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Search: Posts Made By: rvbuilder2002
Forum: RV-12/RV-12iS Yesterday, 05:53 PM
Replies: 28
Views: 1,452
Posted By rvbuilder2002
Testing showed it was altitude related, but not...

Testing showed it was altitude related, but not fuel flow related, at least not at the Fuel flows that people would typically operate at in the effected altitude range.
Forum: RV-12/RV-12iS Yesterday, 05:48 PM
Replies: 28
Views: 1,452
Posted By rvbuilder2002
We tried one.

We tried one.
Forum: RV-12/RV-12iS Yesterday, 02:43 PM
Replies: 28
Views: 1,452
Posted By rvbuilder2002
Because only some airplanes exhibit the condition...

Because only some airplanes exhibit the condition and of those that do, it is not exactly the same on every one.

Why just at 6000-8000 feet? If we knew that, we would probably have a...
Forum: RV-12/RV-12iS Yesterday, 12:48 PM
Replies: 28
Views: 1,452
Posted By rvbuilder2002
We have actually done a lot of experimenting to...

We have actually done a lot of experimenting to try and find a solution for the strange phenomena.

- Full transparency follows -
Nothing we tried made any difference (and I assure you we tried a lot...
Forum: RV General Discussion/News Yesterday, 08:18 AM
Replies: 2
Views: 274
Posted By rvbuilder2002
The main concern is in situations where the plans...

The main concern is in situations where the plans call out the use of washers as spacers......

Even though both washer designations are aircraft grade hardware, the NAS part has a much tighter...
Forum: RV-12/RV-12iS 09-21-2020, 12:39 PM
Replies: 28
Views: 1,452
Posted By rvbuilder2002
Actually it is about what rules you are operating...

Actually it is about what rules you are operating with under your rating.

As already mentioned, if you are a Private Pilot (or higher) rating but are flying as a Sport Pilot with no medical (just a...
Forum: RV-12/RV-12iS 09-21-2020, 08:41 AM
Replies: 28
Views: 1,452
Posted By rvbuilder2002
Jim Stricker EAA #499867 PPL/ASEL 1970 - Sport...

Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs...
Forum: RV-14 09-19-2020, 07:56 PM
Replies: 5
Views: 374
Posted By rvbuilder2002
This is incorrect The new cowl was designed for...

This is incorrect

The new cowl was designed for the new exhaust system that Van's Aircraft developed (and produces in house) in collaboration with Lycoming for the installation of the EXP119 engine,...
Forum: RV General Discussion/News 09-18-2020, 03:31 PM
Replies: 20
Views: 1,479
Posted By rvbuilder2002
As already mentioned, IFR certification means...

As already mentioned, IFR certification means nothing regarding the assurance that the ASI is calebrated.

Stating a power level with just an RPM indication has little value in determining what the...
Forum: RV-6/6A 09-18-2020, 08:38 AM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
It is not an absolute that modifications or...

It is not an absolute that modifications or changes would be required, but we want everyone to be full aware that it is a good possibility.

So you should expect to have to do nothing, or entirely...
Forum: RV-6/6A 09-18-2020, 08:35 AM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
Van's hasn't documented a specific penetration...

Van's hasn't documented a specific penetration for an IO engine on the RV-9(A) but using the same one recommended for the RV-7(A) should work.
I don't think using the new engine mount / nose gear...
Forum: RV-6/6A 09-17-2020, 09:41 AM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
Did you receive your engine mount/nose gear in a...

Did you receive your engine mount/nose gear in a finish kit or as a separate retrofit purchase? (You should have received DWG 19 if it was in a finish kit)


Note: any drawing files posted in this...
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-16-2020, 03:37 PM
Replies: 3
Views: 770
Posted By rvbuilder2002
Quite a bit newer one than just the RV-3, 4, and...

Quite a bit newer one than just the RV-3, 4, and 6 edition but a lot of the footage is the same.

https://www.youtube.com/watch?v=0EHrwuKq_aA&t=58s
Forum: RV-6/6A 09-16-2020, 10:30 AM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
No problem I don't have one but a photo of the...

No problem

I don't have one but a photo of the left side would be of little value. There is nothing on the left side at all. The carb. mixture control routes directly from the rear (visible in...
Forum: RV-6/6A 09-16-2020, 09:28 AM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
Potentially it would fit, but it hasn't been...

Potentially it would fit, but it hasn't been tested here so I am hesitant to say for certain it will.

Here is a photo and OP drawing of the redesigned bracket(s). It uses a bell crank to route the...
Forum: RV-6/6A 09-15-2020, 05:31 PM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
The new engine mount / nose gear was prototyped...

The new engine mount / nose gear was prototyped on the RV-9A.
It has an O-320 with a carb
The new bracket works with the carb only. It will not work with a vertically mounted RSA or AFP fuel...
Forum: RV-6/6A 09-15-2020, 03:54 PM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
I just confirmed with the engineer that designed...

I just confirmed with the engineer that designed it. There is a new design bracket to be used with the new nose gear on an RV-6,7 or 9.

The "but" is that it is only for use with a carburetor. You...
Forum: RV Building Tips/Techniques 09-13-2020, 08:27 PM
Replies: 9
Views: 920
Posted By rvbuilder2002
I can't think of any benefit to using an etching...

I can't think of any benefit to using an etching chemical on the tank parts if no conversion coating was going to be used as well.
Mechanically abrading the mating surfaces where sealant will be used...
Forum: RV-12/RV-12iS 09-13-2020, 08:14 PM
Replies: 10
Views: 762
Posted By rvbuilder2002
The 25 hr inspection is nothing regulatory /...

The 25 hr inspection is nothing regulatory / required by the FAA. It is stipulated by Rotax and should ideally be done by a mechanic with the proper iRMT certification for the 912iS. Having it done...
Forum: RV-12/RV-12iS 09-13-2020, 08:01 PM
Replies: 10
Views: 762
Posted By rvbuilder2002
It is prescribed at the end of the PAP as a...

It is prescribed at the end of the PAP as a reminder to do it at 5 hrs or when flight testing is completed.
Forum: RV Building Tips/Techniques 09-12-2020, 11:01 AM
Replies: 9
Views: 920
Posted By rvbuilder2002
Leading edge and main ribs are manufactured from...

Leading edge and main ribs are manufactured from soft “O” material that has been heat treated prior to them being Hydro formed. That is why these parts don’t come with blue vinyl on them. The heat...
Forum: RV-14 09-12-2020, 10:48 AM
Replies: 4
Views: 409
Posted By rvbuilder2002
The key requirement is that the materials are...

The key requirement is that the materials are tight together at the location of the rivet. If there are slight gaps out between the rivets it has no influence on structural strength.
Forum: Safety 09-09-2020, 08:25 AM
Replies: 57
Views: 6,894
Posted By rvbuilder2002
Airspeed selection box at the top of the airspeed...

Airspeed selection box at the top of the airspeed tape say "KTS"
Forum: RV-14 09-08-2020, 03:25 PM
Replies: 134
Views: 120,715
Posted By rvbuilder2002
I think the rivet count call out is a typo. The...

I think the rivet count call out is a typo.
The prototypes and the current parts have 8 holes per side.
Forum: RV General Discussion/News 09-08-2020, 02:14 PM
Replies: 117
Views: 9,929
Posted By rvbuilder2002
I have thought the same thing. I don't know the...

I have thought the same thing.
I don't know the answer but some testing could be done and then some specific landing procedures developed to work within the limitations.

My gut feeling (without any...
Forum: RV General Discussion/News 09-08-2020, 01:53 PM
Replies: 117
Views: 9,929
Posted By rvbuilder2002
I think a section of the instrument panel could...

I think a section of the instrument panel could easily be moved fwd some amount.

Positioning the seat further aft should not be a problem either and likely wouldn't even require removal of a rear...
Forum: RV General Discussion/News 09-08-2020, 01:44 PM
Replies: 117
Views: 9,929
Posted By rvbuilder2002
Good info As long as the majority of people...

Good info



As long as the majority of people involved with the build do it voluntarily and not for pay, certifying as an experimental amateur built should not be a problem.

The complication comes...
Forum: Traditional Aircraft Engines 09-07-2020, 06:19 PM
Replies: 4
Views: 839
Posted By rvbuilder2002
The drive adapter only needs to stay if there is...

The drive adapter only needs to stay if there is a plan to install a back-up alternator in place of the vacuum pump.

If not, it can be removed for a bit of weight reduction on the airplane, and...
Forum: RV-6/6A 09-07-2020, 06:12 PM
Replies: 38
Views: 2,339
Posted By rvbuilder2002
I think there was a new design control cable...

I think there was a new design control cable bracket developed.
Call or e-mail the office and check.
Forum: RV-14 09-07-2020, 06:07 PM
Replies: 5
Views: 480
Posted By rvbuilder2002
Nope. No proseal holding canopy seals on the...

Nope. No proseal holding canopy seals on the prototypes.
If something like this comes loose we use Pliobond, but I am pretty sure that ours are so far holding with the original adhesive.
Forum: RV General Discussion/News 09-07-2020, 06:00 PM
Replies: 61
Views: 16,679
Posted By rvbuilder2002
Did the inspector also check the pilot circuit...

Did the inspector also check the pilot circuit for leaks?
Your photo shows a static system test for a transponder certification. Here in the USA, having a transponder certification check done...
Forum: RV General Discussion/News 09-07-2020, 08:56 AM
Replies: 61
Views: 16,679
Posted By rvbuilder2002
Test pitot and static system for a leak.

Test pitot and static system for a leak.
Forum: RV General Discussion/News 09-05-2020, 04:37 PM
Replies: 117
Views: 9,929
Posted By rvbuilder2002
Some additional thoughts...... I think an...

Some additional thoughts......

I think an experimental category airplane is perfect for developing systems to adapt to specific needs of particular pilots.

Like Dan, my first thought was an RV-8A...
Forum: RV-12/RV-12iS 08-30-2020, 10:28 AM
Replies: 9
Views: 1,179
Posted By rvbuilder2002
While it is true that no oil will be returned to...

While it is true that no oil will be returned to the tank from the crank case if cranking with spark plugs removed, only a small amount of oil will land in the crank case in the time that it takes to...
Forum: RV General Discussion/News 08-30-2020, 10:14 AM
Replies: 51
Views: 7,396
Posted By rvbuilder2002
Hard landings or rough field operation is only a...

Hard landings or rough field operation is only a couple of the potential factors this SB addresses.

Another major one is torsional loads on the tail spring.
Such as when the tail wheel drops in a...
Forum: RV-12/RV-12iS 08-29-2020, 09:36 PM
Replies: 12
Views: 1,643
Posted By rvbuilder2002
Early RV-12's with a single D-180, no lights,...

Early RV-12's with a single D-180, no lights, wheel pants or auto pilot servos, and minimal paint typically weighed in the low 720's (721-723)
Forum: RV Ongoing Maintenance Issues 08-27-2020, 06:19 PM
Replies: 5
Views: 572
Posted By rvbuilder2002
Question is in the RV-12 forum so it is probably...

Question is in the RV-12 forum so it is probably a tip up on an RV-12 ;)
Forum: RV Ongoing Maintenance Issues 08-27-2020, 12:55 PM
Replies: 5
Views: 572
Posted By rvbuilder2002
The most source of squeak is one end or the other...

The most source of squeak is one end or the other of the gas struts.
Put a small amount of spray lube on all 4 points and it will probably stop.
Forum: RV General Discussion/News 08-27-2020, 12:46 PM
Replies: 26
Views: 3,281
Posted By rvbuilder2002
The standard Van's Aircraft position is that the...

The standard Van's Aircraft position is that the baggage bulkhead panel is structural on all models and should be installed, with all fasteners, for flight.
Forum: RV-9/9A 08-26-2020, 02:37 PM
Replies: 19
Views: 1,971
Posted By rvbuilder2002
A valid comparison of the two models requires...

A valid comparison of the two models requires making all things equal other than the airframe.

The web site performance specs show the RV-7A to have a 3 MPH speed advantage over the RV-9A, at 8000'...
Forum: Traditional Aircraft Engines 08-26-2020, 09:12 AM
Replies: 4
Views: 716
Posted By rvbuilder2002
It is the number of degrees that the ignition...

It is the number of degrees that the ignition timing gets mechanically retarded while cranking the engine to start.

Lycoming specifies a specific lag (retard) angle for all of its engines Usually on...
Forum: GPS 08-25-2020, 08:32 PM
Replies: 22
Views: 1,410
Posted By rvbuilder2002
If you consider painting a glare shield black to...

If you consider painting a glare shield black to minimize reflection on the wind screen "masking the problem" then I guess you would be correct, but I don't see painting the ant. being any different.
Forum: Flight Testing 08-25-2020, 08:28 PM
Replies: 30
Views: 1,848
Posted By rvbuilder2002
If he goes through the process of applying for...

If he goes through the process of applying for and receiving approval for dual pilot flight testing.

I suggest the OP reads the Advisory...
Forum: GPS 08-25-2020, 02:03 PM
Replies: 22
Views: 1,410
Posted By rvbuilder2002
There is no reflection in the wind screen problem...

There is no reflection in the wind screen problem if the glare shield is black and you paint the ant. flat black.

I know the antennas always say "do not paint" on them, but flat black has no...
Forum: GPS 08-25-2020, 12:38 PM
Replies: 22
Views: 1,410
Posted By rvbuilder2002
All E-AB and E-LSA RV-12's have the GPS ant....

All E-AB and E-LSA RV-12's have the GPS ant. mounted on a shelf fwd of the firewall (it is mounted just below the level of the cowling so that there is nothing to cause any angular blockage of...
Forum: RV-14 08-25-2020, 11:27 AM
Replies: 4
Views: 769
Posted By rvbuilder2002
It doesn't require any special alignment...

It doesn't require any special alignment procedure.... 3 people shouldn't be needed. It can easily be done solo but two people will make it a bit easier.

Wing laying flat on a padded table is...
Forum: RV-6/6A 08-25-2020, 10:43 AM
Replies: 18
Views: 1,218
Posted By rvbuilder2002
I assume increased one size means One size...

I assume increased one size means One size thicker in wall thickness??? This is a very important change to make if doing this modification.

If not done, the torsional load induced on the long...
Forum: RV-6/6A 08-25-2020, 08:21 AM
Replies: 18
Views: 1,218
Posted By rvbuilder2002
The weight delta isn't huge, but the manual flaps...

The weight delta isn't huge, but the manual flaps are slightly lighter.
Forum: RV Building Tips/Techniques 08-24-2020, 09:28 AM
Replies: 25
Views: 5,667
Posted By rvbuilder2002
I think it would be a good idea if a moderator...

I think it would be a good idea if a moderator would make this thread a Sticky in the RV Building Tips/Techniques forum, so that the countersinking depth for dimples info is easy to find in the...
Forum: RV Building Tips/Techniques 08-24-2020, 09:14 AM
Replies: 25
Views: 5,667
Posted By rvbuilder2002
No In fact, in this type of situation I would...

No

In fact, in this type of situation I would say that it is more important to follow the recommendation of .007 deep for a strong rivet joint with it being a control surface trailing edge.

My...
Forum: Flight Testing 08-24-2020, 08:32 AM
Replies: 18
Views: 1,945
Posted By rvbuilder2002
While I agree with you that making assumptions is...

While I agree with you that making assumptions is not appropriate, I also understand why they were made.

A lot of us that have been in this business for a while (building experimental category...
Forum: RV-12/RV-12iS 08-24-2020, 08:10 AM
Replies: 19
Views: 2,880
Posted By rvbuilder2002
That would be a good reason to just use the new...

That would be a good reason to just use the new design torsional springs that are the current standard part. No experimenting or guess work required.
Forum: RV General Discussion/News 08-23-2020, 03:19 PM
Replies: 1
Views: 388
Posted By rvbuilder2002
The same tail wheel that comes in the other kits...

The same tail wheel that comes in the other kits is supplied in the RV 14 kit.
Forum: RV General Discussion/News 08-19-2020, 08:36 AM
Replies: 11
Views: 1,226
Posted By rvbuilder2002
And it doesn't have to say experimental on the...

And it doesn't have to say experimental on the outside.... the reg requires that the 2" high EXPERIMENTAL placard be visible at the entrance to the aircraft.

On the outside adjacent to the door or...
Forum: RV-12/RV-12iS 08-18-2020, 03:17 PM
Replies: 7
Views: 579
Posted By rvbuilder2002
Major structure like landing gear is typically a...

Major structure like landing gear is typically a near net fit. It is on the RV-12 as well.
Shims is the only practical way.

And, yes the shims are aluminum machined very close to a knife edge on...
Forum: RV-12/RV-12iS 08-17-2020, 03:17 PM
Replies: 5
Views: 860
Posted By rvbuilder2002
I don't think that is a fair assumption to make...

I don't think that is a fair assumption to make when you haven't done it......

Of the 4 teen build projects completed in our local program, I think at least 2 of them were purchased locally and...
Forum: RV General Discussion/News 08-16-2020, 11:32 PM
Replies: 8
Views: 948
Posted By rvbuilder2002
The AEX trailing edge wedge does have a squared...

The AEX trailing edge wedge does have a squared off (though very thin) aft trailing edge.

I was thinking your comment was regarding thick squared off trailing edges being less desirable for low drag.
Forum: RV-6/6A 08-16-2020, 08:46 PM
Replies: 8
Views: 1,072
Posted By rvbuilder2002
It sounds like this would be on an RV-6 that is...

It sounds like this would be on an RV-6 that is already flying and that you did not build?

The first thing you should do is get a copy of the RV-6 plans and look at the differences between the two...
Forum: RV General Discussion/News 08-16-2020, 08:20 PM
Replies: 8
Views: 948
Posted By rvbuilder2002
I would assume that Steve's post has a typo and...

I would assume that Steve's post has a typo and that what he might have meant to say was - For low drag, you really wouldn't like to have square-edged trailing edge. Purple adjustments made by...
Forum: RV-9/9A 08-15-2020, 08:14 PM
Replies: 22
Views: 3,013
Posted By rvbuilder2002
I imagine some of the other RV-9 owners will post...

I imagine some of the other RV-9 owners will post and mention that they get similar TAS at far lower fuel flow.

Makes me wonder if the owner is timid with their leaning.
Forum: RV General Discussion/News 08-14-2020, 09:05 PM
Replies: 20
Views: 2,558
Posted By rvbuilder2002
It does take some practice and some retraining of...

It does take some practice and some retraining of the muscle memory because you have to pivot the tug handle the opposite direction that you would with a regular tow bar.
The key is to primarily...
Forum: RV-12/RV-12iS 08-14-2020, 03:49 PM
Replies: 14
Views: 2,030
Posted By rvbuilder2002
Yup. The product is referred to as a wash...

Yup. The product is referred to as a wash primer. It is not a high solids primer that will cover / hide the surface like most epoxy primers.
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