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Search: Posts Made By: FinnFlyer
Forum: Glass Cockpit Today, 12:07 PM
Replies: 22
Views: 2,551
Posted By FinnFlyer
DIY - Test install

I read the threads on adding a DIY port for AOA input to EFIS (e.g. Dynon), some using a pop rivet under the wing, some a inflation needle.

Since I'm not eager to drill extra holes in the wing skin,...
Forum: RV-4 12-12-2018, 08:25 PM
Replies: 6
Views: 246
Posted By FinnFlyer
Oh, good. I do intend to add AD3- flush rivets in...

Oh, good. I do intend to add AD3- flush rivets in between original 2" spaced holes, countersinking side skins.

So now the question would be:
Would 1/8" oops rivets overall be stronger (side and top...
Forum: RV General Discussion/News 12-12-2018, 07:46 PM
Replies: 3
Views: 571
Posted By FinnFlyer
Need more active fliers at 9FL5 (Shady Bend...

Need more active fliers at 9FL5 (Shady Bend Airpark). There are a couple of lots for sale on the runway.

Of course, being only 1/4 mile from the Suwannee, we do flood from time to time. Last one...
Forum: RV-4 12-12-2018, 12:18 PM
Replies: 6
Views: 246
Posted By FinnFlyer
Do what Mel says?

No answer from Vans yet.

So I did a more thorough search and came across this thread:
http://www.vansairforce.com/community/showthread.php?t=19092&highlight=countersink+longerons

Mel...
Forum: RV-4 12-11-2018, 09:04 AM
Replies: 6
Views: 246
Posted By FinnFlyer
You mean the small head ones? OK, I sent an...

You mean the small head ones?

OK, I sent an e-mail to Vans.

Finn
Forum: RV-4 12-10-2018, 11:33 AM
Replies: 5
Views: 419
Posted By FinnFlyer
Thanks Vac, but too late. I already manufactured...

Thanks Vac,

but too late. I already manufactured it and riveted it in place of the original angles. I was able to duplicate the holes in the old angles using paper templates.

But you are right....
Forum: RV-4 12-10-2018, 11:28 AM
Replies: 6
Views: 346
Posted By FinnFlyer
Shim

Actually if it's only 1/16" then a 0.032 shim on each side may be the way to go.

Finn
Forum: RV-4 12-10-2018, 07:13 AM
Replies: 5
Views: 419
Posted By FinnFlyer
Reply from Dynon

Reply from Dynon confirms the 0.75" distance between 1/4" pivot bolt hole and closest 3/16" servo mount hole.

Overall length 7.5".

Finn
Forum: RV General Discussion/News 12-10-2018, 06:30 AM
Replies: 15
Views: 905
Posted By FinnFlyer
Does Safelite use spacers on your windshield....?

No, but then car windshield glass has a significantly lower expansion rate than plexiglass.

Finn
Forum: RV-4 12-10-2018, 06:19 AM
Replies: 6
Views: 246
Posted By FinnFlyer
Countersinking side skins for F-425 top rear skin?

Previous builder has riveted the fuselage side skins to the longerons and left holes open for rivets common to top and side skins. However, longerons are not countersunk nor are the side skins...
Forum: RV-4 12-10-2018, 06:04 AM
Replies: 6
Views: 346
Posted By FinnFlyer
Seems to be very common to have to do a vertical...

Seems to be very common to have to do a vertical cut in the canopy frame "bulkhead" and splice it. It's mentioned in the...
Forum: RV-4 11-30-2018, 11:58 AM
Replies: 0
Views: 190
Posted By FinnFlyer
Trimming F-419 to allow elevator up travel

I'll already extended the square hole in F-419 deck back 5/16" (from 3 7/8" as given on dwg 30) to 4 3/16" and still only have 22 degree elevator up travel ( think I started with 17 or 18). The tip...
Forum: RV General Discussion/News 11-25-2018, 09:49 AM
Replies: 4
Views: 726
Posted By FinnFlyer
From Vans: The industry part number that is what...

From Vans:

The industry part number that is what we call the LP4-3 rivet is “GSMD41-43APG” and the CS4-4 is “GSMC42-44APG”.

Finn
Forum: RV-8/8A 11-24-2018, 12:33 PM
Replies: 5
Views: 371
Posted By FinnFlyer
Thanks Mickey. That helps. So it looks like the...

Thanks Mickey. That helps.

So it looks like the distance from pivot bolt to first servo mount bolt is not critical.

Finn
Forum: RV-8/8A 11-24-2018, 08:56 AM
Replies: 5
Views: 371
Posted By FinnFlyer
Thank you Mickey. From your photos it looks like...

Thank you Mickey.

From your photos it looks like you mounted the servo further back than what I extrapolated from Dynon's drawing (3/4"). More like 2" between forward servo mount hole to bellcrank...
Forum: RV-8/8A 11-23-2018, 08:33 PM
Replies: 5
Views: 371
Posted By FinnFlyer
Pitch servo mount angle dimensions

Reposting this on RV-8 forum in hope of confirmation of the 3/4" dimension.

I'm ready to fabricate the pitch servo mount angles from 1x1x0.125 angle stock.

If anyone has those angles (perhaps not...
Forum: Glass Cockpit 11-22-2018, 10:42 AM
Replies: 6
Views: 336
Posted By FinnFlyer
Does that allow NAV and GPS being shown on HSI at...

Does that allow NAV and GPS being shown on HSI at the same time (yellow and magenta)?

Finn
Forum: Glass Cockpit 11-21-2018, 02:56 PM
Replies: 6
Views: 336
Posted By FinnFlyer
Dynon stallation guide

Yes, looks like you'll need a switch (Page 2-2).

I thought I'd seen an option for using both SL30 and GPS input. Here it is:

"Connect the GPS or SL30 transmit line into pin 22 on the DB25...
Forum: RV General Discussion/News 11-20-2018, 08:10 AM
Replies: 8
Views: 545
Posted By FinnFlyer
Just post the source and contact info

Why don't you just post the info here?

Finn
Forum: RV-4 11-14-2018, 01:32 PM
Replies: 5
Views: 419
Posted By FinnFlyer
I already have the rodend bearings, rod, bolts,...

I already have the rodend bearings, rod, bolts, washers, etc. so not buying the kit.

I want to drill the servo attach holes before I install the angles, so when/if I get the servo I can just bolt it...
Forum: RV-4 11-14-2018, 07:59 AM
Replies: 5
Views: 419
Posted By FinnFlyer
Pitch servo mount angle dimensions

I'm ready to fabricate the pitch servo mount angles from 1x1x0.125 angle stock.

If anyone has those angles (perhaps not yet installed) please confirm these dimensions (extrapolated from 3.5" servo...
Forum: ADS-B 11-13-2018, 07:20 AM
Replies: 9
Views: 839
Posted By FinnFlyer
Trying to delete this response. I now know that...

Trying to delete this response.
I now know that an ADS B-Out "transponder" transmits by itself (uninterrogated) every second.

Finn
Forum: RV-6/6A 11-10-2018, 03:59 PM
Replies: 17
Views: 2,017
Posted By FinnFlyer
From...

From http://vansaircraft.com/pdf/Wing_%20Incidence.pdf

(search for "incidence" on Van's web site)

"3: If there is a sweep or triangulation problem STOP. The common reasons are:
A: The rear spar...
Forum: RV-4 11-08-2018, 06:07 PM
Replies: 7
Views: 806
Posted By FinnFlyer
Don't drill and rivet piano hinge to flap

May I recommend that you don't drill and rivet the piano hinge to the flap until you have (test) mounted the wings, set the wing incidence and drilled the rear wing spar attach hole.

I got away with...
Forum: RV General Discussion/News 11-08-2018, 08:09 AM
Replies: 4
Views: 439
Posted By FinnFlyer
Odd. They are still selling the D10A and...

Odd. They are still selling the D10A and D100.
The D100 is now sold only with super bright display.

$250 to $450 is quite a jump.

I decided to go with Dynon in the RV-4 I'm building because I have...
Forum: RV General Discussion/News 11-07-2018, 06:47 PM
Replies: 4
Views: 439
Posted By FinnFlyer
Are you sure that doesn't include upgrade to...

Are you sure that doesn't include upgrade to super bright?

I thought the flat rate repair cost was $250.

That's what I paid when the power/charging circuit died in my D-10A.
Dynon insisted that if...
Forum: RV-4 11-07-2018, 02:16 PM
Replies: 4
Views: 396
Posted By FinnFlyer
Thank you Russ. That's the kind of input I was...

Thank you Russ.

That's the kind of input I was looking for.

Finn
Forum: RV-4 11-07-2018, 02:13 PM
Replies: 10
Views: 996
Posted By FinnFlyer
Hi Charlie, No, I wouldn't mind storing...

Hi Charlie,

No, I wouldn't mind storing them.
Are you the "someone" who's going to pick them up? :)

Finn
Forum: RV Ongoing Maintenance Issues 11-07-2018, 08:09 AM
Replies: 19
Views: 1,809
Posted By FinnFlyer
Still flexible not a good test

I had just had my annual condition inspection done by an A&P. He said the fuel hoses still felt good (steel braided rubber) -- flexible.

Turning on fuel pump for the next flight I smelled gas.
I...
Forum: RV-4 11-07-2018, 07:58 AM
Replies: 4
Views: 396
Posted By FinnFlyer
Why electric?

Hans, I do miss the manual flaps in the RV-3B I'm now flying. In my old RV-3 I could dump flaps in a second on touchdown and stay on the ground even in gusty conditions.

Two things make me lean...
Forum: RV-4 11-06-2018, 06:13 PM
Replies: 4
Views: 396
Posted By FinnFlyer
Wd-406 flap actuator position

I guess I'll go with electrical flaps.

I started making left flap pushrod hole in fuselage. Fits in flap up position.

Is there any reason I should not move the F-445 blocks and actuator as far aft...
Forum: RV-4 11-05-2018, 02:54 PM
Replies: 10
Views: 996
Posted By FinnFlyer
Would be worth something to someone who had not...

Would be worth something to someone who had not yet drilled inboard main skins to main spar webs.

Someone working on an old kit or not yet ordered wing kit from Vans.

Finn
Forum: RV-4 11-01-2018, 10:01 AM
Replies: 5
Views: 659
Posted By FinnFlyer
Fuel and vent line grommets

Van's specify (DWG 39) AN931 grommets. They require 3/4" and 1" holes.
Why not use SB-437 bushings?

Or, is it actually possible to install (push in over the skin) the grommets with the vent/fuel...
Forum: RV-4 10-31-2018, 09:15 AM
Replies: 6
Views: 537
Posted By FinnFlyer
Thanks for the tip on bending angle. However, as...

Thanks for the tip on bending angle. However, as much as I tried, I could not get the 3/16" angle to bend. Fortunately a friend let me use his mill to make it fit. (Tapered the 1" fuselage side...
Forum: RV-4 10-30-2018, 07:28 PM
Replies: 6
Views: 537
Posted By FinnFlyer
Saving weight

Thank you Bill.

Only advantage is less work compared to cutting/shaping the supplied 2 x 2 1/2 x 3/16 angle and lower weight. We spend significant work on cutting lightening holes in flap spars,...
Forum: RV-4 10-30-2018, 08:44 AM
Replies: 6
Views: 537
Posted By FinnFlyer
Thanks for the reply. I'm aware of the slot and...

Thanks for the reply.

I'm aware of the slot and clearing the root fairing.
Thing is that the tip of F-405 is less than 7/8" from the fuselage. So a 1x2" angle would be quite adequate to ensure 1/2"...
Forum: RV-4 10-29-2018, 12:04 PM
Replies: 6
Views: 537
Posted By FinnFlyer
F-463 and T-405

Can anyone give a valid engineering reason why those tank/fuselage angles:
1) Are 3/16" thick rather than 1/8"?
2) Has a 1" hole edge distance for a 1/4" bolt?

Started to make the F-463 and it will...
Forum: RV-8/8A 10-28-2018, 05:08 PM
Replies: 13
Views: 1,445
Posted By FinnFlyer
I already riveted the elevator bell crank angles...

I already riveted the elevator bell crank angles in my RV-4 but am now considering replacing them with angles required for the Dynon servo before riveting the fuselage rear top skin on. Does anyone...
Forum: RV-4 10-27-2018, 01:16 PM
Replies: 3
Views: 508
Posted By FinnFlyer
DWG 39. R6, R7 and R8. Also page 8-10 of the...

DWG 39.

R6, R7 and R8.

Also page 8-10 of the manual.

I don't think I've seen a torque spec, but not much -- should be able to relatively easily tear our of the slot in case of wing being pulled...
Forum: RV-4 10-27-2018, 09:40 AM
Replies: 11
Views: 1,013
Posted By FinnFlyer
Riviting LE skins to ribs

The LE assembly is not "built" in the cradle. The LE skin is drilled to the LE ribs while the LE ribs are cleco'd and temp bolted to the main spar, the LE skin strapped to the ribs. Then remove the...
Forum: RV-4 10-24-2018, 09:17 AM
Replies: 15
Views: 2,252
Posted By FinnFlyer
Had the same question. See DWG 19 for rivet...

Had the same question.

See DWG 19 for rivet sizes.

One important thing (countersinking or dimpling spar holes):
Me: "I don't understand the rivet size (length) call outs.

Using a -3.5 to rivet...
Forum: RV-4 10-23-2018, 05:31 PM
Replies: 11
Views: 1,013
Posted By FinnFlyer
The leading edge skin needs to be riveted to the...

The leading edge skin needs to be riveted to the leading edge ribs off the main wing spar (in a cradle).
Then you mount the leading edge assembly to the wing/spar and put in the bolts and rivet the...
Forum: RV General Discussion/News 10-22-2018, 09:02 AM
Replies: 47
Views: 4,590
Posted By FinnFlyer
Aircraft Spruce $2,695 However: "Appareo just...

Aircraft Spruce $2,695
However:
"Appareo just called me and there is an issue at the moment with our stock on the ESG. Since the FAA rebate had previously expired they removed their TSO stamping from...
Forum: RV-4 10-01-2018, 09:47 AM
Replies: 41
Views: 6,643
Posted By FinnFlyer
Sequence in my RV-3B: Canopy opened 90 degrees,...

Sequence in my RV-3B: Canopy opened 90 degrees, held by strap, then strap broke and opened 180 degrees and rested on right wing. I remembered "fly the airplane" and added throttle to safely make it...
Forum: RV-3 10-01-2018, 09:30 AM
Replies: 12
Views: 2,696
Posted By FinnFlyer
Probably more of an anecdote than helpful...

Probably more of an anecdote than helpful information. But because of having the lower inboard skin peeled back for the CN-2 mod, I decided to make truly integral wing tanks. Using epoxy, I closed...
Forum: RV-3 09-24-2018, 10:00 PM
Replies: 5
Views: 745
Posted By FinnFlyer
You should be able to cut holes in the top back...

You should be able to cut holes in the top back skin behind the seat back bulkhead (same principle as cutting flap actuator holes) and feed the two steel tubes through them and then weld them...
Forum: RV-4 09-08-2018, 07:40 AM
Replies: 0
Views: 561
Posted By FinnFlyer
Canopy uplift

The RV-4 canopy acts as an airfoil. I think I saw someone having calculated the uplift of the canopy, presumably at VNE. Now I can't find that post.

I'm trying to design brackets to allow for second...
Forum: RV-4 09-03-2018, 06:08 PM
Replies: 41
Views: 6,643
Posted By FinnFlyer
I think you'll find consensus is: improperly...

I think you'll find consensus is: improperly latched. Not fully engaged in the first place, or handle inadvertently bumped closer to open.

Of course no one is going to admit to that :)

And...
Forum: RV Building Tips/Techniques 08-31-2018, 11:20 AM
Replies: 14
Views: 2,281
Posted By FinnFlyer
Hi Mike! I'm close to having to make the...

Hi Mike!

I'm close to having to make the decision whether to use fasteners or adhesive.

How many years and hours on the RV-4 now?
Any signs of cracks, grazing or other adverse effects on the...
Forum: RV-4 08-30-2018, 07:28 PM
Replies: 3
Views: 686
Posted By FinnFlyer
The spacers next to rod-end bearing in the A-407...

The spacers next to rod-end bearing in the A-407 bracket will also influence left-right aileron deflection differences. Of course trying to adjust those spacers may result in having to enlarge the...
Forum: RV-3 08-30-2018, 07:07 PM
Replies: 12
Views: 2,696
Posted By FinnFlyer
Have you considered getting the RV-3B wings from...

Have you considered getting the RV-3B wings from Vans?
I think there's even a quick-build option. Then you "only " have to drill out and install the matched bulkheads in the fuselage.
I did the...
Forum: RV-4 08-28-2018, 07:01 PM
Replies: 12
Views: 1,484
Posted By FinnFlyer
Hi Axel. Do you already have the Dynafocal engine...

Hi Axel.
Do you already have the Dynafocal engine mount? I'm asking because I have one and am about to chop it up to fit a Mazda rotary (Renesis). So it doesn't matter if I start with a conical or...
Forum: RV-4 08-25-2018, 10:48 AM
Replies: 10
Views: 848
Posted By FinnFlyer
Right. Hard to retrofit. In addition to what's...

Right. Hard to retrofit. In addition to what's behind your panel, you'll also have to consider the canopy 3/4" square bow that would then hide more of the panel and who wants to redo the canopy...
Forum: RV-4 08-25-2018, 10:36 AM
Replies: 10
Views: 848
Posted By FinnFlyer
In my case that would mean tilting the firewall...

In my case that would mean tilting the firewall top forward 1", probably too much. So I have both trimming of forward F-421 edge and cowling to look forward to :(

If my forward fuse side skins...
Forum: RV-4 08-24-2018, 01:33 PM
Replies: 10
Views: 848
Posted By FinnFlyer
Thanks Mark! So don't trim the rear edge of...

Thanks Mark!

So don't trim the rear edge of F-421?

As far as I can see, I do need to trim it at the firewall and along sides.

Seems that per plans the firewall is...
Forum: RV-4 08-24-2018, 09:03 AM
Replies: 10
Views: 848
Posted By FinnFlyer
Thank you Hans. Actually the slope of the...

Thank you Hans.

Actually the slope of the longerons are about 3 degrees (1 5/8" over 28 9/16") according to plans.

From your second picture I see that your canopy forward fairing do extend out...
Forum: RV-4 08-23-2018, 08:56 PM
Replies: 10
Views: 848
Posted By FinnFlyer
F-421 and panel tilt

Trying to fit F-421 (forward top skin). I'm having a hard time figuring out whether to cut rear edge of F-421 in a shallow circle to make it fit to the 7 degree slant (1" over 7 7/8") per dwg...
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