in that neck of the woods, was that they were quite good, very thorough, but pretty darn...
Forum: RV-7/7A 10-21-2018, 08:42 PM
Replies: 14
Views: 1,849
Posted By scsmith
Mel, you may well be exactly right here. On...

Mel, you may well be exactly right here. On low-aspect ratio wings, and wings with rectangular planform (we have both!) Hoerner tips are quite good. The primary benefit of the sheared tip is that...
Forum: RV-10 10-21-2018, 08:27 PM
Replies: 47
Views: 3,850
Posted By scsmith
What engine do you have?

The fuel flow and power numbers depend on which engine you have, but no, I don't think your numbers sound right. In particular, your fuel flow is way too high to be LOP unless you have a bigger than...
Forum: RV Ongoing Maintenance Issues 10-21-2018, 01:04 PM
Replies: 15
Views: 3,132
Posted By scsmith
You got me!

When I first started reading the post, I thought, "Wait! What? How can it be that the Val could only have 500 hrs on it after all these years? Granted Paul divides his time among several other...
Forum: California 10-18-2018, 12:02 PM
Replies: 6
Views: 722
Posted By scsmith
Attitude Aviation in Livermore

Attitude Aviation in Livermore
Forum: RV General Discussion/News 10-18-2018, 12:50 AM
Replies: 15
Views: 1,080
Posted By scsmith
PLUS 1 Until last year, I had agreed with Carl....

PLUS 1

Until last year, I had agreed with Carl. But then I tried the sleeves. Fantastic. High confidence in a solid joint, fast, easy, no muss, no fuss. I'm a convert.
Forum: RV General Discussion/News 10-15-2018, 10:19 PM
Replies: 15
Views: 1,348
Posted By scsmith
Just to clarify in case that was confusing for...

Just to clarify in case that was confusing for some, the torque is the hanging weight times the length of the wrench to the point where the string is tied plus the weight of the wrench itself times...
Forum: RV General Discussion/News 10-15-2018, 01:50 AM
Replies: 15
Views: 1,348
Posted By scsmith
Yes, that should do nicely. Make sure the...

Yes, that should do nicely. Make sure the pointer is on zero when unloaded, and make sure you apply pressure exactly at the intended spot. Most flex-beam torque wrenches have a handle that is free...
Forum: RV General Discussion/News 10-14-2018, 06:31 PM
Replies: 15
Views: 1,348
Posted By scsmith
I agree with Scott, with the fine tuning that you...

I agree with Scott, with the fine tuning that you would like to know the torque required while turning, not to just get it to start. That much I kind of agree with what Aluminum said. ...
Forum: Traditional Aircraft Engines 10-13-2018, 05:19 PM
Replies: 28
Views: 4,869
Posted By scsmith
I agree. Although your description doesn't...

I agree. Although your description doesn't specifically address wrist pin scuffing. But it is easy to imagine little bits of stuff getting lodged in the pocket at the wrist pin ends and scuffing...
Forum: Traditional Aircraft Engines 10-13-2018, 02:06 PM
Replies: 28
Views: 4,869
Posted By scsmith
Part of the original question....

scoring.

I have a question about wrist-pin scoring on cylinder walls. Can a small amount of light scoring from wrist pins be expected and normal? Or is it always a sign of an issue?
Forum: Traditional Aircraft Engines 10-12-2018, 10:17 PM
Replies: 28
Views: 4,869
Posted By scsmith
16 gph at 75% power? I don't think so.

16 gph at 75% power? I don't think so.
Forum: RV General Discussion/News 10-12-2018, 10:14 PM
Replies: 4
Views: 464
Posted By scsmith
OK, the RV-9A at Siskiyou....Dale Bush is the...

OK, the RV-9A at Siskiyou....Dale Bush is the owner. He will be at the airport on Saturday at noon, showing the RV-7 to a prospective buyer. He is happy to let you look at the RV-9A. You could...
Forum: Electrical Systems 10-12-2018, 07:22 PM
Replies: 10
Views: 1,043
Posted By scsmith
Wouldn't be easier and safer to install an inline...

Wouldn't be easier and safer to install an inline fuse holder?
Forum: RV General Discussion/News 10-12-2018, 07:19 PM
Replies: 4
Views: 464
Posted By scsmith
There is an RV-9A at Siskiyou Co. Airport, 45 s....

There is an RV-9A at Siskiyou Co. Airport, 45 s. mi. west of Klamath Falls, although it is quite a bit longer drive - no roads go direct. Google Maps says it is 82 road miles via US-97, county rd...
Forum: Traditional Aircraft Engines 10-07-2018, 10:01 PM
Replies: 28
Views: 4,869
Posted By scsmith
cooling baffles!

While you are puzzling over the engine, I think you should focus some attention on why your cylinders got so hot. I immediately suspect you have baffle leaks that you are not aware of. Have you...
Forum: RV General Discussion/News 10-03-2018, 11:44 PM
Replies: 27
Views: 3,413
Posted By scsmith
the article referenced by the home-page story...

the article referenced by the home-page story says, "In class E airspace, IFR traffic is controlled by ATC."

This begs the question, and forgive me, I'm not IFR rated -- but isn't IFR traffic ALWAYS...
Forum: RV General Discussion/News 10-03-2018, 11:15 PM
Replies: 27
Views: 3,413
Posted By scsmith
Not marked as a MOA on the Sectional. That is an...

Not marked as a MOA on the Sectional.

That is an odd thing indeed. Exactly 1 nm wide, and 25 nm long.

Maybe it is a designated Phase I test area for E-AB? I'm joking!!!!

The practical...
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