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Search: Posts Made By: rvbuilder2002
Forum: RV-4 Yesterday, 11:03 PM
Replies: 15
Views: 641
Posted By rvbuilder2002
I personally wouldn't be concerned with adding...

I personally wouldn't be concerned with adding the weight along the entire span. You will be adding a small percentage of the overall amount. Assuring that it stays put is much more important than...
Forum: RV-4 Yesterday, 02:24 PM
Replies: 15
Views: 641
Posted By rvbuilder2002
The ailerons design on the two seat RV's, if...

The ailerons design on the two seat RV's, if built per plans, does not result in an aileron that is 100% statically balanced. There is a lot of service history that indicates that that is not a...
Forum: RV-12/RV-12iS 10-16-2019, 08:15 AM
Replies: 12
Views: 1,460
Posted By rvbuilder2002
I always suggest people keep in mind that there...

I always suggest people keep in mind that there are a lot off different things that can cause a roll imbalance.
Arbitrarily choosing one (adjusting rod ends) without investigating whether the...
Forum: RV-12/RV-12iS 10-13-2019, 10:34 PM
Replies: 25
Views: 6,456
Posted By rvbuilder2002
The carb. tune tool is what we use in our shop. ...

The carb. tune tool is what we use in our shop. We tried the carb mate but never liked it because as already described, if the synch is off very far (pretty common) it is much more difficult to...
Forum: RV General Discussion/News 10-13-2019, 10:23 PM
Replies: 5
Views: 464
Posted By rvbuilder2002
A straight hinge line is important. If it is...

A straight hinge line is important.

If it is not, you may not feel any binding if it is not excessive but the rudder has to flex to compensate for any misalignment.

This is just one of the things...
Forum: RV-12/RV-12iS 10-13-2019, 08:04 PM
Replies: 9
Views: 658
Posted By rvbuilder2002
Since this is the RV-12 forum we can assume the...

Since this is the RV-12 forum we can assume the question is on the context of the RV-12.... Which can be very different from EAB certification that most people are familiar with.
As already...
Forum: RV General Discussion/News 10-12-2019, 10:35 AM
Replies: 37
Views: 5,194
Posted By rvbuilder2002
I think the "to do" that was being discussed was...

I think the "to do" that was being discussed was getting the limitation of no parachute jumping allowed removed from the standard issue operating limitations. There is nothing you can do with Phase...
Forum: RV-12/RV-12iS 10-12-2019, 10:20 AM
Replies: 40
Views: 3,175
Posted By rvbuilder2002
From (the middle of the) page 2-3 of the RV-12...

From (the middle of the) page 2-3 of the RV-12 POH

Never Exceed VNE red line below 16,000 feet 136 IAS

AIRSPEED DESIGNATION KTAS
Never Exceed VNE red line 136

This means that if you below 16,000...
Forum: RV-12/RV-12iS 10-11-2019, 11:58 AM
Replies: 40
Views: 3,175
Posted By rvbuilder2002
The RV-12 POH specifies the Vne as 136 Kts IAS at...

The RV-12 POH specifies the Vne as 136 Kts IAS at or below 16,000 ft.
As long as you never go above 16000 (would be rather rare for an RV-12 I think) you do not have to consider whether it is TAS or...
Forum: Traditional Aircraft Engines 10-10-2019, 10:28 AM
Replies: 13
Views: 834
Posted By rvbuilder2002
It doesn't, but the mag can't be accurately...

It doesn't, but the mag can't be accurately reinstalled without locking then mag position during re-installation and then fine tuning the timing using a magneto timer.
Forum: RV-12/RV-12iS 10-10-2019, 10:26 AM
Replies: 7
Views: 647
Posted By rvbuilder2002
A broken exhaust system in an aircraft can be a...

A broken exhaust system in an aircraft can be a very serious thing.

I would not recommend this approach........
Forum: RV-14 10-10-2019, 10:18 AM
Replies: 3
Views: 341
Posted By rvbuilder2002
And here is a thread originally started to point...

And here is a thread originally started to point builders to W&B info and examples on the Van's web site.

http://www.vansairforce.com/community/showthread.php?t=133335

The links were broken for a...
Forum: RV-12/RV-12iS 10-10-2019, 10:14 AM
Replies: 4
Views: 367
Posted By rvbuilder2002
The RPM rise during ign. check on an RV-12iS is...

The RPM rise during ign. check on an RV-12iS is normal.

My understanding was that it was because of #2 below.
I have never heard of #1 (but that doesn't mean it is not true).
Forum: RV-12/RV-12iS 10-09-2019, 10:57 AM
Replies: 11
Views: 1,128
Posted By rvbuilder2002
If you mean the Red ULS demonstrator? It was the...

If you mean the Red ULS demonstrator? It was the airplane that the the upgraded vent was system was developed on, so yes it has the upgraded vent system and undrilled cap. We have never had any...
Forum: RV General Discussion/News 10-09-2019, 10:49 AM
Replies: 37
Views: 5,194
Posted By rvbuilder2002
Some people feel that way but not me. At least I...

Some people feel that way but not me.
At least I wouldn't want to have it fully open anyway, but I wont go on about that........ I have covered it in other threads.
Forum: RV General Discussion/News 10-09-2019, 09:41 AM
Replies: 37
Views: 5,194
Posted By rvbuilder2002
I agree with you Ralph The sliding canopy as...

I agree with you Ralph

The sliding canopy as designed, is meant to be functional and light weight.
With the way it can shake around during a ground run-up I would not be purposefully opening one in...
Forum: RV General Discussion/News 10-08-2019, 10:38 PM
Replies: 6
Views: 840
Posted By rvbuilder2002
I am also contemplating an upgrade for my RV-6A...

I am also contemplating an upgrade for my RV-6A currently equipped with 100 W halog. in each of two Duckworks leading edge lights.

Strongly considering THESE...
Forum: RV General Discussion/News 10-08-2019, 08:46 PM
Replies: 8
Views: 1,155
Posted By rvbuilder2002
An intermittent sender ground is a common cause...

An intermittent sender ground is a common cause for fuel gauges reading zero.

The standard sender has a resistance value of 240 ohms at empty, to 30 ohms at full. So if the ground is open or poor...
Forum: RV-12/RV-12iS 10-08-2019, 08:21 PM
Replies: 40
Views: 3,175
Posted By rvbuilder2002
Van's has made a recommendation regarding VNE,...

Van's has made a recommendation regarding VNE, based on design details and testing, though only a limited amount of that testing was in actual flight. The rest was done safely on the ground with GVT...
Forum: RV-12/RV-12iS 10-08-2019, 04:27 PM
Replies: 40
Views: 3,175
Posted By rvbuilder2002
Partially correct It is not a lack of air...

Partially correct

It is not a lack of air resistance/pressure interacting with the control surfaces at altitude, it is just that it is less than what it is at lower pressure altitudes.

The TAS VNE...
Forum: RV-12/RV-12iS 10-08-2019, 03:24 PM
Replies: 11
Views: 1,128
Posted By rvbuilder2002
We have a 100 Gal tank mounted on a small trailer...

We have a 100 Gal tank mounted on a small trailer that we keep in the corner of our hangar.

We purchase 91UL with 10% ethanol from a top tier brand station in the small town of aurora about 1 mile...
Forum: RV-12/RV-12iS 10-08-2019, 01:01 PM
Replies: 11
Views: 1,128
Posted By rvbuilder2002
Depends on the model designation (and there are...

Depends on the model designation (and there are quite a few) of the 912.

On the ULS it is standard.
Forum: RV-8/8A 10-07-2019, 12:47 PM
Replies: 14
Views: 1,804
Posted By rvbuilder2002
This is not exclusive to the RV-8. All of the...

This is not exclusive to the RV-8. All of the tail dragger RV's have a 3 point angle of attack that is less than stall AOA.

I learned from Mike Seagar.... taught to work for 3 point all the time...
Forum: RV-12/RV-12iS 10-07-2019, 08:57 AM
Replies: 13
Views: 2,488
Posted By rvbuilder2002
Additionally...... Any different fuel tank...

Additionally......

Any different fuel tank design should have design engineering and static or dynamic load testing done, to confirm the integrity of the tank in typical crash scenarios.

The...
Forum: RV-12/RV-12iS 10-05-2019, 06:26 PM
Replies: 7
Views: 870
Posted By rvbuilder2002
I don't think it has made its way to any of the...

I don't think it has made its way to any of the standard reference documentation yet, but Rotax has officially said that E15 mogas is ok.

In Brazil they have been operating 912's with 25% (and...
Forum: RV-12/RV-12iS 10-05-2019, 06:21 PM
Replies: 1
Views: 264
Posted By rvbuilder2002
It appears that a step to final drill the screw...

It appears that a step to final drill the screw holes to # 27 was inadvertently left off.

#27 is the standard holes size used for all #6 screws
Forum: RV-12/RV-12iS 10-05-2019, 06:14 PM
Replies: 31
Views: 2,849
Posted By rvbuilder2002
from my previous post......

from my previous post......
Forum: RV General Discussion/News 10-05-2019, 03:47 PM
Replies: 23
Views: 2,206
Posted By rvbuilder2002
We have never done any testing of the Sika...

We have never done any testing of the Sika process on any of the two seat canopy installations.

The only testing done was with the bonding installation process recommended for the RV-10 which is a...
Forum: RV General Discussion/News 10-05-2019, 12:11 PM
Replies: 23
Views: 2,206
Posted By rvbuilder2002
That is the primary reason that Vanís has never...

That is the primary reason that Vanís has never endorsed the installation of canopies to flexible frames, and probably never will.
It is a pretty simple process to confirm that a rivet or screw is...
Forum: RV-12/RV-12iS 10-05-2019, 11:54 AM
Replies: 31
Views: 2,849
Posted By rvbuilder2002
With 4 gallons, it is not a problem. It meets...

With 4 gallons, it is not a problem. It meets the minimum requirement.

With less than 4 gallons, doing a go around and climbing to pattern altitude it would not be a problem either.

This has...
Forum: RV General Discussion/News 10-05-2019, 09:21 AM
Replies: 20
Views: 1,177
Posted By rvbuilder2002
There are a bunch of different nice ladyís that...

There are a bunch of different nice ladyís that work in the office at Vanís.
It is possible you spoke with one that didnít know what you meant by bill of sale, and when you called back, you talked...
Forum: RV General Discussion/News 10-04-2019, 05:04 PM
Replies: 8
Views: 340
Posted By rvbuilder2002
Best place to start for the information you seek...

Best place to start for the information you seek is the construction manual.
If you don't already have a copy you should get one. It is invaluable for maintaining the airplane.

You can purchase a...
Forum: RV-12/RV-12iS 10-04-2019, 01:04 PM
Replies: 40
Views: 3,175
Posted By rvbuilder2002
In simplest terms, air is a fluid. In simplest...

In simplest terms, air is a fluid.

In simplest terms of an explanation....
Think of a fixed wing airplane orbiting the earth in the vacuum of space.
There would be zero air molecules to exert any...
Forum: RV General Discussion/News 10-04-2019, 10:44 AM
Replies: 20
Views: 1,177
Posted By rvbuilder2002
I am pretty sure that an official Bill of Sale...

I am pretty sure that an official Bill of Sale has never been sent out in any kit shipped from Van's.
The customer that plans to present the airplane for certification (often not the original...
Forum: RV-14 10-03-2019, 08:37 AM
Replies: 3
Views: 302
Posted By rvbuilder2002
When they first came available, it is likely that...

When they first came available, it is likely that all sections weren't completed yet (the firewall fwd was the last to be completed).

The current available set of RV-14 preview plans would have all...
Forum: RV-14 10-02-2019, 03:22 PM
Replies: 22
Views: 1,541
Posted By rvbuilder2002
Sensitive - quick to detect or respond to slight...

Sensitive - quick to detect or respond to slight changes, signals, or influences.
Responsive - reacting quickly and positively.

Everyone at Van's describes the pitch (and roll and yaw) as...
Forum: RV-7/7A 10-01-2019, 10:56 PM
Replies: 15
Views: 1,508
Posted By rvbuilder2002
I'm saddened to hear that they would be telling...

I'm saddened to hear that they would be telling people that because on an RV at least, a 1/2 inch is ridiculous and can influence a number of different factors on the airplane. Engine cooling being...
Forum: RV-12/RV-12iS 10-01-2019, 10:16 PM
Replies: 7
Views: 752
Posted By rvbuilder2002
AV-50000A's that have R0 on the part # label have...

AV-50000A's that have R0 on the part # label have a PWM circuit that tracks with the dimming of the D1000 screen to control the brightness of the eyeball cockpit light and the green switch indicator...
Forum: RV General Discussion/News 10-01-2019, 08:59 PM
Replies: 8
Views: 523
Posted By rvbuilder2002
As Sam suggested... there is a lot of info and...

As Sam suggested... there is a lot of info and discussion in the archives, but in a nut shell, if money is changing hands for the use of the airplane but the users have no identifiable ownership in...
Forum: RV General Discussion/News 09-30-2019, 05:03 PM
Replies: 9
Views: 653
Posted By rvbuilder2002
Standard edge distance is 2D from hole center so...

Standard edge distance is 2D from hole center so your dimensions are acceptable.
Forum: RV General Discussion/News 09-30-2019, 02:43 AM
Replies: 2
Views: 266
Posted By rvbuilder2002
The scoop is a molded part of the lower cowl, so...

The scoop is a molded part of the lower cowl, so you order the lower cowl that matches the configuration of your engine.
I think the finish kit order form (where people generally order the cowl) has...
Forum: RV-12/RV-12iS 09-30-2019, 02:37 AM
Replies: 9
Views: 1,005
Posted By rvbuilder2002
My recommendation (based on personal experience)...

My recommendation (based on personal experience) has always been to restrain the tail in some way. Ideally with a solid support so that it canít bounce up and down at all. If you look at the photos...
Forum: RV-9/9A 09-29-2019, 08:34 PM
Replies: 33
Views: 3,736
Posted By rvbuilder2002
Very wise advice The way to fly an RV smoothly...

Very wise advice

The way to fly an RV smoothly is to keep it always in trim (pitch & roll) and only move the controls when you need or want to change the aircrafts attitude.

The one exception is I...
Forum: RV-9/9A 09-28-2019, 02:43 PM
Replies: 7
Views: 432
Posted By rvbuilder2002
Let me guess.... the poor dimples on the first...

Let me guess.... the poor dimples on the first tank were probably done with a hand squeezer?
The fuel tank skin is pretty thick by RV standards, but still no where thick enough to machine...
Forum: RV General Discussion/News 09-27-2019, 12:55 AM
Replies: 3
Views: 292
Posted By rvbuilder2002
The VERTICAL stab and rudder can be used but the...

The VERTICAL stab and rudder can be used but the horizontal can't.
These were actually specified in the last generation emp kits so the part numbers do show up in the late version plans.
So the...
Forum: RV General Discussion/News 09-25-2019, 04:13 PM
Replies: 3
Views: 431
Posted By rvbuilder2002
Crazy? No. Is it practical? For just a maybe...

Crazy? No.
Is it practical? For just a maybe situation some day in the future, not in my opinion.
Especially since the tail dragged gear sockets protrude slightly outside of the cowl profile. ...
Forum: RV-12/RV-12iS 09-25-2019, 02:49 PM
Replies: 25
Views: 2,063
Posted By rvbuilder2002
Norm, I didnít mean to offend with my post. I was...

Norm,
I didnít mean to offend with my post.
I was just trying to point out that a little bit of data that only tells a small piece of a story doesnít really provide any useful info. I donít mean to...
Forum: RV Ongoing Maintenance Issues 09-25-2019, 04:04 AM
Replies: 47
Views: 3,652
Posted By rvbuilder2002
From discussions over the years with people that...

From discussions over the years with people that have had this occur, my theory has always been that it is related to the expandability of the long hose under high pressure.
Any object will expand...
Forum: RV-12/RV-12iS 09-24-2019, 08:20 PM
Replies: 11
Views: 716
Posted By rvbuilder2002
The office could tell you when the fuselage kit...

The office could tell you when the fuselage kit was shipped for that serial #.
Forum: RV-12/RV-12iS 09-24-2019, 06:31 PM
Replies: 11
Views: 716
Posted By rvbuilder2002
In the context of your other thread asking about...

In the context of your other thread asking about aircraft weights...... the weight of the different options on the RV-12 are pretty well known.
Adding the autopilot will add about 5 lbs.

Fuselage...
Forum: RV Ongoing Maintenance Issues 09-23-2019, 04:19 PM
Replies: 47
Views: 3,652
Posted By rvbuilder2002
I agree, there are a lot of variables and zeroing...

I agree, there are a lot of variables and zeroing in on a cause of this type of condition can be a challenge. Further proof of that is that chatter with hard lines happens occasionally as well.

...
Forum: RV-12/RV-12iS 09-23-2019, 02:28 PM
Replies: 25
Views: 2,063
Posted By rvbuilder2002
Some equally important info missing is what the...

Some equally important info missing is what the climb performance was.

Based on the speed #ís, it was (is?) not as good as it should be, along with having a neg. influence on oil temp and lugging...
Forum: RV-12/RV-12iS 09-22-2019, 04:18 PM
Replies: 25
Views: 2,063
Posted By rvbuilder2002
Correct, and that is my point. The prop pitch...

Correct, and that is my point.
The prop pitch that most owners find to be best won't allow full throttle operations and remain at or below 5500 RPM (max. Continuous allowed) until altitude in the...
Forum: RV Ongoing Maintenance Issues 09-22-2019, 02:55 PM
Replies: 47
Views: 3,652
Posted By rvbuilder2002
As I wrote previously, many people have had the...

As I wrote previously, many people have had the flexible lines work. Some have not. It is doubtful that all used the same exact installation so knowing what is "different" is the only info that would...
Forum: RV-12/RV-12iS 09-22-2019, 12:55 PM
Replies: 25
Views: 2,063
Posted By rvbuilder2002
An RV-12 with the prop pitch set to provide the...

An RV-12 with the prop pitch set to provide the best overall performance will not be at full throttle in cruise flight until flown in the low to mid teens.

An RV-12 that requires full throttle to...
Forum: RV Ongoing Maintenance Issues 09-22-2019, 01:04 AM
Replies: 47
Views: 3,652
Posted By rvbuilder2002
I didn’t take the time to read all responses but...

I didn’t take the time to read all responses but we have seen this numerous times over the years when people change from solid lines to long flexible ones.

Any flexible line has some level of expand...
Forum: RV-6/6A 09-22-2019, 12:47 AM
Replies: 38
Views: 3,790
Posted By rvbuilder2002
I have been active in the RV coummunity for a...

I have been active in the RV coummunity for a long time and I donít remember every seeing much in regards to detailed engineering data for the RV-6 ever distributed publically, so I am not sure what...
Forum: RV-6/6A 09-22-2019, 12:43 AM
Replies: 38
Views: 3,790
Posted By rvbuilder2002
Threads like this never go anywhere good,...

Threads like this never go anywhere good, regardless of what I say so Iím choosing to say very little.

The info that should be considered would require much more than a few lines of text in a forum...
Forum: RV-6/6A 09-20-2019, 08:03 PM
Replies: 38
Views: 3,790
Posted By rvbuilder2002
The wing is not the only structural element of...

The wing is not the only structural element of the airplane that is effected by all up load.
If the statement you quoted was meant to imply that because of the overall wing strength the RV-6 gross...
Forum: RV-6/6A 09-20-2019, 06:37 PM
Replies: 38
Views: 3,790
Posted By rvbuilder2002
This is not true. The same engineering was used...

This is not true.
The same engineering was used for each.

If you have some specific info or documentation you can point to that indicates otherwise, I would appreciate knowing wher to look for it.
Forum: RV General Discussion/News 09-20-2019, 05:39 PM
Replies: 17
Views: 941
Posted By rvbuilder2002
Depends on how define the term preview plans I...

Depends on how define the term preview plans I guess.....

The standard process is that with the purchase of an individual kit such as an RV-10 Empanage / Tail Cone, the only plans the builder...
Forum: Electronic Ignition Systems 09-20-2019, 01:50 AM
Replies: 10
Views: 2,576
Posted By rvbuilder2002
Unless your not only talking about customer built...

Unless your not only talking about customer built aircraft..........

The prototype RV-6A is approaching 6000 hrs ( donít remember the exact amount)
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