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Search: Posts Made By: Piper J3
Forum: RV-12/RV-12iS Yesterday, 05:21 PM
Replies: 197
Views: 57,989
Posted By Piper J3
I wonder if this is first RV-12 nose gear to...

I wonder if this is first RV-12 nose gear to break in that location. The new revised strut has a secondary tube welded inside at the radius bend leading into the lower mounting flange. Wouldn't...
Forum: RV-12/RV-12iS Yesterday, 02:19 PM
Replies: 197
Views: 57,989
Posted By Piper J3
Can you share a photo of the broken part?

Can you share a photo of the broken part?
Forum: RV-12/RV-12iS 01-23-2022, 09:38 AM
Replies: 20
Views: 1,670
Posted By Piper J3
Carbon Fiber Rod is pretty stiff and won't...

Carbon Fiber Rod is pretty stiff and won't negotiate the bend in the filler neck very easily. I made a measuring stick from 3/16” wooden dowel and filed small notches at the gallon marks. Tip of...
Forum: RV-12/RV-12iS 01-21-2022, 01:55 PM
Replies: 3
Views: 487
Posted By Piper J3
My heart goes out to you and the guy in San...

My heart goes out to you and the guy in San Diego.

20F here in Northern Ohio today with 1F forecast for tonight...
Forum: RV-12/RV-12iS 01-20-2022, 01:22 PM
Replies: 11
Views: 848
Posted By Piper J3
Correct. Even 55 KIAS stabilized power-off...

Correct. Even 55 KIAS stabilized power-off approach... the 12 still retains lots of energy in the flair. Air gets compressed in ground effect especially with low wing airplane...

Here is video...
Forum: RV-12/RV-12iS 01-20-2022, 01:07 PM
Replies: 12
Views: 1,131
Posted By Piper J3
The “friction” is actually back-driving the servo...

The “friction” is actually back-driving the servo motor through a series of reduction gears. Back-driving a gear reducer is always a tough chore because mechanical advantage is in the wrong...
Forum: RV-12/RV-12iS 01-20-2022, 07:13 AM
Replies: 11
Views: 848
Posted By Piper J3
I must be missing something.... Power needed for...

I must be missing something.... Power needed for gentle touchdown? For a RV-12?
Forum: RV-12/RV-12iS 01-18-2022, 06:58 PM
Replies: 11
Views: 848
Posted By Piper J3
I have seal on top side and around "D" section...

I have seal on top side and around "D" section nose. I leave bottom open to allow wing to vent. I have witnessed water dripping from airplane in the hanger when atmospheric conditions in the spring...
Forum: RV-12/RV-12iS 01-17-2022, 02:27 AM
Replies: 7
Views: 888
Posted By Piper J3
3.5 - 4 GPH is not realistic for 912ULS when...

3.5 - 4 GPH is not realistic for 912ULS when operated at cruise power settings. I question your results and wonder if your testing method is accurate and repeatable.

Even the Electronic Fuel...
Forum: RV-12/RV-12iS 01-14-2022, 07:54 PM
Replies: 3
Views: 487
Posted By Piper J3
Think you have enough hoses? Manifold crossover...

Think you have enough hoses? Manifold crossover tube looks extra large diameter...
Forum: RV-12/RV-12iS 01-11-2022, 11:25 AM
Replies: 23
Views: 4,225
Posted By Piper J3
Actually, the filter bypasses because oil...

Actually, the filter bypasses because oil viscosity is too high (thick) at low temperatures. The bypass feature is to protect the pleated filter element - it would rupture if oil can't flow at...
Forum: RV-12/RV-12iS 01-11-2022, 11:18 AM
Replies: 23
Views: 4,225
Posted By Piper J3
The 122F warm up for oil is necessary because...

The 122F warm up for oil is necessary because crankcase scavenging is not adequate until oil thins in viscosity. RPM is limited during warm up so oil pump volume does not exceed capacity of...
Forum: RV-12/RV-12iS 01-10-2022, 04:48 AM
Replies: 23
Views: 4,225
Posted By Piper J3
Some oil filters (I don’t know about Rotax) have...

Some oil filters (I don’t know about Rotax) have pleated paper element coated with a chemical base that neutralizes the acids produced in an internal combustion engine. Might be advantage to using...
Forum: RV-12/RV-12iS 01-09-2022, 08:56 PM
Replies: 14
Views: 1,396
Posted By Piper J3
It's always something Gilda...

It's always something Gilda...
Forum: RV-12/RV-12iS 01-08-2022, 02:57 AM
Replies: 15
Views: 1,754
Posted By Piper J3
An “Equipment List” should accompany the W&B. ...

An “Equipment List” should accompany the W&B. The Equipment List is a reference that specifies how the airplane was configured during latest W&B. if equipment is added or removed the list needs to...
Forum: RV-12/RV-12iS 12-29-2021, 06:18 PM
Replies: 8
Views: 1,066
Posted By Piper J3
It's always something Gilda....

It's always something Gilda....
Forum: RV-12/RV-12iS 12-29-2021, 09:16 AM
Replies: 15
Views: 1,754
Posted By Piper J3
What Mel said ^^^^ I have weighed my airplane...

What Mel said ^^^^

I have weighed my airplane several times over five year period. I've used two different sets of scales, calculated W&B, and included same with current equipment list in the POH.
Forum: RV-12/RV-12iS 12-29-2021, 03:27 AM
Replies: 8
Views: 1,066
Posted By Piper J3
Understatement of the year...

Understatement of the year...
Forum: RV-12/RV-12iS 12-28-2021, 04:55 PM
Replies: 16
Views: 2,016
Posted By Piper J3
This SB for RV-10. You are posting in RV-12...

This SB for RV-10. You are posting in RV-12 thread...
Forum: RV-12/RV-12iS 12-28-2021, 09:37 AM
Replies: 12
Views: 1,096
Posted By Piper J3
No, my RV-12 is early SN with oil cooler located...

No, my RV-12 is early SN with oil cooler located close to front of muffler. If anything, I have to watch oil temps in summer. On hottest days, I will see 240F (lower yellow arc) in extended climb. ...
Forum: RV-12/RV-12iS 12-27-2021, 03:41 PM
Replies: 12
Views: 1,096
Posted By Piper J3
Why oil thermostat in So. California?

Why oil thermostat in So. California?
Forum: RV-12/RV-12iS 12-24-2021, 11:01 AM
Replies: 26
Views: 3,364
Posted By Piper J3
Try putting the Flightcom 403 Intercom into Pilot...

Try putting the Flightcom 403 Intercom into Pilot Isolate and see if static is any better.
Forum: RV General Discussion/News 12-22-2021, 07:37 AM
Replies: 23
Views: 2,129
Posted By Piper J3
See.... ...

See.... https://vansairforce.net/community/showthread.php?t=199694&highlight=tpm
Forum: RV-12/RV-12iS 12-21-2021, 11:29 PM
Replies: 26
Views: 3,364
Posted By Piper J3
You might check antenna connection on back of...

You might check antenna connection on back of radio tray for SL40. The 90 degree connector is fastened to the tray with two screws that can come loose – happened to me. To do thorough inspection,...
Forum: RV-12/RV-12iS 12-19-2021, 07:52 PM
Replies: 3
Views: 808
Posted By Piper J3
For operations up-north, I would add an engine...

For operations up-north, I would add an engine pre-heater, a set of three (3) different baffles for the oil cooler to maintain 200+F oil temp, and the sliding-baffle for the coolant radiator. 10-20F...
Forum: RV-12/RV-12iS 12-17-2021, 05:01 PM
Replies: 13
Views: 1,790
Posted By Piper J3
For a long time, British cars used Lucas...

For a long time, British cars used Lucas Electrics, also known as the Prince of Darkness. I owned two each – Triumph and MG and it was a real education…
Forum: RV-12/RV-12iS 12-17-2021, 01:45 PM
Replies: 3
Views: 785
Posted By Piper J3
If I may ask... What is the problem with...

If I may ask... What is the problem with original exhaust system?
Forum: RV-12/RV-12iS 12-17-2021, 09:46 AM
Replies: 13
Views: 1,790
Posted By Piper J3
Odyssey battery charger works fine with airplane...

Odyssey battery charger works fine with airplane master switch and avionics turned on. The main battery itself is a filter which cancels any ripple from the battery charger.

Do it all the time....
Forum: RV-12/RV-12iS 12-15-2021, 05:49 PM
Replies: 13
Views: 1,790
Posted By Piper J3
Try tapping on the pump with screwdriver handle. ...

Try tapping on the pump with screwdriver handle. Give it a good thump and I bet it will start working. Facet pump has an oscillating piston with check valves that sometimes gets stuck...
Forum: RV-12/RV-12iS 12-15-2021, 05:40 PM
Replies: 8
Views: 1,397
Posted By Piper J3
He is running 100LL so age of fuel and temp...

He is running 100LL so age of fuel and temp shouldn't be a problem. RV-12 is tightly-cowled engine and he is operating in FLA, so could be vapor lock. I would check carb float weights. No need for...
Forum: RV-12/RV-12iS 12-14-2021, 02:57 PM
Replies: 90
Views: 162,102
Posted By Piper J3
Two friends flying loose formation last Sunday. ...

Two friends flying loose formation last Sunday. Camera plane was a Cessna that asked for them to slow up so he could catch them... :D
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Forum: RV-12/RV-12iS 12-11-2021, 02:47 PM
Replies: 5
Views: 1,349
Posted By Piper J3
Exactly. My guess is units returned with new...

Exactly. My guess is units returned with new motherboard and no mention of G-switch failure so as not to generate an Airworthiness Directive that would be costly for the manufacturer.

You didn't...
Forum: RV-12/RV-12iS 12-06-2021, 10:31 AM
Replies: 6
Views: 1,035
Posted By Piper J3
They help hold the airplane together... Couldn't...

They help hold the airplane together... Couldn't resist. :D
Forum: RV-12/RV-12iS 12-03-2021, 08:22 PM
Replies: 11
Views: 1,945
Posted By Piper J3
Suggestion... Place airplane on saw horses to...

Suggestion... Place airplane on saw horses to suspend gear and kick front tire and see how much it moves fore / aft.

You might be surprised...
Forum: RV-12/RV-12iS 12-03-2021, 08:20 PM
Replies: 355
Views: 460,697
Posted By Piper J3
Just small technicality... you don't have a yoke....

Just small technicality... you don't have a yoke. RV-12 has side-by-side sticks.
Forum: RV-12/RV-12iS 12-02-2021, 10:44 AM
Replies: 8
Views: 1,581
Posted By Piper J3
Wow, that's pretty wild. I have my wing roots...

Wow, that's pretty wild. I have my wing roots sealed on top and around front "D" section of leading edge. I left bottom open to facilitate drainage and provide a little airflow to prevent moisture...
Forum: RV-12/RV-12iS 11-30-2021, 08:35 AM
Replies: 8
Views: 912
Posted By Piper J3
Might be best to use a reamer...

Might be best to use a reamer...
Forum: Places To Fly...Things to See...Things to Eat 11-29-2021, 03:57 PM
Replies: 105
Views: 50,797
Posted By Piper J3
My RV-12 has been to the islands in western Lake...

My RV-12 has been to the islands in western Lake Erie dozens of times…


Kelly’s
South Bass
Middle Bass
North Bass
Rattle Snake (Pvt)
Forum: RV-12/RV-12iS 11-29-2021, 09:37 AM
Replies: 5
Views: 1,349
Posted By Piper J3
Just a quick observation... I know of two ACK ELT...

Just a quick observation... I know of two ACK ELT failures in recently-built RV-12's. Both failed on the ground after landing. Both sent back to mgr and mainboards replaced with no mention of...
Forum: RV-9/9A 11-25-2021, 06:02 PM
Replies: 47
Views: 4,787
Posted By Piper J3
Not side slip on final... we "crab" into the wind...

Not side slip on final... we "crab" into the wind to kill drift which keeps airplane on centerline - airplane continues to fly true and straight to the relative wind (no cross controls) on final. As...
Forum: RV-9/9A 11-25-2021, 12:44 PM
Replies: 47
Views: 4,787
Posted By Piper J3
I thought I’d jump in here… I fly my RV-12 from...

I thought I’d jump in here… I fly my RV-12 from a private strip 2100’ x 80’ with 30’ tall trees planted on threshold by an irate neighbor. I always use full flaps with a forward slip to scrub speed...
Forum: RV-12/RV-12iS 11-23-2021, 10:11 AM
Replies: 13
Views: 2,328
Posted By Piper J3
This kinda like a vernier throttle for the vent...

This kinda like a vernier throttle for the vent door... :D
Forum: Alternative Engines 11-19-2021, 06:33 PM
Replies: 801
Views: 219,024
Posted By Piper J3
Fuel noticed in the oil test - I wonder how...

Fuel noticed in the oil test - I wonder how common that is? And at what percentages? Timed-EFI with FADEC should prevent raw fuel from washing down cylinder walls. This peaks my interest...
Forum: RV-12/RV-12iS 11-18-2021, 05:44 PM
Replies: 14
Views: 2,789
Posted By Piper J3
Suppose you operate at higher elevations (Denver)...

Suppose you operate at higher elevations (Denver) and want more pitch? Seems like ground adjust would be answer as opposed to a "fixed" fixed pitch prop...
Forum: RV Building Tips/Techniques 11-18-2021, 03:39 PM
Replies: 16
Views: 2,006
Posted By Piper J3
Washer Wrench Set...

Washer Wrench Set...
Forum: RV-12/RV-12iS 11-17-2021, 07:45 AM
Replies: 8
Views: 1,204
Posted By Piper J3
It's always something Gilda... -

It's always something Gilda...
-
Forum: RV-12/RV-12iS 11-17-2021, 07:04 AM
Replies: 8
Views: 1,204
Posted By Piper J3
Randy You have missed the fact that this is a...

Randy

You have missed the fact that this is a legacy RV-12 with Van's supplied circuit board housing fuses, switches, etc.

I'm pretty sure you will not only have to remove the instrument bay cover...
Forum: RV-12/RV-12iS 11-10-2021, 08:42 AM
Replies: 8
Views: 1,364
Posted By Piper J3
Pressure sensors are usually a diaphragm with a...

Pressure sensors are usually a diaphragm with a resistance strain gage which is susceptible to damage from shock, vibration, rough handling. Best practice is to mount remote so engine doesn’t shake...
Forum: RV-12/RV-12iS 11-03-2021, 08:01 PM
Replies: 3
Views: 1,059
Posted By Piper J3
Ducati VR?

Ducati VR?
Forum: RV-12/RV-12iS 11-03-2021, 07:04 PM
Replies: 13
Views: 2,015
Posted By Piper J3
I'll guess... how about 6%? 3%?

I'll guess... how about 6%? 3%?
Forum: RV-12/RV-12iS 11-02-2021, 08:09 AM
Replies: 19
Views: 2,598
Posted By Piper J3
Its possible that a pin got pushed back in the...

Its possible that a pin got pushed back in the D-sub connector. If pin isn't seated well in the plastic housing it can slip when force is applied.
Forum: RV-12/RV-12iS 11-01-2021, 08:08 AM
Replies: 16
Views: 2,516
Posted By Piper J3
Could be resonant or harmonic frequency. Lots of...

Could be resonant or harmonic frequency. Lots of things in motion and playing together - sometimes well / sometimes not.
Forum: RV-12/RV-12iS 10-27-2021, 02:36 PM
Replies: 14
Views: 3,120
Posted By Piper J3
I used Stainless Steel T-Bolt Hose Clamps...

I used Stainless Steel T-Bolt Hose Clamps available at auto part store...
-
Forum: RV-12/RV-12iS 10-27-2021, 02:59 AM
Replies: 87
Views: 29,775
Posted By Piper J3
Set prop pitch to attain ~ 5150 RPM WOT during...

Set prop pitch to attain ~ 5150 RPM WOT during initial climb out. This is the sweet spot that will provide 900ish FPM climb and Van’s spec for 114 KTAS at 5500 RPM. With this pitch, throttle...
Forum: RV-12/RV-12iS 10-26-2021, 06:07 PM
Replies: 4
Views: 1,062
Posted By Piper J3
Might also install Stainless Steel exhaust...

Might also install Stainless Steel exhaust springs - they last a long time...
Forum: RV-12/RV-12iS 10-17-2021, 10:30 PM
Replies: 22
Views: 3,435
Posted By Piper J3
Thought maybe he was Prof. Harold Hill - River...

Thought maybe he was Prof. Harold Hill - River City, Iowa... Graduated Gary Conservatory Class of '05.
Forum: RV-12/RV-12iS 10-17-2021, 11:53 AM
Replies: 22
Views: 3,435
Posted By Piper J3
Harold Hill... Boy's Bands?

Harold Hill... Boy's Bands?
Forum: RV-12/RV-12iS 10-14-2021, 02:07 AM
Replies: 13
Views: 2,309
Posted By Piper J3
VA-110 Flap Knob -

VA-110 Flap Knob
-
Forum: RV-12/RV-12iS 10-12-2021, 08:00 AM
Replies: 13
Views: 2,448
Posted By Piper J3
Take a small piece of sheet cork (maybe 1/8"...

Take a small piece of sheet cork (maybe 1/8" thickness) and place on shop-side of rivet. As you start to squeeze the cork will draw up the assembly before the rivet starts to deform. The cork will...
Forum: RV-12/RV-12iS 10-09-2021, 09:42 AM
Replies: 7
Views: 996
Posted By Piper J3
I guess that's possible on front wheel which has...

I guess that's possible on front wheel which has ball bearings.

Main wheels have tapper roller bearings and nothing can fall out if seal fails. Taper rollers are virtually indestructible.
Forum: RV-12/RV-12iS 10-09-2021, 08:39 AM
Replies: 7
Views: 996
Posted By Piper J3
Explain what you mean "Wheel Bearings went Bad" ...

Explain what you mean "Wheel Bearings went Bad"

How did you diagnose problem?

Very unusual for taper roller bearings to have problem...
Forum: RV-12/RV-12iS 10-07-2021, 03:12 AM
Replies: 18
Views: 2,714
Posted By Piper J3
Expanded Scale for Trim Indicator

I have set up my trim indicator as an expanded scale. Instead of showing the entire range of trim servo, I have set the end points to show only the portion of the trim corresponding to the flight...
Forum: Traditional Aircraft Engines 10-05-2021, 04:44 PM
Replies: 11
Views: 1,469
Posted By Piper J3
Ty-Rap® Thomas & Betts is my choice due to its...

Ty-Rap® Thomas & Betts is my choice due to its exceptional durability, strength, natural nylon, and stainless steel locking mechanism.
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Forum: Places To Fly...Things to See...Things to Eat 10-03-2021, 08:07 AM
Replies: 0
Views: 314
Posted By Piper J3
My Place (3OH7) Cardington, OH Sunday Oct 10

This is the best Fly-in ever...

https://www.facebook.com/MyPlaceFarmAirStripCardingtonOH/
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