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Search: Posts Made By: gmcjetpilot
Forum: RV General Discussion/News 09-13-2019, 12:12 PM
Replies: 26
Views: 3,094
Posted By gmcjetpilot
I just watched about an hour Sport Class Heat...

I just watched about an hour Sport Class Heat with lots of RV's.... RV-7 race #101 first, RV-8 came in 2nd. It was a very close race and 2nd overtook 1st right at the finish line. Then 3rd and 4th I...
Forum: RV-6/6A 09-12-2019, 09:48 AM
Replies: 17
Views: 1,571
Posted By gmcjetpilot
That is fine statement and common wisdom. I agree...

That is fine statement and common wisdom. I agree TG is more fun... However I have taught a lot of folks... almost 2000 hours dual given, mostly in certified trikes. However I have done a few...
Forum: RV-6/6A 09-12-2019, 09:37 AM
Replies: 17
Views: 1,571
Posted By gmcjetpilot
I am not arguing I am making a valid point. I...

I am not arguing I am making a valid point. I think your reply is just to argue since you seem to agree with me. Also you are making straw-man arguments about things I did not say or imply.
Yep we...
Forum: Propellers 09-12-2019, 09:10 AM
Replies: 67
Views: 10,255
Posted By gmcjetpilot
Can't have your cake and eat it too.... That...

Can't have your cake and eat it too....

That goes to what Vic said. But take the airplane variation out if it.

Three blade wide cord will be the king of take off and climb over 2 blades but the...
Forum: RV General Discussion/News 09-12-2019, 08:08 AM
Replies: 32
Views: 2,733
Posted By gmcjetpilot
Trying to shoot a fire extinguisher in the...

Trying to shoot a fire extinguisher in the cockpit while flying may be pointless or might extinguish you. May be an electrical fire behind the panel might be fought in flight with an open slider...
Forum: RV General Discussion/News 09-11-2019, 08:34 AM
Replies: 16
Views: 1,633
Posted By gmcjetpilot
You are 100% correct. Agree MAP is useful info...

You are 100% correct. Agree MAP is useful info on fixed or CS prop setup. My point is you can't independently change MAP without changing RPM with fixed pitch prop.. right? CS has more control and...
Forum: RV General Discussion/News 09-10-2019, 02:21 PM
Replies: 16
Views: 1,633
Posted By gmcjetpilot
I guess I should have said with fixed prop you...

I guess I should have said with fixed prop you don't have direct control of RPM for a given MAP as you would with constant speed prop. This is why fixed pitched prop certified planes don't have MAP...
Forum: RV General Discussion/News 09-10-2019, 07:09 AM
Replies: 16
Views: 1,633
Posted By gmcjetpilot
Do you have a full meal deal engine monitor? What...

Do you have a full meal deal engine monitor? What are your numbers (EGT, CHT, OT)

Search the inter-webs for the Lycoming manual for your engine. There is a power chart that gives you RPM and MAP....
Forum: RV General Discussion/News 09-09-2019, 12:28 PM
Replies: 39
Views: 2,986
Posted By gmcjetpilot
Measure the prop extension (Saber).between the...

Measure the prop extension (Saber).between the flywheel (really the ring gear assembly) and back of spinner plate sandwitched between extension and prop.

Long = 2.25"
Short = 1.75"

Why Dan needs...
Forum: RV General Discussion/News 09-09-2019, 11:02 AM
Replies: 1
Views: 193
Posted By gmcjetpilot
Sorry no help with 24v trim motor, but there are...

Sorry no help with 24v trim motor, but there are "buck converters" you can buy on eBay, not too expensive, not large and pretty light weight. There are step down (or up) DC to DC voltage converters....
Forum: RV General Discussion/News 09-08-2019, 08:43 AM
Replies: 65
Views: 7,250
Posted By gmcjetpilot
TYPO corrected....

TYPO corrected. Thanks


http://www.vansairforce.com/community/showpost.php?p=1371491&postcount=24
Forum: RV General Discussion/News 09-08-2019, 08:37 AM
Replies: 13
Views: 1,182
Posted By gmcjetpilot
I think that is great. I thought about this as...

I think that is great. I thought about this as well.... interested. I don't think this is a hard thing to do. There are several threads on this and wheels that will convert. The down side is more...
Forum: RV General Discussion/News 09-08-2019, 08:22 AM
Replies: 39
Views: 2,986
Posted By gmcjetpilot
Open up the jet in the carb. Again get the carb...

Open up the jet in the carb. Again get the carb part number (dash number will very). Find out if you have a lean version of the carb. You can buy richer main jets for the MS 4-5 carb. It does not...
Forum: RV General Discussion/News 09-08-2019, 07:26 AM
Replies: 39
Views: 2,986
Posted By gmcjetpilot
What happened to OP 727TT? Ha ha. Dan what are...

What happened to OP 727TT? Ha ha.

Dan what are you going for, long or short cowl. Is there some significant cooling difference? At this point nothing he can do about changing the cowl (economically)...
Forum: RV Friends Who Have Passed On 09-07-2019, 08:27 AM
Replies: 6
Views: 2,445
Posted By gmcjetpilot
Sorry to hear this. The link above Orlando dot...

Sorry to hear this. The link above Orlando dot com has extensive coverage of airplane accidents
Forum: RV General Discussion/News 09-04-2019, 11:39 AM
Replies: 65
Views: 7,250
Posted By gmcjetpilot
The Vans aircraft (edit) ARE certified and...

The Vans aircraft (edit) ARE certified and designed for aerobatic category load factors. Cessna's are certified and designed to normal and utility category load factors (which are lower than...
Forum: RV General Discussion/News 09-03-2019, 07:52 AM
Replies: 39
Views: 2,986
Posted By gmcjetpilot
Seems we have two conversations going. I have...

Seems we have two conversations going. I have some free advice and worth every penny (repeat of other comments in no particular order of importance).

425F is within Lyc limits but I am a big fan of...
Forum: RV General Discussion/News 09-01-2019, 02:53 PM
Replies: 110
Views: 8,559
Posted By gmcjetpilot
1) No ILS should be unstable. They are flight...

1) No ILS should be unstable. They are flight test by the FAA to high standards. There's something seriously wrong with the ILS if it's like a rollercoaster. it should be reported. If it doesn't meet...
Forum: RV General Discussion/News 09-01-2019, 10:55 AM
Replies: 110
Views: 8,559
Posted By gmcjetpilot
Yes this expert says ILS is more accurate than...

Yes this expert says ILS is more accurate than GPS even with WAAS... ILS it's called a "Precision Approach" for a reason. Do you have some data that shows ILS is inaccurate? Rhetorical. The answer is...
Forum: RV-6/6A 08-30-2019, 12:07 PM
Replies: 17
Views: 1,571
Posted By gmcjetpilot
Mel with your signature ... I'll start off and...

Mel with your signature ... I'll start off and say you are right, but.....

How much shorter my friend? I can see the geometry and understand the aerodynamics, but landing short takes a lot more...
Forum: RV General Discussion/News 08-30-2019, 09:13 AM
Replies: 110
Views: 8,559
Posted By gmcjetpilot
Forgive if this was posted already: They talk...

Forgive if this was posted already: They talk about FAA reducing VOR's and more GPS outages from military activity....
Forum: RV-7/7A 08-29-2019, 05:34 PM
Replies: 52
Views: 4,081
Posted By gmcjetpilot
That won't work with the alternators with...

That won't work with the alternators with internal voltage regulators.

Most avionics today can take over 32 volts. They have their own voltage Regulators built into the Avionics.

You can convert...
Forum: RV General Discussion/News 08-29-2019, 05:21 PM
Replies: 110
Views: 8,559
Posted By gmcjetpilot
Bob. The 757767 came out in the early 80s and...

Bob. The 757767 came out in the early 80s and there was no GPS. Most have been upgraded with dual GPS.

You're correct out over the ocean IRU was all you had and HF radio for voice position reports....
Forum: RV General Discussion/News 08-29-2019, 12:01 PM
Replies: 11
Views: 1,053
Posted By gmcjetpilot
I bought some MR16 55 Watt substitutes from...

I bought some MR16 55 Watt substitutes from https://flyleds.com/ (forum advertiser). Far brighter than a Halogen with less power. I have original shear wing tips with small lens. I was able to get...
Forum: RV General Discussion/News 08-28-2019, 12:48 PM
Replies: 110
Views: 8,559
Posted By gmcjetpilot
You are correct but would not say no effect. It...

You are correct but would not say no effect.

It depends... a typical Boeing or Airbus has three IRU (inertial reference unit). They are totally independent of any outside navigation using laser...
Forum: RV General Discussion/News 08-28-2019, 12:24 PM
Replies: 110
Views: 8,559
Posted By gmcjetpilot
VFR I would forgo VOR/LOC/GS/MB/ADF. You can...

VFR I would forgo VOR/LOC/GS/MB/ADF. You can always add it later if you desire or buy the latest greatest IFR certified GPS. VFR GPS have all kinds of IFR Nav data. I suppose in an emergency you...
Forum: RV General Discussion/News 08-27-2019, 11:40 AM
Replies: 12
Views: 1,257
Posted By gmcjetpilot
The only issue is non standardized cockpit. With...

The only issue is non standardized cockpit. With that said yes a model (rv6/7 or rv4/8) that has performance, handling of an RV would be cool.

My interest is teaching. Not up on latest PC flight...
Forum: RV-7/7A 08-26-2019, 11:44 AM
Replies: 52
Views: 4,081
Posted By gmcjetpilot
Darn you and your facts and demonstrations and...

Darn you and your facts and demonstrations and irrefutable evidence... Ha ha.

To be fair the IGN is not "direct" field power. It is through semil-conductor (transistor) that may indeed kill the...
Forum: RV General Discussion/News 08-26-2019, 11:11 AM
Replies: 17
Views: 1,350
Posted By gmcjetpilot
This is not primer wars... This is based on...

This is not primer wars... This is based on Lycoming and historical data. No one is saying 400F is an emergency. Vic that is a strawman argument. Really. 400F max "operational" has been a...
Forum: RV General Discussion/News 08-26-2019, 10:51 AM
Replies: 17
Views: 1,350
Posted By gmcjetpilot
Dang thanks you are right. Thanks The YELLOW...

Dang thanks you are right. Thanks

The YELLOW line to him is 400F.... That has been my policy for decades based on Lycoming Flyer Articles. It is for long life not an absolute MAX. If you listen to...
Forum: RV General Discussion/News 08-25-2019, 07:55 AM
Replies: 17
Views: 1,350
Posted By gmcjetpilot
Solve High CHT with Timing

EDIT: Meant High CHT

I found this YouTube channel Savvy Aviation, Mike Busch. These are webinars hosted by the EAA over the last few years. See video link below. It's about pre-ignition but he...
Forum: RV-7/7A 08-22-2019, 02:59 PM
Replies: 52
Views: 4,081
Posted By gmcjetpilot
How do you cut field voltage? Field is internal....

How do you cut field voltage? Field is internal. The only thing you have access to is +B (output). The connector on back is typically the "ignition" (wake/sleep) and low volt light. Just asking....
Forum: RV-4 08-21-2019, 12:46 PM
Replies: 17
Views: 1,419
Posted By gmcjetpilot
Gel-coat is hard colored resin they slather in...

Gel-coat is hard colored resin they slather in the mold when they lay it up. This gives an even pinhole free surface. It is very hard and brittle and will crack over time. Heat, vibration,...
Forum: RV General Discussion/News 08-21-2019, 10:54 AM
Replies: 6
Views: 586
Posted By gmcjetpilot
I am not sure but Greenland is for sale......

I am not sure but Greenland is for sale... Kidding.

What is GA like in Iceland? I know it is critical part of crossing Atlantic for smaller planes.... Reykjavík–Keflavík Airport. I landed there...
Forum: RV-7/7A 08-21-2019, 10:47 AM
Replies: 21
Views: 2,951
Posted By gmcjetpilot
CR does reduce detonation margins. Detonation is...

CR does reduce detonation margins. Detonation is not detectable by pilot and can cause catastrophic failure (hole in piston). It is avoided by rich mixture and reduced power.

Engines in...
Forum: RV-7/7A 08-21-2019, 10:39 AM
Replies: 52
Views: 4,081
Posted By gmcjetpilot
HEAT IS THE KILLER.... Shield the Alternator for...

HEAT IS THE KILLER....
Shield the Alternator for exhaust pipe heat as much as possible
Air blast tube on regulator (back) is a good idea.
Balance your prop... fixed or CS... less vibe's the...
Forum: Safety 08-20-2019, 01:34 PM
Replies: 12
Views: 1,742
Posted By gmcjetpilot
Don't Stall, ever never ever. Use all your...

Don't Stall, ever never ever.
Use all your skills, S-turns, forward slips.....
Fly the plane all the way into the crash as long as you can. (Bob Hoover)
Slow to min controllable speed before impact /...
Forum: RV General Discussion/News 08-19-2019, 11:17 AM
Replies: 56
Views: 4,701
Posted By gmcjetpilot
You mean MPG? With the fancy electronic engine...

You mean MPG? With the fancy electronic engine monitoring today you can get real time economy based on many factors, including ground speed.

There is no way to answer your question because of so...
Forum: Alternative Engines 08-17-2019, 06:05 PM
Replies: 34
Views: 12,609
Posted By gmcjetpilot
Post Well this went into full thread drift. Back to...

Well this went into full thread drift. Back to Delta Hawk. That's pretty interesting they want you to pay 80 to $90,000 to be a beta tester and use your airplane to prototype different...
Forum: Safety 08-16-2019, 12:52 PM
Replies: 16
Views: 3,468
Posted By gmcjetpilot
ELT on/off/armed aside he had a Personal Locator...

ELT on/off/armed aside he had a Personal Locator Beacon or PLB that he was getting text messages... better than ELT.

There seems to be a real focus on a bug shirt. OK. Winter? Hypothermia is your...
Forum: RV General Discussion/News 08-16-2019, 10:06 AM
Replies: 21
Views: 8,485
Posted By gmcjetpilot
I read through the thread.... my input trying to...

I read through the thread.... my input trying to be useful.

AOG - Post your predicament here ask for help when it happens.

EAA - If member find a chapter nearby. Typically EAA lists chapter contact...
Forum: RV General Discussion/News 08-14-2019, 11:32 AM
Replies: 23
Views: 3,509
Posted By gmcjetpilot
If you have a wood prop that is something to...

If you have a wood prop that is something to worry about with any rain. Aluminum props can get eroded in rain. That is why you keep the pain on it. The fancy composite props have SS leading edge but...
Forum: Safety 08-13-2019, 11:18 AM
Replies: 16
Views: 3,468
Posted By gmcjetpilot
Canada dispatched a C130 and helicopter.... I...

Canada dispatched a C130 and helicopter.... I hope he does not have to pay for it...

He was almost impaled by tree that went though cockpit right next to his left leg.

With out a chute he would...
Forum: RV General Discussion/News 08-13-2019, 11:11 AM
Replies: 54
Views: 5,412
Posted By gmcjetpilot
Avgas has a lower and more uniform vapor pressure...

Avgas has a lower and more uniform vapor pressure than automotive gasoline so it remains in the liquid state despite the reduced atmospheric pressure at high altitude, thus preventing vapor...
Forum: RV General Discussion/News 08-08-2019, 01:51 PM
Replies: 92
Views: 8,481
Posted By gmcjetpilot
Has anyone looked at the nose of a Piper...

Has anyone looked at the nose of a Piper Tri-pacer. it was one of the first Trikes. The wheel and tire are huge, the oleo strut is beefy and braced. A friend was in the short wing piper club told me...
Forum: RV General Discussion/News 08-05-2019, 04:25 PM
Replies: 92
Views: 8,481
Posted By gmcjetpilot
You make great points. If you're not close to...

You make great points. If you're not close to installing the engine mount and nose gear you can wait. I don't know what the lead time is on it.

As far as statistics nothing official. If someone's...
Forum: Safety 08-04-2019, 02:53 PM
Replies: 20
Views: 2,776
Posted By gmcjetpilot
I agree with you 100%, but... Not all pilots have...

I agree with you 100%, but... Not all pilots have your experiences and skill. RVs are very low drag and fast. The sink rate can get breathtaking at slow back side airspeed while feeling controllable...
Forum: RV General Discussion/News 08-02-2019, 08:00 AM
Replies: 65
Views: 6,720
Posted By gmcjetpilot
How about links to these seminal RV's? Please

How about links to these seminal RV's? Please
Forum: Safety 08-02-2019, 07:44 AM
Replies: 20
Views: 2,776
Posted By gmcjetpilot
Plus + 1. You answered your own question. It is...

Plus + 1. You answered your own question. It is legal. Insurance is another question. Yours and his judgement call.

I have been asked to fly in owner SEL planes for Flight reviews. or Inst Comp...
Forum: RV General Discussion/News 08-02-2019, 07:27 AM
Replies: 92
Views: 8,481
Posted By gmcjetpilot
You could always put the nose wheel on the...

You could always put the nose wheel on the back... where it belongs... Ha ha :D

I appologize.

What is the big difference with the new gear?
Is it more draggy?
Is it heaver?
How much testing has...
Forum: RV General Discussion/News 07-31-2019, 11:05 AM
Replies: 66
Views: 11,112
Posted By gmcjetpilot
Did not read all the post but was it not the bad...

Did not read all the post but was it not the bad weather on Friday and Saturday before the show which caused most of the issues... Even after WX the ground was too wet to park planes. Oshkosh has...
Forum: RV-6/6A 07-27-2019, 03:55 PM
Replies: 20
Views: 4,212
Posted By gmcjetpilot
Yep slowing down (especially with a tail wind,...

Yep slowing down (especially with a tail wind, can be nice and save fuel... and as you say more time for sightseeing and less engine noise. 5.5GPH is pretty good.... 750 Stat miles in 5 hours with 1...
Forum: RV General Discussion/News 07-27-2019, 09:53 AM
Replies: 7
Views: 644
Posted By gmcjetpilot
It likely is not as bad as you think and no one...

It likely is not as bad as you think and no one will notice... the parts are standard Van's made on molds... Post a pic so the peanut gallery can judge it... Ha ha.

Comment made about getting the...
Forum: RV General Discussion/News 07-21-2019, 02:10 PM
Replies: 3
Views: 493
Posted By gmcjetpilot
What airframe? RV-? Call Hartzell. You may have...

What airframe? RV-? Call Hartzell. You may have to wait two weeks, due to Oshkosh. I could not find the exact blade and engine combo...

I found one good match.... for 180HP Commanche with your...
Forum: RV-7/7A 07-21-2019, 01:50 PM
Replies: 2
Views: 757
Posted By gmcjetpilot
You can leave it or You can fix it. Fix -...

You can leave it or You can fix it.

Fix - remove the fairing you want to move. Glass over the old holes and trim the tire opening to fit... you may have to glass in the larger tire to fairing gap...
Forum: Safety 07-20-2019, 08:05 PM
Replies: 15
Views: 4,948
Posted By gmcjetpilot
Thanks Carl for the report. Inflight fire every...

Thanks Carl for the report. Inflight fire every Pilots nightmare. I'm glad the outcome was not tragic.

There was a similar accident with an RV8 N41VA 20 years ago. This was also in Oregon. Total...
Forum: RV General Discussion/News 07-20-2019, 07:37 PM
Replies: 7
Views: 848
Posted By gmcjetpilot
It's experimental you can set what you want, with...

It's experimental you can set what you want, with a big caveat. 2700 or 2775 rpm is not a big deal. If you want to be conservative 2700. You did your research well.

You make more horsepower and...
Forum: RV General Discussion/News 07-20-2019, 07:09 PM
Replies: 2
Views: 611
Posted By gmcjetpilot
It depends on engine, carb or FI, Mag vs EI, prop...

It depends on engine, carb or FI, Mag vs EI, prop CS vs Fixed, instruments basic or full EFIS with autopilot, upholstery, paint, quality of build, age and hours on the components and on. $100,000 is...
Forum: RV General Discussion/News 07-18-2019, 11:40 AM
Replies: 20
Views: 4,331
Posted By gmcjetpilot
I'll second that. Carl knows his stuff on...

I'll second that. Carl knows his stuff on aero-elasticity (flutter). Besides weight (affecting payload), increased wing bending (affecting ability to do aerobatics) and reduced flutter margins, I'll...
Forum: RV General Discussion/News 07-18-2019, 11:29 AM
Replies: 18
Views: 2,953
Posted By gmcjetpilot
If you don't like it shut down and get out and...

If you don't like it shut down and get out and check it out. If you are parking in the RV area you will taxi mostly on hard surface until you get to grass parking area. The hard surface to grass...
Forum: RV General Discussion/News 07-18-2019, 11:23 AM
Replies: 15
Views: 1,632
Posted By gmcjetpilot
Even with holes in it, it is part of the...

Even with holes in it, it is part of the structure and will pick up loads. Take the panel out and push on the sides of the fuselage where the panel was you took out. The fuselage will flex more than...
Forum: RV-7/7A 07-18-2019, 09:43 AM
Replies: 3
Views: 1,075
Posted By gmcjetpilot
Good info on both parts, engine mount length and...

Good info on both parts, engine mount length and change of ownership of sam james.... Hope Sam is well. Cool guy....
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