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Search: Posts Made By: DanH
Forum: RV-10 Yesterday, 05:29 PM
Replies: 41
Views: 8,967
Posted By DanH
The question is can you do it for a half hour, or...

The question is can you do it for a half hour, or an hour? See, there is a popular procedure called the Ripon approach, complete with lake holding...



Sure. What does this one do better than a...
Forum: RV General Discussion/News Yesterday, 04:39 PM
Replies: 17
Views: 514
Posted By DanH
Tom, want to conduct a little post-mortem after...

Tom, want to conduct a little post-mortem after replacement? Chris, still have your old pump?

Remove the bottom cover, and see if the chamber marked "IN" has oil in...
Forum: RV-10 Yesterday, 10:38 AM
Replies: 41
Views: 8,967
Posted By DanH
Carl, what is the typical mission climb...speed,...

Carl, what is the typical mission climb...speed, mixture, power setting, and resulting temperatures?

What temperatures in an extended hot day WOT climb at 2700?

Can it fly at at 90 knots...
Forum: RV General Discussion/News 08-15-2018, 07:09 PM
Replies: 17
Views: 514
Posted By DanH
The "why" is the fun part. I suspect what we...

The "why" is the fun part.

I suspect what we have here is a plugged pulsator diaphragm air passage. I'll put some photos together and explain.
Forum: RV-10 08-15-2018, 12:50 PM
Replies: 41
Views: 8,967
Posted By DanH
A plenum lid is just a sealing device. The...

A plenum lid is just a sealing device. The flight regime matters not at all; better sealing is always beneficial, regardless of how it is accomplished.

That said, better conversation of available...
Forum: RV-10 08-15-2018, 12:08 PM
Replies: 41
Views: 8,967
Posted By DanH
Ashley, Cheap mamometer is single channel, from...

Ashley,
Cheap mamometer is single channel, from eBay, about $35. Send an email and I'll send a white paper.

I don't remember how close the prop gets on mine.
Forum: RV-10 08-15-2018, 12:02 PM
Replies: 41
Views: 8,967
Posted By DanH
Ashley, you have air conditioning and a front...

Ashley, you have air conditioning and a front governor? If I were you, I would take a real hard look at the Acclaim and TTx. Then I would think about how I might add glass structure inside the...
Forum: RV General Discussion/News 08-15-2018, 06:31 AM
Replies: 17
Views: 514
Posted By DanH
A reasonable deduction. I have heard other...

A reasonable deduction. I have heard other reports of increased pressure with the low pressure pump. The previous principles of operation are factual, but I won't discount the possibility of some...
Forum: RV-10 08-15-2018, 06:11 AM
Replies: 41
Views: 8,967
Posted By DanH
Sounds familiar. ...

Sounds familiar.

https://www.danhorton.net/VAF/Carbon%20Plenum%20Install/Inlet%20Prelim2.jpg

https://www.danhorton.net/VAF/Carbon%20Plenum%20Install/PA050003.JPG



There is no "perfect" size;...
Forum: RV General Discussion/News 08-14-2018, 04:33 PM
Replies: 17
Views: 514
Posted By DanH
Tom, your carb cannot cause an increase in fuel...

Tom, your carb cannot cause an increase in fuel pressure.

Nor can flow restriction raise fuel pressure. Cleaning the inlet screen is never a bad idea, but a plugged screen would have nothing to do...
Forum: RV-10 08-14-2018, 05:03 AM
Replies: 41
Views: 8,967
Posted By DanH
Jan, you make beautiful parts. Why not go back...

Jan, you make beautiful parts. Why not go back to the drawing board and design a plenum lid incorporating truly sealed inlets and dipstick access? This one can't be any better than flap seals. ...
Forum: VAF Classifieds (posts in here deleted after 30 days) 08-13-2018, 11:05 AM
Replies: 6
Views: 2,869
Posted By DanH
Ok, gang, now back from a weekend commitment. ...

Ok, gang, now back from a weekend commitment. All those who wanted to come look, set a day and let's get 'er done.

Spoke with Allen today, and he is feeling a little better. Chemo is a...
Forum: Traditional Aircraft Engines 08-13-2018, 08:15 AM
Replies: 15
Views: 1,482
Posted By DanH
A plenum lid is merely a sealing device. The...

A plenum lid is merely a sealing device. The primary reason to use a plenum lid is to make sealing near perfect, which guarantees all cooling air mass flow passes between hot parts. Any cooling...
Forum: Fiberglass 08-13-2018, 07:14 AM
Replies: 1
Views: 257
Posted By DanH
Just order from...

Just order from Vans...

https://www.vansaircraft.com/cgi-bin/store.cgi?ident=1534165701-14-204&browse=engines&product=cowl_protector

....and place a strip of fiberfrax under it so it shadows the...
Forum: RV General Discussion/News 08-13-2018, 07:01 AM
Replies: 17
Views: 1,357
Posted By DanH
Yes, we had a land lease tenant with two...

Yes, we had a land lease tenant with two privately owned hangars. He dismantled one and hauled it away. The other is now city property and leased to the CAP.
Forum: RV-10 08-10-2018, 07:12 AM
Replies: 18
Views: 1,451
Posted By DanH
8 to 30. Is it hooked to a 5V instrument power...

8 to 30. Is it hooked to a 5V instrument power source?

https://buy-ei.com/wp-content/uploads/2018/03/FT-60-Info-Rev-F.pdf
Forum: RV Building Tips/Techniques 08-10-2018, 06:47 AM
Replies: 13
Views: 609
Posted By DanH
MEK use was not a common factor in fuel tank...

MEK use was not a common factor in fuel tank paint blisters. I very much doubt MEK on a cleanup rag is a factor in leaks.
Forum: RV General Discussion/News 08-10-2018, 06:37 AM
Replies: 78
Views: 7,905
Posted By DanH
I love it when you talk dirty ;)

I love it when you talk dirty ;)
Forum: RV General Discussion/News 08-09-2018, 10:29 AM
Replies: 10
Views: 584
Posted By DanH
Whatever works...micro, flox, or plain epoxy. ...

Whatever works...micro, flox, or plain epoxy. For the tiny gap you're describing, I'd thicken mixed epoxy with cabosil so it won't run. Remember, cabosil makes epoxy thixotropic, a gel of sorts; it...
Forum: RV General Discussion/News 08-09-2018, 09:39 AM
Replies: 18
Views: 1,103
Posted By DanH
Good article for sure.

Good article for sure.
Forum: Fuel Injection Systems 08-09-2018, 08:08 AM
Replies: 16
Views: 850
Posted By DanH
My FM200 is closed loop. I have a large meat...

My FM200 is closed loop. I have a large meat servo with its own CPU (apparently running DOS) monitoring exhaust temperature, with additional aural and tactile inputs.

Seriously, both Bendix style...
Forum: Fuel Injection Systems 08-08-2018, 09:41 PM
Replies: 16
Views: 850
Posted By DanH
"Constant flow" is precisely correct for Bendix...

"Constant flow" is precisely correct for Bendix style and Continental type systems; the nozzle squirts a constant stream of fuel (mixed with a small volume of air) into each intake port. The SDS and...
Forum: VAF Classifieds (posts in here deleted after 30 days) 08-08-2018, 03:34 PM
Replies: 6
Views: 2,869
Posted By DanH
Gang, Wings.....everything is now together in...

Gang,

Wings.....everything is now together in the hangar at at 08A. Tips are the batwing style, installed with piano hinge for fast access.

...
Forum: RV-14 08-08-2018, 08:18 AM
Replies: 3
Views: 527
Posted By DanH
Forgot two... The standard 390 has no propeller...

Forgot two...

The standard 390 has no propeller restrictions of which I'm aware. Given a compression increase, you're on your own.

Future fuel remains a wildcard.
Forum: RV-14 08-08-2018, 06:46 AM
Replies: 3
Views: 527
Posted By DanH
Ok, a few notes... The philosophy underlying 390...

Ok, a few notes...

The philosophy underlying 390 development was to use cubic inches rather than significantly increased compression to deliver an honest 200+ HP from an angle valve four.

Note...
Forum: VAF Classifieds (posts in here deleted after 30 days) 08-06-2018, 04:25 PM
Replies: 6
Views: 2,869
Posted By DanH
Here is the equipment list, from Allen's...

Here is the equipment list, from Allen's records:

https://www.danhorton.net/Allen%20Fulmer%20RV-7/Equipment%20List.pdf
Forum: RV General Discussion/News 08-05-2018, 07:35 AM
Replies: 61
Views: 5,350
Posted By DanH
I also fill at home. Remember, compressed oxygen...

I also fill at home.

Remember, compressed oxygen can injure the careless. No lubricant. Keep everything clean. Open and close valves slowly, and use a slow fill rate.
Forum: VAF Classifieds (posts in here deleted after 30 days) 08-04-2018, 07:08 PM
Replies: 6
Views: 2,869
Posted By DanH
RV-7 Project Near Completion

Friend, local pilot, and VAF member Allen Fulmer (http://www.vansairforce.com/community/member.php?u=499) has asked me to sell his project, as he is faced with a serious medical problem.

It's an...
Forum: RV General Discussion/News 08-04-2018, 04:23 PM
Replies: 25
Views: 2,721
Posted By DanH
You keep talking like that and someone may show...

You keep talking like that and someone may show you the state line ;)
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 08-04-2018, 04:18 PM
Replies: 5
Views: 854
Posted By DanH
Actually, it is the very first pancake breakfast...

Actually, it is the very first pancake breakfast for Chapter 822. Had a good turnout of locals, and some fly-in guests, despite it being a bit low early on. Watch for future calendar entries!
Forum: RV General Discussion/News 08-04-2018, 11:24 AM
Replies: 8
Views: 394
Posted By DanH
A timing error of a degree or two makes no...

A timing error of a degree or two makes no practical difference with a Lycoming, although it might be worthwhile to check the TDC mark once, early in ownership. To do it, all you need is a piston...
Forum: RV General Discussion/News 08-04-2018, 06:54 AM
Replies: 5
Views: 383
Posted By DanH
Good if filterless, but the concept constrains...

Good if filterless, but the concept constrains filter size, and cone filters are small on pleat area anyway. The result is filter loss.

Built this one early on. At 390 air volume, pressure drop...
Forum: RV General Discussion/News 08-03-2018, 08:53 PM
Replies: 8
Views: 394
Posted By DanH
Back side of your ring gear has a full set of...

Back side of your ring gear has a full set of timings marks, yes? Case centerline is the reference.
Forum: Traditional Aircraft Engines 08-03-2018, 08:21 AM
Replies: 47
Views: 3,835
Posted By DanH
Did the Conti folks say why, or what was switched...

Did the Conti folks say why, or what was switched to what?

As for SI 1070Z, I don't think the additive requirement is specific to unleaded fuel. It's required with 100LL (see SI1409C) and auto fuel...
Forum: Traditional Aircraft Engines 08-03-2018, 08:08 AM
Replies: 47
Views: 3,835
Posted By DanH
Same for Aeroshell multi. Way back in 1986, my...

Same for Aeroshell multi.



Way back in 1986, my roadracing Honda would strip the hardfacing off the highly loaded cam followers in a single weekend. Switching to a half synthetic oil ended the...
Forum: RV-14 08-01-2018, 11:16 AM
Replies: 55
Views: 11,829
Posted By DanH
Mike, Straight to 35. Just happened to be the...

Mike,
Straight to 35. Just happened to be the max on a non-optimized map#2. Flying at 16.5K, so MP was very low.
I gotta get a laptop I can use in an RV8 cockpit so I can make incremental changes....
Forum: Traditional Aircraft Engines 08-01-2018, 11:05 AM
Replies: 47
Views: 3,835
Posted By DanH
Which Aeroshell, and why is gold coloration bad? ...

Which Aeroshell, and why is gold coloration bad? Any component damage or excess wear?
Forum: Traditional Aircraft Engines 08-01-2018, 06:53 AM
Replies: 34
Views: 3,419
Posted By DanH
"Stable" being the key. Reference please. I...

"Stable" being the key.



Reference please. I would place best power mixture somewhat further ROP than 30, although yes, in detonation surveys (all parameters quite hot), max power is usually just...
Forum: RV-12 08-01-2018, 05:58 AM
Replies: 38
Views: 4,381
Posted By DanH
Still do.....

Still do.....
Forum: RV-14 07-31-2018, 07:29 PM
Replies: 55
Views: 11,829
Posted By DanH
Yes. It's the baseline Monty established in...

Yes. It's the baseline Monty established in early 390 development as the best all-around, fixed timing. Lycoming picked 20 later.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 07-31-2018, 04:43 PM
Replies: 5
Views: 854
Posted By DanH
Pancakes!

https://www.danhorton.net/VAF/Pancakes/Pancakes.JPG

Wetumpka Airport (08A)
Forum: RV-14 07-31-2018, 04:01 PM
Replies: 55
Views: 11,829
Posted By DanH
That aligns with dyno sources. If it helps,...

That aligns with dyno sources.



If it helps, other than short experiments, I've been at 23 since the first dyno run.



I was out at 35 BTDC, at 16.5K and 30 LOP for a bit last week. Not...
Forum: Safety 07-31-2018, 03:08 PM
Replies: 87
Views: 7,632
Posted By DanH
Because it's Oshkosh. The air around...

Because it's Oshkosh. The air around Airventure will always (hopefully) be full of flying things not graced with a wad of avionics. As such, ATC can't depend on it for separation, nor can the...
Forum: Safety 07-31-2018, 11:39 AM
Replies: 87
Views: 7,632
Posted By DanH
Human nature says if you stretch out the line,...

Human nature says if you stretch out the line, you'll just get more folks jumping the line. They already cut in everywhere from Ripon to the 27 base leg.



We already have a safety problem with the...
Forum: Traditional Aircraft Engines 07-31-2018, 09:54 AM
Replies: 47
Views: 3,835
Posted By DanH
FWIW...... Back on 12-18-12 I cut three sections...

FWIW......

Back on 12-18-12 I cut three sections of ordinary mild steel strap from the same piece, bead blasted them nice and clean, and drilled a hole in each.

The first was dipped in Aeroshell...
Forum: Traditional Aircraft Engines 07-31-2018, 07:32 AM
Replies: 34
Views: 3,419
Posted By DanH
Ed, I too would suggest caution about running 27"...

Ed, I too would suggest caution about running 27" and 2300. Not sayin' you can't, but it's the bleeding edge of what Lycoming allows for stock compression.

Less RPM = less CHT is not contrary to...
Forum: Traditional Aircraft Engines 07-30-2018, 04:37 PM
Replies: 34
Views: 3,419
Posted By DanH
Obviously he does pass through peak EGT, as you...

Obviously he does pass through peak EGT, as you can't get from rich to lean and back any other way. He just doesn't look for it. I suspect he knows exactly where a particular fuel flow puts him in...
Forum: RV Ongoing Maintenance Issues 07-30-2018, 03:26 PM
Replies: 6
Views: 892
Posted By DanH
IIRC, lower viscosity at low temperatures,...

IIRC, lower viscosity at low temperatures, valuable in some jet hydraulic applications.
Forum: RV General Discussion/News 07-29-2018, 08:34 PM
Replies: 56
Views: 5,973
Posted By DanH
Shamefully, I seem to have lost it. Sorry.

Shamefully, I seem to have lost it. Sorry.
Forum: RV General Discussion/News 07-29-2018, 08:55 AM
Replies: 26
Views: 2,954
Posted By DanH
Again? Kidding aside, most temperature problems...

Again?

Kidding aside, most temperature problems are due to multiple contributing factors. If you're serious, start an "Overheating on the ground" thread in Traditional Engines, and be specific...
Forum: RV-8/8A 07-29-2018, 08:32 AM
Replies: 6
Views: 534
Posted By DanH
https://www.homedepot.com/p/Everbilt-Bright-Brass-...

https://www.homedepot.com/p/Everbilt-Bright-Brass-Lid-Support-Left-Hand-Hinges-19834/204485795

...or similar.

https://www.danhorton.net/VAF/RV8%20Cargo%20Door%20Strut/P6020003.JPG
Forum: Safety 07-29-2018, 08:09 AM
Replies: 87
Views: 7,632
Posted By DanH
The basic Ripon arrival works fine. The problems...

The basic Ripon arrival works fine. The problems come from "special handling" interrupting the stream, and this year, metering at Fisk.

Making the procedure more complicated won't solve anything....
Forum: RV General Discussion/News 07-28-2018, 04:09 PM
Replies: 26
Views: 2,954
Posted By DanH
Care to make a wager? I'll give you both CHT and...

Care to make a wager? I'll give you both CHT and oil temperature.
Forum: RV General Discussion/News 07-28-2018, 07:50 AM
Replies: 26
Views: 2,954
Posted By DanH
Scott, to be honest, I don't think there is a...

Scott, to be honest, I don't think there is a departure issue. You got a peak time. Alternating wouldn't have changed the total, and stopping the line to merge multiple aircraft is simply fewer...
Forum: RV General Discussion/News 07-28-2018, 07:23 AM
Replies: 56
Views: 5,973
Posted By DanH
Steve won the trifecta...a piece of **** in...

Steve won the trifecta...a piece of **** in restrictor #4, an EGT instrumentation problem, and a cracked exhaust flange weld. May have been a voodoo doll in there somewhere.

Hey, don't forget to...
Forum: RV General Discussion/News 07-27-2018, 05:15 PM
Replies: 56
Views: 5,973
Posted By DanH
That's what I wanted to hear.

That's what I wanted to hear.
Forum: Electrical Systems 07-27-2018, 05:13 PM
Replies: 5
Views: 584
Posted By DanH
They really mean "install in a cool...

They really mean "install in a cool place".



Diagram please.
Forum: RV General Discussion/News 07-27-2018, 12:37 PM
Replies: 255
Views: 34,502
Posted By DanH
Gents, I'm not a moderator, but I would remind...

Gents, I'm not a moderator, but I would remind all that discussions of the "money cow" side of EAA is not within VAF rules.

BTW, Sunday afternoon I was sitting on the 36 flightline with at least two...
Forum: RV General Discussion/News 07-27-2018, 08:32 AM
Replies: 255
Views: 34,502
Posted By DanH
Let's be practical. When done right, the mass...

Let's be practical. When done right, the mass arrivals process a lot of airplanes in a compressed time segment. Watch the BTO group on a good day. You've never seen so many airplanes active on two...
Forum: RV General Discussion/News 07-27-2018, 07:56 AM
Replies: 25
Views: 4,670
Posted By DanH
Well, another RV Social is history. Everyone...

Well, another RV Social is history. Everyone seemed to have the usual good time, and for the 8th straight year, we got great weather. The name tag system says we had 500+ guests, which is normal. ...
Forum: RV General Discussion/News 07-26-2018, 06:38 PM
Replies: 255
Views: 34,502
Posted By DanH
My take says someone senior in the FAA crew was...

My take says someone senior in the FAA crew was new to OSH, or under the microscope.

I arrived Saturday afternoon, visibility good, but ceiling marginal the last 30 miles or so. At 10 out from...
Forum: Traditional Aircraft Engines 07-26-2018, 07:33 AM
Replies: 7
Views: 639
Posted By DanH
No. The seated plunger blocks a bypass port. ...

No. The seated plunger blocks a bypass port. With the bypass post blocked, all oil flows through the cooler. The plunger is pushed up off its seat when oil viscosity is high, i.e. when it is...
Showing results 1 to 62 of 500

 
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