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Search: Posts Made By: DanH
Forum: Fiberglass 08-10-2022, 04:55 PM
Replies: 25
Views: 1,143
Posted By DanH
Upper fairing has (each side) one at the front...

Upper fairing has (each side) one at the front and two at the rear. Doesn't actually need screws at the front because it hooks around the leading edge of the HS.

The fairing under the HS is just 4...
Forum: Fiberglass 08-10-2022, 09:46 AM
Replies: 25
Views: 1,143
Posted By DanH
Paul, choosing an attack plan here is arguably a...

Paul, choosing an attack plan here is arguably a case of desired result...physical configuration, not quality.

If you're going with rows of screws along the edges and metal close-outs under the HS...
Forum: RV Building Tips/Techniques 08-09-2022, 08:48 AM
Replies: 30
Views: 973
Posted By DanH
Yes, higher temperature, held for some period of...

Yes, higher temperature, held for some period of time. No guarantee, but it should work.

The experience basis is the behavior of cowlings subjected to normal engine compartment heating. I have...
Forum: RV-14 08-08-2022, 01:46 PM
Replies: 9
Views: 765
Posted By DanH
Might want to get some temperature measurements...

Might want to get some temperature measurements before choosing to feed water and dirt into the back of an alternator. And since it has fans at both ends, the blast tube is supplying something less...
Forum: Traditional Aircraft Engines 08-08-2022, 11:22 AM
Replies: 14
Views: 547
Posted By DanH
That's where Plane Power was placing blame for...

That's where Plane Power was placing blame for the bearing boss failures; owners and mechanics using the new belt slip spec rather than the used belt spec. I'm just sayin'...
Forum: RV Building Tips/Techniques 08-08-2022, 11:16 AM
Replies: 30
Views: 973
Posted By DanH
Glass/epoxy will creep given warm temperatures...

Glass/epoxy will creep given warm temperatures and time. Before making any big moves, just put a cinch strap around the cowl and pull it tight. Check for good fit at the seams with the gap pulled...
Forum: Traditional Aircraft Engines 08-08-2022, 09:11 AM
Replies: 14
Views: 547
Posted By DanH
Alternator tension method below. However, the...

Alternator tension method below. However, the Plane Power has exhibited a failure mode in which the bearing boss in the rear cover gets enlarged, allowing that end of the rotor enough wobble to...
Forum: RV Building Tips/Techniques 08-08-2022, 08:38 AM
Replies: 7
Views: 320
Posted By DanH
Same for manifold pressure. A restrictor in the...

Same for manifold pressure. A restrictor in the primer port fitting prevents that cylinder from going very lean if the hose comes off or is cut.
Forum: RV Building Tips/Techniques 08-08-2022, 08:21 AM
Replies: 30
Views: 973
Posted By DanH
No rotation. Just move it straight aft. BTW,...

No rotation. Just move it straight aft.

BTW, When using flox or micro, don't miss the opportunity to rough off excess material when the epoxy cures to the cheese stage...still soft, but no longer...
Forum: RV Building Tips/Techniques 08-08-2022, 06:18 AM
Replies: 30
Views: 973
Posted By DanH
The spinner-sized hoop at the front of the cowl...

The spinner-sized hoop at the front of the cowl is structure, and it's stressed more than most folks realize. Dynamic pressure inflates the cowl like a balloon, and total load (available dynamic...
Forum: RV Building Tips/Techniques 08-07-2022, 08:35 PM
Replies: 165
Views: 153,844
Posted By DanH
Dry sanding might do it. I use 800 if I need a...

Dry sanding might do it. I use 800 if I need a heavy initial cut, but it's done wet.
Forum: Traditional Aircraft Engines 08-07-2022, 08:27 PM
Replies: 116
Views: 14,514
Posted By DanH
Actually, there is always some flow through the...

Actually, there is always some flow through the cooler. An extended vernatherm forces all of it through the cooler.
.
Forum: Traditional Aircraft Engines 08-07-2022, 11:34 AM
Replies: 116
Views: 14,514
Posted By DanH
Oil cooler, then to the filter. My notes say...

Oil cooler, then to the filter.



My notes say 12~14, but I don't recall a Lycoming source for the information. Multiple non-OEM sources (Aviation Consumer, Tempest, etc) say the Lycoming adapter...
Forum: RV General Discussion/News 08-07-2022, 09:55 AM
Replies: 53
Views: 7,867
Posted By DanH
Same here, about 2013. I was cleared to the 27...

Same here, about 2013. I was cleared to the 27 green dot, but a runway controller released a departure which looked like a conflict, so I clicked mike and said "Going around". The tower controller...
Forum: Traditional Aircraft Engines 08-07-2022, 07:00 AM
Replies: 116
Views: 14,514
Posted By DanH
Yes, but thank you, I stand corrected. Not all...

Yes, but thank you, I stand corrected. Not all have an anti-drainback valve, including the Tempest 110's I've been using with an AC-style adapter.



The 110 has no pressure relief valve. The...
Forum: RV-14 08-06-2022, 09:48 PM
Replies: 9
Views: 765
Posted By DanH
Without before and after temperature measurement,...

Without before and after temperature measurement, no one knows if they really need a blast tube, or if adding one actually does anything useful.
Forum: Traditional Aircraft Engines 08-06-2022, 09:33 PM
Replies: 116
Views: 14,514
Posted By DanH
Well, best I know, all the Champion and Tempest...

Well, best I know, all the Champion and Tempest filters incorporate an anti-drainback valve.

48108 and 109 filters also have a pressure relief valve, because a lot of Continentals, and several...
Forum: Traditional Aircraft Engines 08-06-2022, 03:16 PM
Replies: 116
Views: 14,514
Posted By DanH
The check valve prevents oil from draining back...

The check valve prevents oil from draining back down the pump passage when the vernatherm cools and opens. The goal is to keep the pump primed, not to keep the filter full. There is no check valve...
Forum: Safety 08-05-2022, 04:05 PM
Replies: 91
Views: 10,463
Posted By DanH
Most of the rudder damage seen here is torsional...

Most of the rudder damage seen here is torsional overstress, not a failure of your gust lock. For rudders fixated with any type of lock which holds the rudder horns, directly or indirectly, the...
Forum: Safety 08-05-2022, 08:14 AM
Replies: 91
Views: 10,463
Posted By DanH
The smaller, stiffer -8 rudders seem to have held...

The smaller, stiffer -8 rudders seem to have held up fine, but still, I think I'll remove the bottom cap for a look at the horn attach area. As for the A-models and zipper rudders, I strongly...
Forum: Safety 08-04-2022, 09:17 AM
Replies: 91
Views: 10,463
Posted By DanH
Knee bone connected to the leg bone....;) If the...

Knee bone connected to the leg bone....;)

If the tailwheel is tied down and centered, the pin is extended into the notch in the steering arm, which is coupled to the rudder by a link or chains. ...
Forum: Safety 08-04-2022, 08:20 AM
Replies: 91
Views: 10,463
Posted By DanH
In my opinion, yes. And we saw twisted and or...

In my opinion, yes. And we saw twisted and or broken examples which were fixated at the top, at the balance mass arm, as well as at the bottom, at the stops or rudder pedals.



Agree, although...
Forum: RV Building Tips/Techniques 08-03-2022, 09:21 PM
Replies: 15
Views: 723
Posted By DanH
I'll say 0.008 for a wet layup, but it's hard to...

I'll say 0.008 for a wet layup, but it's hard to be precise. A high modulus carbon strip inside and outside is the right idea.

The edge shown below had multiple plies of glass tape added to the...
Forum: RV-8/8A 08-03-2022, 06:59 PM
Replies: 20
Views: 1,994
Posted By DanH
Jim, you have it right. New seals would be a big...

Jim, you have it right. New seals would be a big improvement.

The upper cowl tells a lot. I've circled some areas. The red circles show smudge tracks, areas with dirt and soot stains where lots...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 08-03-2022, 04:34 PM
Replies: 3
Views: 588
Posted By DanH
HBC Parking Into the Wind

Short version...

First, Doug has long asked us to not discuss EAA policy here on VAF. So, please do not reply to this post. Perhaps a moderate can lock it.

Subject is HBC parking at OSH,...
Forum: RV General Discussion/News 08-03-2022, 07:32 AM
Replies: 23
Views: 5,261
Posted By DanH
A few more photos from the Social. Took these...

A few more photos from the Social. Took these early, before things got busy shaking barrels and changing taps.

Jesse won the t-shirt contest.

No matter how hard I try, I just can't grin like...
Forum: RV-14 08-02-2022, 08:56 AM
Replies: 18
Views: 2,410
Posted By DanH
Ok, about 30 BTDC at max advance, a good place...

Ok, about 30 BTDC at max advance, a good place for the angle valve when 50 LOP, where the advance compensates for the slower flame speed. Good call.

Still too advanced for ROP mixture, when flame...
Forum: RV General Discussion/News 08-02-2022, 07:44 AM
Replies: 12
Views: 1,536
Posted By DanH
Because it would be just one more special group...

Because it would be just one more special group gumming the works for the rest of us.

Besides, we're not that special, not in the context of performance. There are aircraft types with special...
Forum: RV Ongoing Maintenance Issues 08-01-2022, 02:07 PM
Replies: 423
Views: 1,475,914
Posted By DanH
Makes sense.

Makes sense.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 08-01-2022, 01:57 PM
Replies: 20
Views: 2,299
Posted By DanH
Robert must be too bashful to show everyone the...

Robert must be too bashful to show everyone the whole airplane. Here it is, one of my walking around "probably win something" shots.
.
Forum: RV-14 08-01-2022, 01:45 PM
Replies: 18
Views: 2,410
Posted By DanH
Installation is clocked, or set at TDC? ...

Installation is clocked, or set at TDC?



That's because with the jumper out, timing is too far advanced for an angle valve running ROP. You would go faster at around 23 BTDC.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 07-31-2022, 07:27 AM
Replies: 20
Views: 2,299
Posted By DanH
Grand Champion Kit. It was in HBC; I saw it taxi...

Grand Champion Kit. It was in HBC; I saw it taxi in and commented on the eye-catching paint scheme. Hope Mr. Eaton will tell us more about it.
.
Forum: My RV Build Project 07-31-2022, 06:16 AM
Replies: 9
Views: 1,469
Posted By DanH
Dave, will the turbine require a longer cowl,...

Dave, will the turbine require a longer cowl, with the prop more forward?
Forum: RV General Discussion/News 07-31-2022, 06:11 AM
Replies: 10
Views: 755
Posted By DanH
3/4" behind the tire, so yes, they rub on lots of...

3/4" behind the tire, so yes, they rub on lots of things...hangar tracks, pavement drop-offs, grass and rocks. Every year or two I stuck a small patch on the worn spot. Photo was about 300 hours. ...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 07-31-2022, 05:57 AM
Replies: 20
Views: 2,299
Posted By DanH
..........

..........
Forum: RV General Discussion/News 07-30-2022, 05:49 PM
Replies: 10
Views: 755
Posted By DanH
Zero.... .

Zero....
.
Forum: Midwest 07-29-2022, 11:35 AM
Replies: 111
Views: 30,908
Posted By DanH
Yeah, 6 AM would have been a good time. The guys...

Yeah, 6 AM would have been a good time. The guys who move 'em might not get much say about when they move 'em. Lots of Big Mules...

Must have closed both after I got out. We were parked about 10...
Forum: Midwest 07-29-2022, 10:52 AM
Replies: 111
Views: 30,908
Posted By DanH
That was my point.

That was my point.
Forum: Painting your RV 07-29-2022, 10:35 AM
Replies: 17
Views: 1,466
Posted By DanH
One guy over-squeezing a trailing edge radius...

One guy over-squeezing a trailing edge radius isn't an argument against painting before flight test. He had to paint an aileron he broke. Most of us squeeze 'em without even cracking paint.
Forum: Midwest 07-29-2022, 08:58 AM
Replies: 111
Views: 30,908
Posted By DanH
Friday afternoon, the ATIS said "Winds variable,...

Friday afternoon, the ATIS said "Winds variable, gusting to 16", something I had never heard before. What, gusts from random directions? Forecasts and other local airports were generally 220~240,...
Forum: Painting your RV 07-29-2022, 06:22 AM
Replies: 17
Views: 1,466
Posted By DanH
The choice is largely practical. If you can't...

The choice is largely practical.

If you can't paint at home, chances are you'll fully assemble and paint later. And since very few airports (or T-hangar neighbors) want painting near other...
Forum: RV General Discussion/News 07-25-2022, 06:52 PM
Replies: 23
Views: 5,261
Posted By DanH
Last tap dry at 7:35, easily a new record. ...

Last tap dry at 7:35, easily a new record. Eleven half barrels, 170 gallons, something over 600 guests.
Forum: Midwest 07-25-2022, 06:39 PM
Replies: 111
Views: 30,908
Posted By DanH
Won the RV Red class today, Airventure Cup . Our...

Won the RV Red class today, Airventure Cup . Our own Daddyman. Celebratory beer drinking in progress.
Forum: Midwest 07-23-2022, 07:18 PM
Replies: 111
Views: 30,908
Posted By DanH
Oh no...... And so far I've counted five A-model...

Oh no......

And so far I've counted five A-model rudders with holes in them. There will be more.
Forum: Trip Write-ups 07-20-2022, 07:04 PM
Replies: 27
Views: 4,395
Posted By DanH
Cue George Thorogood....bad to the bone.

Cue George Thorogood....bad to the bone.
Forum: Alternative Engines 07-20-2022, 03:55 PM
Replies: 29
Views: 3,382
Posted By DanH
We can say the same for the pros flying the OSH...

We can say the same for the pros flying the OSH airshow next week. It's the Bubbas who get killed.



Then why would anyone want it?

Seriously, from the vendor site..."an optimum cruise power at...
Forum: Alternative Engines 07-20-2022, 12:49 PM
Replies: 29
Views: 3,382
Posted By DanH
It seems more than a bit irresponsible for a...

It seems more than a bit irresponsible for a vendor to put a turbine on the RV model which has most often come apart due to overspeed.
Forum: RV-15 07-20-2022, 06:40 AM
Replies: 457
Views: 91,381
Posted By DanH
This may sound strange, but my #1 interest here...

This may sound strange, but my #1 interest here is ease of entry and exit, with #2 being seating comfort (legroom, headroom, width). I suspect I'm not alone in this group. We're all getting older,...
Forum: Traditional Aircraft Engines 07-20-2022, 05:51 AM
Replies: 12
Views: 6,311
Posted By DanH
Is this new and different? Put another way,...

Is this new and different? Put another way, given similar power settings and OAT, are these temperatures typical?

I watch for change. When something suddenly goes outside the norm, concern is...
Forum: RV Building Tips/Techniques 07-19-2022, 04:08 PM
Replies: 9
Views: 759
Posted By DanH
My wings never met the fuselage until introduced...

My wings never met the fuselage until introduced at the airport.
Forum: RV-10 07-18-2022, 05:53 PM
Replies: 20
Views: 1,896
Posted By DanH
Sorry, no good Columbia/Corvalis baffle pictures...

Sorry, no good Columbia/Corvalis baffle pictures on my hard drive, just the green exterior below. Conceptually it will be similar to the Acclaim (below), or for that matter, a Glasair Sportsman. ...
Forum: RV-10 07-18-2022, 06:18 AM
Replies: 20
Views: 1,896
Posted By DanH
This is interesting. Don't recall ever seeing a...

This is interesting. Don't recall ever seeing a Showplanes setup with the cowl off. What does Bryan specify for sealing those inlets?



Oh yeah.

I asked about ring diameter because with the...
Forum: RV-10 07-17-2022, 05:31 AM
Replies: 20
Views: 1,896
Posted By DanH
Thank you, and you're entirely welcome. OD or...

Thank you, and you're entirely welcome.



OD or ID?

Do I understand correctly, you're currently flying without a sealed joint between the aluminum ring and the plenum entry duct?
Forum: RV-10 07-16-2022, 10:27 PM
Replies: 20
Views: 1,896
Posted By DanH
Pretty work! Richard, what are the inlet...

Pretty work!

Richard, what are the inlet diameters?
Forum: Painting your RV 07-15-2022, 12:58 PM
Replies: 10
Views: 1,144
Posted By DanH
Tell him the rattle can primer is a pointless...

Tell him the rattle can primer is a pointless waste of time and money. If the painter is any good, he will sand it off and start over with a two-part primer.
Forum: Painting your RV 07-15-2022, 07:05 AM
Replies: 10
Views: 1,144
Posted By DanH
See the previous caveat. Not a problem if all of...

See the previous caveat. Not a problem if all of it is sanded away, leaving only the tiny bit down in the pinhole.

Used as a glaze, i.e for surface build? Yes, bad idea.
Forum: Painting your RV 07-15-2022, 06:03 AM
Replies: 10
Views: 1,144
Posted By DanH
Sean, either is fine, with a caveat. Squeegee...

Sean, either is fine, with a caveat. Squeegee them into the pinhole with some force. When when cured, sand off all trace, leaving only the filler down in the pinhole.

You mentioned "filler primer...
Forum: RV General Discussion/News 07-14-2022, 09:25 PM
Replies: 10
Views: 1,230
Posted By DanH
Steve, leaving Thursday you can easily make it...

Steve, leaving Thursday you can easily make it into OSH on Friday and miss the Saturday mass arrival nonsense.
Forum: Southeast 07-14-2022, 06:31 PM
Replies: 22
Views: 2,288
Posted By DanH
Actually, it was Jesse. I agree of course,...

Actually, it was Jesse. I agree of course, without reservation or doubt. The math is irrefutable. Or at least sounds convincing.

https://vansairforce.net/community/showthread.php?t=165287

Video...
Forum: Southeast 07-14-2022, 09:31 AM
Replies: 22
Views: 2,288
Posted By DanH
Once a fighter pilot, always a fighter pilot ;)

Once a fighter pilot, always a fighter pilot ;)
Forum: RV-15 07-12-2022, 07:54 AM
Replies: 457
Views: 91,381
Posted By DanH
Not like it's a big surprise, but did anyone...

Not like it's a big surprise, but did anyone notice the front prop governor? Most of us have been betting on a 390. I still am.

As before, I wish Monty was here to see this.
.
Forum: Painting your RV 07-11-2022, 02:16 PM
Replies: 22
Views: 1,935
Posted By DanH
Your tag says San Jose, so you might want to find...

Your tag says San Jose, so you might want to find a friendly auto paint store and ask questions. California tends to have its own rulebook.

Actually that's my standard advice...find a friendly...
Forum: RV-15 07-11-2022, 09:26 AM
Replies: 457
Views: 91,381
Posted By DanH
Great design is the art of intelligent compromise.

Great design is the art of intelligent compromise.
Forum: RV-7/7A 07-10-2022, 11:40 AM
Replies: 4
Views: 426
Posted By DanH
Yes indeed, that's it. Thank you Dave.

Yes indeed, that's it. Thank you Dave.
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