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Search: Posts Made By: M McGraw
Forum: RV-14 12-08-2018, 12:40 PM
Replies: 3
Views: 361
Posted By M McGraw
If your asking about the hinges on the seat pan,...

If your asking about the hinges on the seat pan, yes. Also, you may consider not installing the rear most hinge. The Aero Classic seat has a 45* bend at the bottom where the hinge attaches. Causing...
Forum: Electronic Ignition Systems 12-05-2018, 04:17 PM
Replies: 53
Views: 5,112
Posted By M McGraw
Interesting thread

This thread is facinating because the two respondents that could gain financially by claiming Hp gains from EI are not making that claim. Yet, others seem to want to prove them wrong.
Forum: RV-14 12-03-2018, 06:15 AM
Replies: 11
Views: 710
Posted By M McGraw
Harness

I used the standard harness. As a first time builder, I was unaware of the difference. I did read the Aeroleds warning, but did not quite understand the difference. I did comply with the Vans...
Forum: RV-14 12-03-2018, 06:00 AM
Replies: 11
Views: 710
Posted By M McGraw
Shielded wire

Mark,
Take the time to use shielded wire in the wings. I do have strobe and wig/wag noise. I’ve been too busy flying to fix the noise. It is the only noise issue I have.
Marvin
Forum: RV-9/9A 11-26-2018, 03:58 PM
Replies: 41
Views: 4,166
Posted By M McGraw
Vans design.

Would it be possible to plumb to the original spot and rivet? The reason I ask is location and type can make a difference. While I was building, I noticed a trend on VAF where those whom modified...
Forum: RV-9/9A 11-26-2018, 03:37 PM
Replies: 41
Views: 4,166
Posted By M McGraw
Calibration error

To those that have calibration concerns, would you be willing to post the type and placement of your static port? Is it the standard Vans rivet or something else?
Forum: RV General Discussion/News 11-24-2018, 05:43 PM
Replies: 24
Views: 3,568
Posted By M McGraw
Hello Ed, I don’t understand your point. I think...

Hello Ed,
I don’t understand your point. I think your saying that looking at AOA is a distraction, yet would not looking at airspeed be similar? I understand you have a preference for airspeed and...
Forum: RV General Discussion/News 11-24-2018, 04:03 PM
Replies: 24
Views: 3,568
Posted By M McGraw
Questions.

Hello Ed,
When I fly an approach at increased speed due to a controller request, by definition the approach is no longer stabalized at the briefed approach speed or AOA. However, somewhere between...
Forum: RV-10 11-18-2018, 01:48 PM
Replies: 16
Views: 1,314
Posted By M McGraw
Aero Classis 6.00-6 tires

6” tires can be put on a Vans. Ralph Inksters numbers for the diameter change are correct. A standard 5” tire is close to 14” diameter, a 6.00-6 is about 17.5” diameter, a 6.00-6/15 as used on the...
Forum: Safety 11-18-2018, 01:27 PM
Replies: 171
Views: 16,414
Posted By M McGraw
Vic, Respectfully, this concept that every third...

Vic,
Respectfully, this concept that every third aircraft may simply be told to proceed to “your” alternate is demoralizing. I fly all the way to OSH and get randomly selected to not be allowed in,...
Forum: Fuel Injection Systems 11-17-2018, 11:03 AM
Replies: 7
Views: 965
Posted By M McGraw
Request

Would you be willing to do a test flight? Since you have an airplane before and after System32, I would like to see your percentage change in two regions.

Find a Density Altitude from a previous...
Forum: RV General Discussion/News 11-17-2018, 10:03 AM
Replies: 17
Views: 2,167
Posted By M McGraw
Look for Vlad

Look for a thread titled “Do you collect grass strips”. Vlad may well have been on every grass strip in America. He flys a 9A.
Forum: Southeast 11-17-2018, 12:12 AM
Replies: 2
Views: 267
Posted By M McGraw
Knoxville airports

If your comfortable with grass try Skyranch (TN98).
Forum: Fuel Injection Systems 11-16-2018, 10:03 AM
Replies: 7
Views: 965
Posted By M McGraw
Fuel flow

Is your 16 knot speed increase for the same fuel flow and density altitude?
Forum: RV-14 11-07-2018, 11:07 AM
Replies: 26
Views: 2,510
Posted By M McGraw
CHT LOP data

Hello Carl,
I do have LOP data. In fact, I have too much. This is my first engine which could run LOP so I tested way too many variables to understand the effects. I only post data that has been...
Forum: RV-14 11-07-2018, 09:39 AM
Replies: 26
Views: 2,510
Posted By M McGraw
CHT as a function of ignition advance

This is for 75% power at 100ROP and constant OAT. I stopped testing at 25BTDC because temperature continued to increase and speed decreased indicating I had exceeded a useful advance. Speed peaked at...
Forum: RV-14 11-06-2018, 07:50 AM
Replies: 26
Views: 2,510
Posted By M McGraw
RV14 CHT and Oil temperatures

For the purposes of this thread I elected to post only ROP (Rich of Peak) data at or above 70% power (worst case). As you can see the RV-14 cooling system leaves significant margin for CHT cooling....
Forum: RV-14 11-05-2018, 05:58 AM
Replies: 20
Views: 2,479
Posted By M McGraw
Just an opinion, but I like the pins as well....

Just an opinion, but I like the pins as well. They are low cost and clean. Instead of boelube I use a telfon lube from autozone. It goes on wet then drys to white teflon power. It does not get my...
Forum: RV-14 10-29-2018, 08:27 AM
Replies: 13
Views: 1,015
Posted By M McGraw
Red cube

Your -14 kit will include a red cube fuel flow sensor. Truly, the -14 kit gets a bit of a rap on this board about cost; however, you will be pleasently surprised how much is included.
Forum: RV-14 10-28-2018, 12:41 PM
Replies: 18
Views: 1,359
Posted By M McGraw
Previous thread on wingtips

Here is a post from a while back. I had to follow the setup described by Scott McDanials to get mine to fly straight without any trim....
Forum: Trip Write-ups 10-26-2018, 06:06 AM
Replies: 35
Views: 3,135
Posted By M McGraw
Good thread!

Thanks for stopping in with Hope. Sandy and I enjoyed the company!
Marvin

P.S - The shoe thing was always a mystery with my boys also. :)
Forum: RV General Discussion/News 10-22-2018, 12:54 PM
Replies: 31
Views: 3,067
Posted By M McGraw
Placing bets.

To DanH,
Please tell Patti I no longer want the five dollars I bet on you back :)
Marvin
Forum: RV-12 10-14-2018, 07:04 AM
Replies: 8
Views: 1,482
Posted By M McGraw
Engine preheater?

I feel your pain, it got down to near 60F last night here! Do you have an engine preheater? I put on an oil sump heater last year. Its nice to have your engine at 90F before starting.
Forum: RV-14 10-08-2018, 07:07 PM
Replies: 3
Views: 708
Posted By M McGraw
Rear window

I’m not good with the search function on this board; however, it has been done to split the rear window and make a mooney like access door.
Forum: Traditional Aircraft Engines 09-29-2018, 07:22 PM
Replies: 20
Views: 1,430
Posted By M McGraw
Of course you flew! The socket at NAPA is it a...

Of course you flew!

The socket at NAPA is it a thinwall or the thickness of a craftsman socket? The autolite socket is thinner than my craftsman.
Forum: Traditional Aircraft Engines 09-29-2018, 06:33 PM
Replies: 20
Views: 1,430
Posted By M McGraw
Tempest/autolight

Glen,
I think that tempest plug you have is the same as an autolite. The “nut” is lower than a champion plug requiring the longer socket. I think you need the “T557 Sparkplug Holder”. I have an extra...
Forum: Traditional Aircraft Engines 09-29-2018, 04:48 PM
Replies: 20
Views: 1,430
Posted By M McGraw
Socket

Glen,
I may have one you can have. Give until tomorrow to look through my hangar.
Marvin
Forum: Southeast 09-27-2018, 12:34 PM
Replies: 12
Views: 1,441
Posted By M McGraw
This weekend

I was really looking forward to this event. This morning I attempted to fix a small oil leak. I now have a large oil leak with new gaskets on order. The plane will not be back together before the...
Forum: RV-14 09-17-2018, 08:05 AM
Replies: 12
Views: 2,528
Posted By M McGraw
-14

These numbers align well with my experience and I suspect mine is a bit slow due to larger wheels and fairings. As far as comparing to a -9 the -14 is larger and heavier so it would be difficult to...
Forum: Northeast 09-17-2018, 07:18 AM
Replies: 14
Views: 1,507
Posted By M McGraw
Belfast

It really was a fun event! David is a gracious host and seemless event coordinator. The trip required significant deviation through western New York. We went non-stop to Penn Yan, but the weather...
Forum: Northeast 09-13-2018, 12:10 PM
Replies: 24
Views: 2,432
Posted By M McGraw
Half way

Hello David,
Sandy and I made it to Rome, NY. We stopped for lunch and we will arrive in Belfast around 5 or 6PM. We have rooms for two nights and plan to take the airforce tour tomorrow with you. ...
Forum: Northeast 09-12-2018, 06:12 AM
Replies: 24
Views: 2,432
Posted By M McGraw
Trying to get there

Yesterday I canceled the hotel, but this morning the odds of making the trip are better. Sandy and I hope to depart Thursday morning. We had planned to stop at the Piper museum along the way. With...
Forum: Fuel Injection Systems 08-26-2018, 06:42 PM
Replies: 94
Views: 7,292
Posted By M McGraw
Southeast U.S.

I elected to wait for Ross since your question was to him, specifically.

I will add to his response to say I have had zero hot start issues in Tennessee. I turn on the fuel pump, wait for the...
Forum: Fuel Injection Systems 08-22-2018, 03:23 PM
Replies: 94
Views: 7,292
Posted By M McGraw
AFR

I can see why you would go this route.

My engine from the factory had a GAMI spread of about 0.5 gallons per hour. I have been using the individual fuel trim feature to reduce that spread for each...
Forum: Fuel Injection Systems 08-22-2018, 12:24 PM
Replies: 94
Views: 7,292
Posted By M McGraw
O2 sensor

I mounted my O2 sensor in the junction of the four into 1 exhaust system supplied with my RV14 kit. That placed the sensor about 18” from the exit. My thought was that would average out the four...
Forum: Southeast 08-16-2018, 06:07 AM
Replies: 12
Views: 1,441
Posted By M McGraw
Creighton Island

Bill,
I sent an email. I plan to attend in my -14. How many aircraft thus far?

Marvin
Forum: RV-8/8A 08-07-2018, 12:46 PM
Replies: 13
Views: 1,825
Posted By M McGraw
Airbox

I had a chance to see that airbox up close. The quality is superb. He described how he printed a mold then remove the mold with heat. I plan to learn more about 3D printing.

I am courious of your...
Forum: RV-14 08-07-2018, 10:31 AM
Replies: 40
Views: 6,083
Posted By M McGraw
Rob, A Skytec 149NL is the middle option in the...

Rob,
A Skytec 149NL is the middle option in the picture below, it is not a permanent magnet (PM) starter much like the B&C products. I think Skytec was sold a few years ago, but the NL below is the...
Forum: RV-14 08-06-2018, 09:48 AM
Replies: 55
Views: 13,517
Posted By M McGraw
Hello Andy, I agree the testing can be time...

Hello Andy,
I agree the testing can be time consuming and expensive. I went down a bit of a rabbit hole trying to compare to another aircraft on the rich of peak side, all the while knowing the...
Forum: RV-14 08-06-2018, 06:46 AM
Replies: 55
Views: 13,517
Posted By M McGraw
Hmmmm.... I had not considered a pitch offset....

Hmmmm.... I had not considered a pitch offset. I’m not sure why I would do a pitch offset because pitch required will increase with altitude. I will ponder that one.

Those minor variations in G3X...
Forum: RV-14 08-05-2018, 07:36 PM
Replies: 40
Views: 6,083
Posted By M McGraw
Skytec 149NL

Alan,
This will be an unpopular opinion, but I offer it with data from owning several airplanes. When my factory new Lycoming IO-390 arrived with the Skytec starter you have I was disappointed. I...
Forum: RV-14 08-05-2018, 02:02 PM
Replies: 55
Views: 13,517
Posted By M McGraw
Hard to compare two aircraft

http://i68.tinypic.com/35b8ndu.jpg

MP. %PWR RPM GPH CHT IAS TAS Pitch ALT OAT
20.3 60 2400 10.6 323 147.5 176 ZERO 10,500 47
20.8 63 2410 10.5 ...
Forum: RV-14 08-04-2018, 05:19 PM
Replies: 2
Views: 519
Posted By M McGraw
Ramps

Those outboard edges should be outside of your baffles, so closing them off will not matter.
Forum: Trip Write-ups 08-02-2018, 06:11 AM
Replies: 35
Views: 6,047
Posted By M McGraw
Air Venture

Wow!
Your first trip to Air Venture was a complete venture. It took me twenty years to visit all the places you did in 27 hours.

I was in a lot the the same places at Air Venture at the same time...
Forum: RV-14 08-01-2018, 09:36 AM
Replies: 55
Views: 13,517
Posted By M McGraw
Michael, The two photos are my data with respect...

Michael,
The two photos are my data with respect to Density Altitude. The red area is ROP at 75% Power. The peak is at 23BTDC. (Ignore that the advance is not linear, that is a sorting error in my...
Forum: RV-12 07-31-2018, 08:45 PM
Replies: 8
Views: 1,652
Posted By M McGraw
Lobsterfest

Congrats! I hope to see that new plane in September.
Forum: RV-14 07-31-2018, 08:35 PM
Replies: 55
Views: 13,517
Posted By M McGraw
Thanks, I can change to 23BTDC in just a few...

Thanks, I can change to 23BTDC in just a few seconds. That will become my new baseline.
Forum: RV-14 07-31-2018, 07:35 PM
Replies: 55
Views: 13,517
Posted By M McGraw
Actually, It helps significantly. I don’t like to...

Actually, It helps significantly. I don’t like to stray too far from established data without a quality check. Are you running 23BTDC at takeoff power? The SDS system does allow me to run 23BTDC for...
Forum: RV-14 07-31-2018, 12:04 PM
Replies: 55
Views: 13,517
Posted By M McGraw
0.5gph

Tom,
That post does align with my suspicion of an ~5kt or 0.5gph penalty for larger landing gear and heavier build. Changes to the original design are not free. There are build decisions I would...
Forum: RV-14 07-31-2018, 11:34 AM
Replies: 55
Views: 13,517
Posted By M McGraw
Update at 175 hours

I have been testing variable timing for quite some time. It appears my aircraft does best at about 9500PA (11,500DA), 65%PWR173KTAS@11.2gph. Below is a comparison of our return trip from Air Venture...
Forum: RV General Discussion/News 07-31-2018, 10:57 AM
Replies: 56
Views: 7,540
Posted By M McGraw
Safe in Tennessee

http://i67.tinypic.com/vqmmbk.jpg

Sandy and I returned Sunday morning. We elected to depart early to avoid potential weather. We climbed to 13,500’ and had clear skys all the way. That does not mean...
Forum: RV General Discussion/News 07-31-2018, 06:32 AM
Replies: 255
Views: 38,869
Posted By M McGraw
Safety on the ground versus safety in the air

It took me 23 pages into this thread to type an opinion. I only did so because I perceived the issue of shutting down two of three runways was being rationalized. Although I quoted a particular...
Forum: RV General Discussion/News 07-30-2018, 10:22 PM
Replies: 255
Views: 38,869
Posted By M McGraw
Thank you for responding, My concern with mass...

Thank you for responding,
My concern with mass arrivals is the use on a peak day and the fact that the time slot changed. 140 airplanes on the ground in FLD, where busses are available to OSH, is...
Forum: RV General Discussion/News 07-30-2018, 09:56 PM
Replies: 255
Views: 38,869
Posted By M McGraw
Mass arrivals

Every post I see from the board at EAA leads me to believe they are strong supporters and defenders of mass arrivals. However, they do not seem to address the suggestion that mass arrivals could and...
Forum: Fuel Injection Systems 07-22-2018, 10:43 PM
Replies: 83
Views: 17,628
Posted By M McGraw
Row 332

For those that PM’d your phone numbers to see an SDS install we did make it in today (Sunday) we are parked in HBC Row 332, N829MS. I will send each of you a text message in the morning to plan a...
Forum: RV General Discussion/News 07-22-2018, 10:33 PM
Replies: 23
Views: 3,788
Posted By M McGraw
Row 332

Sandy and I made it in today. We are in Row 332, N829MS. The HBC beerfest was fun glad to see so many people.
Forum: RV General Discussion/News 07-21-2018, 07:20 AM
Replies: 16
Views: 1,479
Posted By M McGraw
OSH weather

I live in the SE also, Tennessee. My wife and I decided to leave on Thursday and get ahead of the weather. We have the RV in a hangar in Waukesha WI just waiting for Sunday to dry out OSH. The...
Forum: Fuel Injection Systems 07-21-2018, 06:40 AM
Replies: 83
Views: 17,628
Posted By M McGraw
I have a list of people that want to see the...

I have a list of people that want to see the installation. I plan to remove the cowling one day for those interested PM a phone number.

I am currently waiting out the weather in Waukesha WI. We...
Forum: Southeast 07-05-2018, 12:07 PM
Replies: 16
Views: 1,830
Posted By M McGraw
Hangar space is always an issue. KMNV is in...

Hangar space is always an issue. KMNV is in hopes of building more, I would get on the list now by contacting them. Tom McCosh is the manager. I do not have his number.

DCU removed from breakfast...
Forum: Southeast 07-05-2018, 10:21 AM
Replies: 16
Views: 1,830
Posted By M McGraw
GA in East TN is alive and well

The list below are places I find a lot of activity. In addition to that list EAA Chapter 17 meets the first monday evening of each month at 6PM in the 501 Building at KTYS. We have food and social...
Forum: Northeast 07-03-2018, 05:59 AM
Replies: 24
Views: 2,432
Posted By M McGraw
We plan to be there

My wife and I plan to spend a couple of weeks in Maine this coming September.
Forum: RV-14 06-27-2018, 08:54 PM
Replies: 17
Views: 1,923
Posted By M McGraw
Sandy and I will arrive Saturday and stay all...

Sandy and I will arrive Saturday and stay all week. We will be parked in HBC
Showing results 1 to 62 of 367

 
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