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Search: Posts Made By: emsvitil
Forum: Electrical Systems 10-19-2021, 09:02 PM
Replies: 5
Views: 372
Posted By emsvitil
Have you looked up what vehicles that alternator...

Have you looked up what vehicles that alternator goes into, then tried finding the pigtail for those vehicles?

Once you try that, I'd look on rockauto.com
Forum: RV General Discussion/News 10-13-2021, 06:06 PM
Replies: 42
Views: 4,511
Posted By emsvitil
And that's why you set up your red ground beacon...

And that's why you set up your red ground beacon (i.e. aux taxi light) to NOT meet the specs of a legit red beacon................
Forum: RV General Discussion/News 10-11-2021, 06:22 PM
Replies: 42
Views: 4,511
Posted By emsvitil
1. It doesn't have to rotate, it can flash. 2....

1. It doesn't have to rotate, it can flash.

2. I could find nothing in the rules that states you can't distribute the red flashing like you do with strobes, just the 360 degree view and +- 75...
Forum: Electrical Systems 10-08-2021, 03:07 AM
Replies: 28
Views: 2,130
Posted By emsvitil
My thinking process..... 1. You have 2...

My thinking process.....

1. You have 2 alternators, utilize them; don't do a primary / backup.
2. Alternators last longer if they aren't run at full capacity, try not to run above 1/2 capacity...
Forum: Electrical Systems 10-06-2021, 04:28 PM
Replies: 28
Views: 2,130
Posted By emsvitil
Is there a current limiting device (not a fuse or...

Is there a current limiting device (not a fuse or circuit breaker) that limits how much current can be transferred between busses?

Say you have a 30 amp alternator on the vacuum pad suppling bus...
Forum: Electrical Systems 10-05-2021, 10:37 PM
Replies: 28
Views: 2,130
Posted By emsvitil
rapid_ascent The writing in your attachment is...

rapid_ascent



The writing in your attachment is fuzzy (at least for me) for some reason.........
Forum: Electronic Ignition Systems 09-28-2021, 11:21 PM
Replies: 11
Views: 1,222
Posted By emsvitil
If the socket cap bolt goes all the way thru, you...

If the socket cap bolt goes all the way thru, you could add a jam-nut (with locktite) too....

and drill the jam nut and bolt for a cotterpin
Forum: Electronic Ignition Systems 09-28-2021, 07:21 PM
Replies: 11
Views: 1,222
Posted By emsvitil
Is there a lock washer under the socket cap?

Is there a lock washer under the socket cap?
Forum: RV-12/RV-12iS 09-28-2021, 05:00 PM
Replies: 30
Views: 4,229
Posted By emsvitil
It's possible the noises were there...

It's possible the noises were there before...........

It's just that he really started listening because he ran the rpm up and is being ultra sensitive to any noise he didn't think was there before.
Forum: RV Photo/Video URLs 09-24-2021, 03:51 PM
Replies: 18
Views: 2,863
Posted By emsvitil
I was wondering if you did anything to increase...

I was wondering if you did anything to increase flutter margins...
Forum: RV General Discussion/News 09-24-2021, 02:14 AM
Replies: 12
Views: 1,172
Posted By emsvitil
Don't have a plane............. Wouldn't lubing...

Don't have a plane.............

Wouldn't lubing the cable be a maintenance item?


I know I feel a big difference after lubing my motorcycle clutch cable.......
Forum: RV Photo/Video URLs 09-23-2021, 09:34 PM
Replies: 18
Views: 2,863
Posted By emsvitil
What modifications are made to the plane so you...

What modifications are made to the plane so you can race it?
Forum: Safety 09-22-2021, 05:08 PM
Replies: 36
Views: 2,408
Posted By emsvitil
Search for 'stick-on bifocals' You can get...

Search for

'stick-on bifocals'


You can get different strengths, put them where you want and cut them to size.
Forum: RV General Discussion/News 09-17-2021, 08:46 PM
Replies: 30
Views: 3,535
Posted By emsvitil
I just leave each bottle drain into the engine...

I just leave each bottle drain into the engine for about 5 minutes.......

After 5 minutes upside down draining into the engine, how much more oil are you going to get out of a bottle?
Forum: RV General Discussion/News 09-17-2021, 06:30 PM
Replies: 119
Views: 18,081
Posted By emsvitil
Does someone have a 10 minute executive summary...

Does someone have a 10 minute executive summary of the 1 hour 25 minute podcast?
Forum: Alternative Engines 09-14-2021, 06:17 AM
Replies: 771
Views: 199,829
Posted By emsvitil
It's probably buried in this thread, but 1. ...

It's probably buried in this thread, but

1. What kind of gear oil?
2. Oil cooler for gear box?
3. Is it splash or pumped gearbox oil?
Forum: RV General Discussion/News 09-13-2021, 05:49 PM
Replies: 12
Views: 975
Posted By emsvitil
Mine always seem to shrink in volume (skinnier...

Mine always seem to shrink in volume (skinnier belt), but gain in length........
Forum: RV General Discussion/News 09-12-2021, 02:03 AM
Replies: 12
Views: 1,286
Posted By emsvitil
Rv8ch, What's the minimum amount you would need...

Rv8ch,

What's the minimum amount you would need to spend to set up a simulator like yours?
Forum: RV-15 09-07-2021, 09:00 PM
Replies: 234
Views: 34,003
Posted By emsvitil
There is no rotax 918 engine. If you look at the...

There is no rotax 918 engine.

If you look at the picture, the middle cylinder doesn't have any exhaust port........ And the middle exhaust pipe ends on the rear cylinder.
Forum: Alternative Engines 09-07-2021, 05:36 PM
Replies: 37
Views: 5,030
Posted By emsvitil
I'd rather have a V-12 Merlin...

I'd rather have a V-12 Merlin soundtrack................
Forum: Glass Cockpit 09-05-2021, 03:23 AM
Replies: 7
Views: 831
Posted By emsvitil
Do you want all your eggs in the same basket or...

Do you want all your eggs in the same basket or separate baskets?
Forum: RV General Discussion/News 09-04-2021, 11:19 PM
Replies: 6
Views: 931
Posted By emsvitil
Maybe it's the other way around...... That area...

Maybe it's the other way around......

That area is NOT some sort of airspace.
Forum: RV-15 09-03-2021, 09:11 PM
Replies: 20
Views: 3,809
Posted By emsvitil
And you thought seeing thru 1 head was...

And you thought seeing thru 1 head was bad.............
Forum: Traditional Aircraft Engines 08-31-2021, 06:41 PM
Replies: 16
Views: 2,099
Posted By emsvitil
The IO375 is the same size as the IO370. Just...

The IO375 is the same size as the IO370. Just a slightly different name.


They are both 371 cuin........
Forum: Safety 08-31-2021, 05:04 PM
Replies: 104
Views: 16,529
Posted By emsvitil
Your ping pong ball weights are off by a factor...

Your ping pong ball weights are off by a factor of 10...........

So everything is 10 times heavier.


The air / helium weight is now insignificant.
Forum: Safety 08-31-2021, 05:46 AM
Replies: 104
Views: 16,529
Posted By emsvitil
A ping pong ball is 2.7 grams

A ping pong ball is 2.7 grams
Forum: Safety 08-30-2021, 11:31 PM
Replies: 104
Views: 16,529
Posted By emsvitil
How many ping pong balls in the wings and...

How many ping pong balls in the wings and fuselage would keep the plane from sinking?
Forum: Safety 08-30-2021, 05:27 PM
Replies: 104
Views: 16,529
Posted By emsvitil
Most people also think of AoA as the fuselage...

Most people also think of AoA as the fuselage angle, not the wing angle (effective angle with and without flaps)
Forum: Safety 08-30-2021, 05:26 PM
Replies: 104
Views: 16,529
Posted By emsvitil
https://www.boldmethod.com/blog/2013/10/how-does-l...

https://www.boldmethod.com/blog/2013/10/how-does-lowering-flaps-affect-angle-of-attack/


I think the key is that without flaps you're coming in with the tail lower.

The lower tail may help prevent...
Forum: RV Building Tips/Techniques 08-30-2021, 03:29 PM
Replies: 15
Views: 2,877
Posted By emsvitil
How do the nibblers work?

How do the nibblers work?
Forum: RV General Discussion/News 08-30-2021, 03:24 PM
Replies: 4
Views: 793
Posted By emsvitil
N is stator. It will show about 1/2 output...

N is stator. It will show about 1/2 output voltage if you put on a voltmeter.

E is ground. It may or may not be grounded to case.

Some alternators are controlled by low-side regulators (+12v...
Forum: Safety 08-29-2021, 07:43 PM
Replies: 104
Views: 16,529
Posted By emsvitil
Here's a short video of one...

Here's a short video of one flipping:

https://www.cnn.com/videos/world/2016/08/16/plane-water-landing-crash-rescue-newday.cnn

The front landing gear hit water first........
Forum: Safety 08-27-2021, 10:16 PM
Replies: 104
Views: 16,529
Posted By emsvitil
May or may not apply to Cessna's, but I seem to...

May or may not apply to Cessna's, but I seem to recall that some aircraft seat's are designed to take the vertical G load of a crash.......
Forum: Safety 08-27-2021, 05:49 AM
Replies: 104
Views: 16,529
Posted By emsvitil
The yaw could have prevented the flip. It would...

The yaw could have prevented the flip.

It would have to a flipped over the wingtip.
Forum: RV Building Tips/Techniques 08-26-2021, 06:36 PM
Replies: 15
Views: 2,877
Posted By emsvitil
So it's measure twice and cut thrice...

So it's measure twice and cut thrice now.........

:)
Forum: RV-15 08-26-2021, 04:37 AM
Replies: 234
Views: 34,003
Posted By emsvitil
Here's the new...

Here's the new bushplane:

https://c8.alamy.com/comp/BFDKTT/topiary-of-aeroplane-BFDKTT.jpg
Forum: RV-14 08-25-2021, 05:24 PM
Replies: 10
Views: 1,628
Posted By emsvitil
Would hot (boiling?) water pot do the trick?

Would hot (boiling?) water pot do the trick?
Forum: RV-15 08-25-2021, 05:23 PM
Replies: 234
Views: 34,003
Posted By emsvitil
Here's some info on the (ugly)...

Here's some info on the (ugly) Sonex:

https://www.avweb.com/aviation-news/sonex-announces-plans-to-develop-a-line-of-high-wing-aircraft/
Forum: Electrical Systems 08-23-2021, 05:27 PM
Replies: 25
Views: 4,333
Posted By emsvitil
You have thermistors in the generator. Any way...

You have thermistors in the generator.

Any way to tap into them and actually see what the temp of the generator is ?
Forum: Electrical Systems 08-22-2021, 04:58 AM
Replies: 11
Views: 1,132
Posted By emsvitil
What's the airflow direction from the internal...

What's the airflow direction from the internal fan of the alternator?

Thru the rear then alternator and out or vice versa?

Is there a study somewhere that took temperatures from various places...
Forum: Electrical Systems 08-22-2021, 02:48 AM
Replies: 11
Views: 1,132
Posted By emsvitil
So what happens if you cool the alternator with a...

So what happens if you cool the alternator with a separate tiny naca duct?
Forum: RV Ongoing Maintenance Issues 08-20-2021, 09:28 PM
Replies: 10
Views: 1,308
Posted By emsvitil
Doesn't B&C work with an external regulator? If...

Doesn't B&C work with an external regulator?

If so, it could be the regulator.
Forum: Electrical Systems 08-20-2021, 08:38 PM
Replies: 11
Views: 1,533
Posted By emsvitil
Sounds like it's a permanent magnet alternator...

Sounds like it's a permanent magnet alternator (like what is in my motorcycle)

Once it starts spinning, it starts generating a AC voltage and current.

More rpm, more current and voltage. So you...
Forum: RV General Discussion/News 08-20-2021, 01:29 AM
Replies: 20
Views: 3,022
Posted By emsvitil
Do you need lower compression on the 390 if you...

Do you need lower compression on the 390 if you use electronic ignitions with an actual ignition curve.....................
Forum: RV General Discussion/News 08-18-2021, 09:43 PM
Replies: 20
Views: 3,022
Posted By emsvitil
How big are you? If you're BIG, you'll fit...

How big are you?

If you're BIG, you'll fit better in a 14.
Forum: RV-15 08-13-2021, 10:14 PM
Replies: 234
Views: 34,003
Posted By emsvitil
What change? Looks like the same page I saw a...

What change?

Looks like the same page I saw a couple of weeks ago........
Forum: Alternative Engines 08-13-2021, 05:53 PM
Replies: 44
Views: 4,214
Posted By emsvitil
Start with magnetic drain...

Start with magnetic drain plugs...........

Probably all you'd need.
Forum: RV-15 08-13-2021, 05:45 PM
Replies: 234
Views: 34,003
Posted By emsvitil
A normal 4-seater is BOTH tandem and side by...

A normal 4-seater is BOTH tandem and side by side..............

:D
Forum: Rocket 08-12-2021, 06:11 PM
Replies: 19
Views: 2,336
Posted By emsvitil
It's not just the rim. Tubeless tires can be...

It's not just the rim.

Tubeless tires can be used with tubes.

Tube type tires aren't designed to necessarily hold air. The tire/rim may leak air, the inner liner of the tire can be porous (that's...
Forum: Alternative Engines 08-12-2021, 06:45 AM
Replies: 91
Views: 16,469
Posted By emsvitil
But will you still get the random piston firings...

But will you still get the random piston firings during startup with EFI?

P-47 Start-up
https://www.youtube.com/watch?v=kmFJ08E0l1k
Forum: Rocket 08-11-2021, 06:25 PM
Replies: 19
Views: 2,336
Posted By emsvitil
But is the tire tubeless?

But is the tire tubeless?
Forum: Rocket 08-11-2021, 06:18 PM
Replies: 19
Views: 2,336
Posted By emsvitil
Is there a tubeless version of the 380 tire?

Is there a tubeless version of the 380 tire?
Forum: RV General Discussion/News 08-11-2021, 01:21 AM
Replies: 3
Views: 914
Posted By emsvitil
If the curve of the block doesn't match the curve...

If the curve of the block doesn't match the curve of the tire, it won't do anything.

Plus, you should have a compound curve (3D vs 2D) with aircraft tires.

:D
Forum: RV-15 08-10-2021, 10:46 PM
Replies: 42
Views: 8,620
Posted By emsvitil
sarahfly13, Want's me to sign in to see your...

sarahfly13,

Want's me to sign in to see your pictures............
Forum: Alternative Engines 08-10-2021, 06:48 PM
Replies: 44
Views: 4,214
Posted By emsvitil
Make sure you have some odd ball tooth count on...

Make sure you have some odd ball tooth count on the gearbox so the teeth don't always mesh with the same teeth to avoid any weird tooth wear pattern problems.
Forum: Reviews 08-10-2021, 06:42 PM
Replies: 15
Views: 2,681
Posted By emsvitil
Is the diffuser 30 degrees horizontal and...

Is the diffuser 30 degrees horizontal and vertical or 30 degree horizontal keeping 8 degrees vertical?
Forum: RV-8/8A 08-07-2021, 11:57 PM
Replies: 10
Views: 1,844
Posted By emsvitil
Isn't that where you put the relief tube?

Isn't that where you put the relief tube?
Forum: Alternative Engines 08-07-2021, 10:58 PM
Replies: 44
Views: 4,214
Posted By emsvitil
https://www.enginehistory.org/Propellers/Curtiss/C...

https://www.enginehistory.org/Propellers/Curtiss/CEContra/CEContra.shtml
Forum: Alternative Engines 08-07-2021, 10:40 PM
Replies: 44
Views: 4,214
Posted By emsvitil
contra rotating prop rpm

Do most contra-rotating props use a differential for load balancing?

Meaning that they can rotate at different rpms, but the load on each prop is the same.............. (or if you stop one prop, the...
Forum: Alternative Engines 08-07-2021, 08:44 PM
Replies: 44
Views: 4,214
Posted By emsvitil
https://aviation.stackexchange.com/questions/24716...

https://aviation.stackexchange.com/questions/24716/can-noise-from-contra-rotating-propellers-be-reduced-by-having-a-different-numbe
Forum: Alternative Engines 08-07-2021, 08:36 PM
Replies: 44
Views: 4,214
Posted By emsvitil
You may want to find out about the multi-engine...

You may want to find out about the multi-engine rating for design consideratons.

One thought I had was if the engines are joined together (either at the engine or gearbox level) and both props...
Forum: Alternative Engines 08-07-2021, 06:23 PM
Replies: 44
Views: 4,214
Posted By emsvitil
Think about mufflers. Unmuffled rotaries are...

Think about mufflers.


Unmuffled rotaries are VERY loud................
Forum: RV-7/7A 08-07-2021, 06:17 PM
Replies: 12
Views: 1,208
Posted By emsvitil
3 countersunk holes for 3 brass wood...

3 countersunk holes for 3 brass wood screws.

then solder the heads of the screws to the lead............
Forum: RV-15 08-06-2021, 09:28 PM
Replies: 234
Views: 34,003
Posted By emsvitil
Did you notice the interceptors (spoilerons) on...

Did you notice the interceptors (spoilerons) on the top of the wing.........
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