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Search: Posts Made By: Mel
Forum: Traditional Aircraft Engines 05-11-2021, 07:24 AM
Replies: 23
Views: 1,210
Posted By Mel
Have you considered exhaust "pounding" on the...

Have you considered exhaust "pounding" on the floor? If your exhaust pipes don't have "turn-downs" at the tip, sometimes this can cause a vibration on the floor.
Forum: RV-4 05-10-2021, 07:21 AM
Replies: 3
Views: 119
Posted By Mel
I might suggest that you rethink your decision to...

I might suggest that you rethink your decision to remove the rear baffle. Cutting large holes in the baffle is much easier and less invasive. Don't let the difficulty of working through the "end"...
Forum: RV-7/7A 05-09-2021, 06:46 AM
Replies: 21
Views: 2,193
Posted By Mel
I have done very little research on this...

I have done very little research on this particular situation, however, combining 2 mods for the same thing is usually not a good idea. Even if it does make it stronger, adding strength to one place...
Forum: RV-9/9A 05-06-2021, 11:33 AM
Replies: 11
Views: 1,134
Posted By Mel
Be careful. The instrument panel is VERY close...

Be careful. The instrument panel is VERY close to the Center of Gravity. It would take less bubblegum if you put it on the engine mount. Of course an ample piece of fire-sleeve will be appropriate.
Forum: COMM 05-03-2021, 03:01 PM
Replies: 8
Views: 544
Posted By Mel
That's exactly what we had on our C-124s. For...

That's exactly what we had on our C-124s.

For those unaware, the C-124 is NOT a Cessna!
Forum: RV General Discussion/News 04-27-2021, 06:01 AM
Replies: 29
Views: 1,898
Posted By Mel
I flew my -6 in Texas for over 25 years and never...

I flew my -6 in Texas for over 25 years and never had a problem.....HOWEVER, having said that, part of my pre-flight is to stick a pipe cleaner up into the vents to check for obstructions.
Forum: Flight Testing 04-26-2021, 03:19 PM
Replies: 1
Views: 397
Posted By Mel
F/P to F/P can be considered a major change if it...

F/P to F/P can be considered a major change if it is from a different mfg., different diameter/pitch, different material, substantial weight difference.

Basically if it significantly changes the W&B...
Forum: Flight Testing 04-26-2021, 12:18 PM
Replies: 5
Views: 277
Posted By Mel
Yes...........

Yes...........
Forum: Flight Testing 04-26-2021, 12:13 PM
Replies: 5
Views: 277
Posted By Mel
Phase I flight testing may be done by any pilot...

Phase I flight testing may be done by any pilot otherwise qualified to fly the aircraft. After completing the flight testing, the only paperwork is to make the appropriate logbook entry. It's all...
Forum: RV models of the future (RV-??) 04-23-2021, 05:36 PM
Replies: 28
Views: 2,697
Posted By Mel
Putting a nose gear on a Cub is like driving a...

Putting a nose gear on a Cub is like driving a convertible with the top down and the windows up! It may not be against the law, but it should be.
Forum: RV General Discussion/News 04-22-2021, 06:27 PM
Replies: 14
Views: 1,885
Posted By Mel
Several people I know recently got registration...

Several people I know recently got registration back within 7-10 days.
Forum: Traditional Aircraft Engines 04-22-2021, 07:07 AM
Replies: 9
Views: 499
Posted By Mel
The O-320-E2D has a hollow crank. It's not the...

The O-320-E2D has a hollow crank. It's not the crankshaft that keep it from using a C/S prop. It's the front main bearing and crankcase design.
Forum: RV-8/8A 04-16-2021, 06:52 AM
Replies: 23
Views: 3,190
Posted By Mel
My mistake. For some reason, I was thinking that...

My mistake. For some reason, I was thinking that the requirement was 180°.
Forum: RV-8/8A 04-15-2021, 01:13 PM
Replies: 23
Views: 3,190
Posted By Mel
Unfortunately this blocks off the view to the...

Unfortunately this blocks off the view to the left of your light, making night flight not in conformance with FARs.
Forum: Safety 04-14-2021, 07:48 PM
Replies: 59
Views: 7,014
Posted By Mel
One of the primary things I'm looking for is that...

One of the primary things I'm looking for is that the pressure vessel hasn't been compromised by installation of the interior. It's not uncommon to find that while putting in the interior, someone...
Forum: Safety 04-14-2021, 01:40 PM
Replies: 59
Views: 7,014
Posted By Mel
Actually a few E-AB A/W certificates can have an...

Actually a few E-AB A/W certificates can have an expiration. For example; if I do a pressurized aircraft, I will issue a 1 year certificate. I want to inspect the aircraft after the interior is...
Forum: RV-9/9A 04-14-2021, 07:22 AM
Replies: 6
Views: 738
Posted By Mel
It should be a castellated nut. This bolt is...

It should be a castellated nut. This bolt is subject to rotation, even though it is very minimal.
Forum: RV General Discussion/News 04-13-2021, 06:11 PM
Replies: 7
Views: 1,557
Posted By Mel
You may NOT use the "X" in the registration...

You may NOT use the "X" in the registration number on an RV-8 until the design is 30 years old. This same paragraph allows use of 2" numbers.
§Ref 45.22(b)(1)
Forum: Safety 04-13-2021, 01:51 PM
Replies: 59
Views: 7,014
Posted By Mel
I once had a gentleman call me and ask if I could...

I once had a gentleman call me and ask if I could do a Condition Inspection on his RV. He had just bought it and brought it here from out of state. I told him I didn't have the time right now and...
Forum: RV General Discussion/News 04-10-2021, 09:04 AM
Replies: 5
Views: 636
Posted By Mel
I just watched this video and the gentleman is...

I just watched this video and the gentleman is wrong on 1 point. To qualify for the repairman certificate the applicant must be listed as A primary builder but he/she does NOT have to build 51% of...
Forum: RV General Discussion/News 04-09-2021, 06:04 AM
Replies: 10
Views: 823
Posted By Mel
The statement of VFR Vs. IFR on the program...

The statement of VFR Vs. IFR on the program letter is not binding.

Your op lims should state that You may fly IFR if equipped and current per §91.205 as others have stated.
Forum: RV-7/7A 04-08-2021, 05:43 PM
Replies: 15
Views: 1,118
Posted By Mel
Both com antenna's on my -6 just forward of the...

Both com antenna's on my -6 just forward of the main spar couple inches inboard of the fuselage sides. Almost 30 years old and still working great. Never had a problem communicating with ground...
Forum: RV General Discussion/News 04-07-2021, 08:19 PM
Replies: 44
Views: 3,533
Posted By Mel
Current operating limitations contain the...

Current operating limitations contain the following paragraph:

Flight over a densely populated area or in a congested airway is authorized for the purpose of takeoff or landing; or when sufficient...
Forum: RV General Discussion/News 04-07-2021, 10:22 AM
Replies: 2
Views: 374
Posted By Mel
Primarily, prop/ground clearance.

Primarily, prop/ground clearance.
Forum: RV-7/7A 04-07-2021, 07:19 AM
Replies: 11
Views: 1,133
Posted By Mel
You are not required to change the model, but you...

You are not required to change the model, but you can if you wish. The procedure to change model is to amend your A/W and Op Lims and add a new data plate next to the original. Any DAR with the...
Forum: RV General Discussion/News 04-06-2021, 01:26 PM
Replies: 44
Views: 3,533
Posted By Mel
In a word....NO! to both questions.

In a word....NO! to both questions.
Forum: RV-8/8A 04-06-2021, 12:00 PM
Replies: 2
Views: 327
Posted By Mel
Just for clarity......

That would be "track". Wheel base is from front to rear.
Forum: RV General Discussion/News 04-06-2021, 10:29 AM
Replies: 44
Views: 3,533
Posted By Mel
That would be §91.319(d): "Each person operating...

That would be §91.319(d): "Each person operating an aircraft that has an experimental certificate shall--(3)Notify the control tower of the experimental nature of the aircraft when operating into or...
Forum: RV General Discussion/News 04-05-2021, 03:53 PM
Replies: 59
Views: 3,668
Posted By Mel
Yes, but in doing so, you will destroy it's...

Yes, but in doing so, you will destroy it's intended locking mechanism.
Forum: RV-12/RV-12iS 04-05-2021, 06:22 AM
Replies: 12
Views: 1,083
Posted By Mel
Conduct a pre-flight inspection.

Conduct a pre-flight inspection.
Forum: RV General Discussion/News 04-04-2021, 08:40 PM
Replies: 11
Views: 866
Posted By Mel
But they have since been updated!!!! I know.

But they have since been updated!!!! I know.
Forum: Traditional Aircraft Engines 04-04-2021, 02:27 PM
Replies: 44
Views: 4,098
Posted By Mel
Comparing aircraft engine longevity/oil change...

Comparing aircraft engine longevity/oil change intervals to autos is not exactly apples-to-apples.
For one thing, auto engines rarely run continuously at 75% power.
Forum: Traditional Aircraft Engines 04-04-2021, 09:52 AM
Replies: 44
Views: 4,098
Posted By Mel
Most automobiles have a recommendation to change...

Most automobiles have a recommendation to change oil at least annually.
Forum: RV-3 04-03-2021, 10:49 AM
Replies: 4
Views: 899
Posted By Mel
Actually Jeff & Chuck have sold that business. ...

Actually Jeff & Chuck have sold that business. I'll see if I can get the new guys contact info.
Forum: RV General Discussion/News 04-02-2021, 03:01 PM
Replies: 11
Views: 866
Posted By Mel
Explain Please?....... The paragraph concerning...

Explain Please?.......

The paragraph concerning major changes hasn't changed in over 15 years.
Forum: RV General Discussion/News 04-02-2021, 02:10 PM
Replies: 11
Views: 866
Posted By Mel
Any DAR with the proper function code (147 for...

Any DAR with the proper function code (147 for DAR-T or 57 for DAR=F) can amend you operating limitations. It's strictly a paperwork function. The aircraft must have a current condition inspection.
Forum: RV General Discussion/News 04-02-2021, 01:15 PM
Replies: 5
Views: 482
Posted By Mel
Actually the FAA Registration office gives...

Actually the FAA Registration office gives priority to original registrations and is currently turning them around pretty quickly. I registered my current aircraft last month and received it in less...
Forum: RV Building Tips/Techniques 04-02-2021, 01:06 PM
Replies: 6
Views: 1,384
Posted By Mel
Sorry, but this is backwards. The Airworthiness...

Sorry, but this is backwards. The Airworthiness Certificate must be displayed. Ref: §91.203(b)

The registration, Op Lims, and current W&B must be on board.
Forum: RV General Discussion/News 04-02-2021, 06:46 AM
Replies: 8
Views: 454
Posted By Mel
"Significant change" is a judgment call. I...

"Significant change" is a judgment call. I suspect that what you are proposing would be insignificant.
Forum: RV General Discussion/News 04-02-2021, 06:30 AM
Replies: 15
Views: 1,053
Posted By Mel
A WORD OF CAUTION..........

There is no need to include "LL" on fueling placards. The requirement is to include "Minimum Fuel Grade and Quantity". The regulations say nothing about lead content. If you have "LL" on your fuel...
Forum: RV General Discussion/News 04-02-2021, 06:20 AM
Replies: 8
Views: 454
Posted By Mel
Legally, anyone can maintain, repair, and even...

Legally, anyone can maintain, repair, and even modify an Experimental Amateur-Built aircraft.
Having said that, if you are not experienced at these kinds of things, I strongly recommend that you have...
Forum: RV-7/7A 03-31-2021, 07:32 AM
Replies: 2
Views: 724
Posted By Mel
Any time I'm working on aircraft, or working on...

Any time I'm working on aircraft, or working on anything around the House or Hangar, I wear bib overalls. No belts, no brads, etc, and lots of pockets.
Forum: RV models of the future (RV-??) 03-26-2021, 01:28 PM
Replies: 45
Views: 7,356
Posted By Mel
The RV-6 is by no means an outdated design. It...

The RV-6 is by no means an outdated design. It was simply replaced because the -7 could be built with already prepunched and prefabbed part from the RV-8 & -9, making it easier to kit and to build.
Forum: RV-7/7A 03-26-2021, 06:56 AM
Replies: 34
Views: 2,539
Posted By Mel
Yes, but so will a lower touchdown speed.

Yes, but so will a lower touchdown speed.
Forum: RV General Discussion/News 03-25-2021, 10:50 AM
Replies: 21
Views: 1,403
Posted By Mel
I typically give a 75nm radius for RVs except for...

I typically give a 75nm radius for RVs except for the -12 (55nm radius). The home airport need not be in the center of the circle, just within it. I also offer 1 airport outside the circle up to...
Forum: RV Ongoing Maintenance Issues 03-25-2021, 07:17 AM
Replies: 9
Views: 1,584
Posted By Mel
Just be sure and check your bag first. Not all...

Just be sure and check your bag first. Not all Walmart bags are "leakproof".
Forum: RV General Discussion/News 03-24-2021, 04:30 PM
Replies: 2
Views: 352
Posted By Mel
Isn't it for the wheel pant attach?

Isn't it for the wheel pant attach?
Forum: RV General Discussion/News 03-24-2021, 04:25 PM
Replies: 12
Views: 1,046
Posted By Mel
Congratulations Tom & Bonnie!

Congratulations Tom & Bonnie!
Forum: RV-10 03-24-2021, 02:17 PM
Replies: 39
Views: 3,098
Posted By Mel
In the U.S. the 51% qualification is determined...

In the U.S. the 51% qualification is determined by filling out the "Amateur-Built Fabrication and Assembly Checklist (2011) Fixed Wing"

This is a 10 page checklist found on the FAA website. It is...
Forum: RV General Discussion/News 03-24-2021, 06:11 AM
Replies: 5
Views: 708
Posted By Mel
As said before, Part 43 does not apply to...

As said before, Part 43 does not apply to experimental amateur-built aircraft, EXCEPT for the annual condition inspection, as specified in the operating limitations.

Most MIDO and/or FSDO inspectors...
Forum: RV General Discussion/News 03-22-2021, 06:59 PM
Replies: 26
Views: 2,479
Posted By Mel
I can attest.......

I also had a C-170. I'm pretty sure the slip w/flaps restriction was limited to the C-170B and the L-19. The combination of the "barn-door" flaps and the rather large rudder caused a situation...
Forum: RV General Discussion/News 03-22-2021, 08:29 AM
Replies: 21
Views: 1,832
Posted By Mel
Just as a point of clarification, lighting...

Just as a point of clarification, lighting requirements are no different for experimental aircraft. §91.205 applies equally for certified and experimental aircraft.
Forum: RV General Discussion/News 03-21-2021, 01:06 PM
Replies: 12
Views: 810
Posted By Mel
I'm not familiar with that particular unit, but a...

I'm not familiar with that particular unit, but a transponder and a GPS cannot share the same antenna. And, the transponder antenna needs to be on the bottom whereas the GPS needs to be on top of...
Forum: Traditional Aircraft Engines 03-20-2021, 01:53 PM
Replies: 232
Views: 49,984
Posted By Mel
Not quite sure where this is coming from. Cessna...

Not quite sure where this is coming from. Cessna 172XP's, or more accurately the "Hawk XP", use a 6 cylinder, derated Continental IO-360.

Unless you are thinking to the C-172SP, which does use a...
Forum: RV-12/RV-12iS 03-19-2021, 11:10 AM
Replies: 34
Views: 3,424
Posted By Mel
Not Recommended......

The stabilator attach points are not really designed for this kind of load.

Whereas a horizontal stabilizer is mounted by several solid bolts, a stabilator is mounted by only the hinges.
Forum: RV-12/RV-12iS 03-18-2021, 09:53 AM
Replies: 34
Views: 3,424
Posted By Mel
Sounds like you might have dragging brakes. ...

Sounds like you might have dragging brakes. Sometimes a master cylinder may not return to the released position when you get off the pedal. If this is the case, adding compression springs to the...
Forum: RV General Discussion/News 03-17-2021, 02:31 PM
Replies: 2
Views: 440
Posted By Mel
I would be leery of using Duracell batteries for...

I would be leery of using Duracell batteries for a 10 year application.

I would check them visually every year at annual condition inspection,

Since Duracell moved across the pond, my experience is...
Forum: RV-8/8A 03-16-2021, 10:29 AM
Replies: 19
Views: 2,714
Posted By Mel
Very nice paint job. However, people need to...

Very nice paint job.

However, people need to be aware of "FAR §45.25(b)(2) If displayed on the fuselage surfaces, horizontally on both sides of the fuselage between the trailing edge of the wing...
Forum: RV General Discussion/News 03-12-2021, 12:54 PM
Replies: 5
Views: 787
Posted By Mel
Not sure about the -7 or -8, but I'm pretty sure...

Not sure about the -7 or -8, but I'm pretty sure that RV-4 ailerons are longer than the RV-6.
Forum: Interiors 03-12-2021, 07:00 AM
Replies: 5
Views: 855
Posted By Mel
First, registration does not need to be displayed...

First, registration does not need to be displayed in the cockpit. It's the Airworthiness Certificate that is to be displayed. The registration must be IN the aircraft, but not necessarily...
Forum: RV General Discussion/News 03-10-2021, 07:57 AM
Replies: 11
Views: 1,762
Posted By Mel
I'm waiting also. Typically in the past the...

I'm waiting also. Typically in the past the specials have come out around the middle of March.
Forum: RV General Discussion/News 03-09-2021, 08:21 PM
Replies: 1
Views: 448
Posted By Mel
ANYONE can perform maintenance, repair and even...

ANYONE can perform maintenance, repair and even modifications to an experimental amateur-built aircraft.

The owner does not have to be the primary builder, but should be listed as a builder.

To...
Forum: RV General Discussion/News 03-09-2021, 06:23 AM
Replies: 25
Views: 3,889
Posted By Mel
That was my first thought as well, but he...

That was my first thought as well, but he confronted the person and she told him it didn't matter.
Forum: RV General Discussion/News 03-09-2021, 05:54 AM
Replies: 25
Views: 3,889
Posted By Mel
Nope, it's an RV-8. The only change he's made is...

Nope, it's an RV-8. The only change he's made is the "ShowPlanes" fast-back mod.
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