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Search: Posts Made By: grubbat
Forum: Traditional Aircraft Engines 10-14-2018, 05:33 AM
Replies: 7
Views: 650
Posted By grubbat
Oils

There are some automotive oils that are really good at cleaning due to the detergent package. Maybe after draining your regular aviation oil, put some rotella diesel oil 20w50 and fly it for a couple...
Forum: RV General Discussion/News 10-13-2018, 07:31 AM
Replies: 37
Views: 2,995
Posted By grubbat
Avidyne got me

I know how you feel. I purchased a brand new Avidyne 540 and have it in a box unregistered waiting to get it installed in my Comanche by "certified" shop. Avidyne announced a rebate if you wanted to...
Forum: Traditional Aircraft Engines 10-04-2018, 10:25 AM
Replies: 45
Views: 13,131
Posted By grubbat
Alternate air door

I had an alternate air door come off a certified plane and get lodged ahead of fuel servo. It was the spring loaded type connected to a push/pull cable. If i were designing one, I'd probably make it...
Forum: Glass Cockpit 10-04-2018, 10:16 AM
Replies: 14
Views: 2,285
Posted By grubbat
IFLY

Larry,
Ive got an IFLY 740 in the Cub, Comanche, and RV-9. Its a great moving map GPS and so easy to use. The annual subscription is for IFR/VFR is much more affordable than say Garmin and I include...
Forum: VAF Classifieds (posts in here deleted after 30 days) 10-04-2018, 09:10 AM
Replies: 7
Views: 585
Posted By grubbat
Lexan

Bob,
Just wondering if it would be better to go with Lexan for the windscreen. I understand that plexiglass is preferred for the most part so folks can crack it for emergency. However, the sliding...
Forum: RV Ongoing Maintenance Issues 09-24-2018, 05:42 PM
Replies: 21
Views: 1,965
Posted By grubbat
Break-in

If the cylinders weren’t broken in properly, they may never break in no matter how much time they have on them. Assuming valves are good, pull them, crosshatch the cyl, install new rings, then break...
Forum: RV General Discussion/News 09-23-2018, 07:53 AM
Replies: 16
Views: 7,544
Posted By grubbat
Gaskets no more

I eventuality cut off the ends of intake tubes and went with o-rings from Ross Farnham and sealing problems went away. No more gaskets to worry about.
Forum: Traditional Aircraft Engines 09-21-2018, 01:33 PM
Replies: 25
Views: 1,514
Posted By grubbat
Prop driving engine

Lycoming rep advised me to keep manifold pressure at 18" or above to prevent prop from driving engine. I used to think it was around 15" min but not so. Prop driving engine is not good. Constant...
Forum: RV-9/9A 09-20-2018, 06:42 AM
Replies: 8
Views: 1,248
Posted By grubbat
Better

The RV-9 tailwheel model is easier to land than the Citarbria, the Cub, the Taylorcraft, the RV-3, and the Cessna 140. It is a non-event. Van got the balance right.
Forum: RV General Discussion/News 09-19-2018, 01:01 PM
Replies: 7
Views: 1,529
Posted By grubbat
Response

The classes will be 5 days in 2019. Right now, its 4 days of classroom the first week, 3 days of hands on engine work the second week.

Its beautiful country up here and I'm sure there is lots that...
Forum: RV General Discussion/News 09-19-2018, 07:09 AM
Replies: 7
Views: 1,529
Posted By grubbat
2 week class now, 1 week class coming in Feb 2019

The current class is 2 weeks and the instructor is top notch with lots of experience in General Aviation, Experimental, and Lycoming factory. The first week is all classroom with the exception of a...
Forum: RV General Discussion/News 09-16-2018, 10:57 AM
Replies: 54
Views: 4,315
Posted By grubbat
Data needed to help them make a decision about your safety...

I'm not a doctor and don't offer advice proposing to be a doctor but I do know a little bit about government bureaucracy and the need to keep you "safe", so I would suggest that you don't do the...
Forum: Glass Cockpit 09-11-2018, 08:10 PM
Replies: 23
Views: 2,487
Posted By grubbat
Exactly

....and this is EXACTLY what Garmin wants. That being said, the industry needs competition to keep the players investing in innovation which drives prices and features that we so desire. I wouldnít...
Forum: ADS-B 09-11-2018, 06:27 PM
Replies: 14
Views: 1,142
Posted By grubbat
Will add L3 to panel with Avidyne 540

Iím overhauling a Comanche 260 and will be putting the L3 in the panel with a Avidyne 540 later this month. Iíve heard that the L3 is mil spec and the separate screen is a bonus. We will see.

For...
Forum: Fuel Injection Systems 09-09-2018, 11:24 AM
Replies: 104
Views: 14,733
Posted By grubbat
Clint at Vetterman

On my first set, I tig welded the ends and it looked ok but the angle wasn't perfect. So, I found a set of tuned induction tubes for my "forward -facing-angle-valve-converted-parallel-valve lycoming,...
Forum: RV General Discussion/News 09-02-2018, 05:55 AM
Replies: 73
Views: 6,555
Posted By grubbat
Lead free

Lead free racing fuel has been around for a while at Sunoco. Granted itís high cost, but if I recall, it was something like 110 octane. If the stuff would work in AC, then I wonder what the cost...
Forum: RV General Discussion/News 09-01-2018, 08:48 PM
Replies: 359
Views: 77,766
Posted By grubbat
Either or...

Bill,
Iím not so sure it has to be ďeither - orĒ on the occupancy. Just order the size cabin configuration you want. The design could be scalable. My J-3 has a similar wingspan as the super cub....
Forum: ADS-B 08-31-2018, 01:58 PM
Replies: 19
Views: 3,909
Posted By grubbat
What to look forward to

These letters are what we can expect to look forward to when our adsb starts acting up. They shouldn't act up, but then again, seems like we all have issues with avionics at some point. Once it...
Forum: RV-6/6A 08-24-2018, 06:17 AM
Replies: 29
Views: 5,386
Posted By grubbat
Pics

Carl, any pics of the side exhaust?
Craig
Forum: RV General Discussion/News 08-14-2018, 04:21 AM
Replies: 359
Views: 77,766
Posted By grubbat
65hp cub

Doug,
I did the same thing. (Picked up an original 65hp cub this summer).
The cub definitely opened up a part of the flying experience that the RV can't do. The simplistic and low cost flying along...
Forum: Glass Cockpit 07-31-2018, 07:06 PM
Replies: 14
Views: 1,297
Posted By grubbat
Certified lead

Many certified glass panels will also have backup steam airspeed and altimeter gauges. Is it necessary? Maybe not if you only fly VFR and can land your plane without looking at airspeed gauge or that...
Forum: Traditional Aircraft Engines 07-31-2018, 07:19 AM
Replies: 47
Views: 4,567
Posted By grubbat
In Flordia, multi weight Rotella....

In Florida, I'd probably go with Rotella non-synthetic 15w40 and maybe add camguard to make ya feel better. Of course you may want to top it off with AVBlend for icing on the cake.
Forum: Traditional Aircraft Engines 07-25-2018, 02:42 PM
Replies: 1
Views: 545
Posted By grubbat
Your Preferred Bolt Stretch Tool

Just seeking some input for choosing a bolt stretch measuring tool for things like rod bolts and such. What tool/tools do you use or prefer?
Thanks,
Craig
Forum: RV General Discussion/News 07-21-2018, 06:43 AM
Replies: 16
Views: 1,402
Posted By grubbat
Beautiful morning

At 7am, beautiful morning, nice blue sky's south to Pine Mt, I think I'll make a fuel run. All that talk about bad weather was simply crazy. Walk out the door at 7:55 am and to the south, the rich...
Forum: Fuel Injection Systems 06-22-2018, 07:58 PM
Replies: 104
Views: 14,733
Posted By grubbat
Great Product

Installed mine on M1B tubes. Had to chop them then reweld. All I can say is that this is a great product. Engines runs great after being plagued with induction leaks from poor custom made tubes....
Forum: RV General Discussion/News 05-31-2018, 04:54 PM
Replies: 50
Views: 19,955
Posted By grubbat
Update

Its been 6 months since last update so was just wondering how everything has been progressing? :)
Forum: RV General Discussion/News 05-31-2018, 04:18 PM
Replies: 13
Views: 1,862
Posted By grubbat
options

Ed,
Steve Smith was working on a wing design for the -8 that may improve the ride. I'm assuming that you want to stay on the Experimental side of the airplane world or I would suggest something...
Forum: Safety 05-30-2018, 09:31 AM
Replies: 20
Views: 2,458
Posted By grubbat
Fire Bottle

Seems like once the flame has penetrated the cabin, it wont do much good having an extinguisher. Now if you were on the ground and trying to save a plane from a fire, then retrieving an extinguisher...
Forum: Safety 05-30-2018, 09:19 AM
Replies: 20
Views: 2,458
Posted By grubbat
Fire Bottle

I wonder if one could run a stainless tube to the engine like the racecar guys and have a separate halon bottle for that. It may not help much with all the wind but it may buy you a minute or two....
Forum: RV Ongoing Maintenance Issues 05-26-2018, 12:28 PM
Replies: 12
Views: 1,693
Posted By grubbat
Injector swapping

After burning a bunch of fuel, cowling and un-cowling the engine, spending a small fortune on different injector orifices from airflow performance, I would just die if someone swapped my injectors...
Forum: RV-7/7A 05-15-2018, 05:01 AM
Replies: 37
Views: 7,619
Posted By grubbat
Love my BA

I love my BA prop. Purchased from Vans and no regrets. Had a FP prop on my -6 and it was ok but the CS prop gives ultimate performance for the excellent Vans design. Taking off and being at pattern...
Forum: RV General Discussion/News 04-29-2018, 07:33 PM
Replies: 26
Views: 3,473
Posted By grubbat
10599 fits

I have piston squirter engine and the 10599 oil cooler not only fits the rv-7/9 baffle, it does a fantastic job keeping the oil temp in check. Extruded alum angle across the top of baffle and on one...
Forum: RV General Discussion/News 03-31-2018, 05:02 PM
Replies: 30
Views: 3,595
Posted By grubbat
Another gee wiz

Another thing that may bewilder the non-Vanís group is that on the Vanís designs, Vno is based on indicated airspeed regardless of altitude and Vne is based on true airspeed. Let them chew on that...
Forum: RV General Discussion/News 01-30-2018, 09:18 AM
Replies: 112
Views: 14,514
Posted By grubbat
AIRSPeed

Vno is indicated and Vne is true. Interesting huh?

Somewhere north of 8500ft, Indicated becomes secondary to True AIRSPeed.
Forum: Electronic Ignition Systems 01-26-2018, 10:00 AM
Replies: 187
Views: 25,378
Posted By grubbat
Permenant Magnet

Ross,
Ever though about developing a very simple (if there ever was such a thing) permanent magnet setup that would provide just enough voltage to fire your electronic ignition in case there was an...
Forum: RV General Discussion/News 01-25-2018, 09:40 AM
Replies: 22
Views: 2,745
Posted By grubbat
Avidyne

A lot of folks like the Avidyne units. One reason is the ability use airways easier over the 430. I thought about Avidyne but Iím lazy and I just wanted two Waas units for the twinco without too much...
Forum: RV General Discussion/News 01-25-2018, 06:48 AM
Replies: 22
Views: 2,745
Posted By grubbat
Cost to upgrade

In december 2017, I paid $3500.00 to upgrade a straight 430 to WAAS. In Jan 2018, it cost me $3750.00 to do another one. I had to go through an official dealer.
Forum: Traditional Aircraft Engines 01-17-2018, 11:21 AM
Replies: 53
Views: 12,682
Posted By grubbat
Tell me more

Tim,
How would this work? Tap into positive oil pressure somewhere and Rout to the cap?
Craig
Forum: RV-9/9A 01-13-2018, 10:05 AM
Replies: 6
Views: 1,372
Posted By grubbat
RV-9 TW is unique

Everything I go to the hanger and see my RV-9, I get a tingling sensation down my legs. The kind of sensation that says yea, I did the right thing. Knowing that the RV-9 has the best safety record...
Forum: Traditional Aircraft Engines 01-06-2018, 09:51 PM
Replies: 16
Views: 2,298
Posted By grubbat
Marvel in the fuel

I wonder if marvel oil in the fuel also reduces octane and reduces detonation margin?
Forum: Safety 01-04-2018, 08:06 PM
Replies: 36
Views: 5,097
Posted By grubbat
Link to flying

Ivo,
Here is the link to how many are flying by type:

https://www.vansaircraft.com/public/first-flights.htm
Forum: Safety 01-04-2018, 06:21 PM
Replies: 36
Views: 5,097
Posted By grubbat
Humm

With the -6 being a scratch built and the -7 being prepunched among other things, I would have expected the -6 to have more occurrences over the -7 especially given the fact that there are almost...
Forum: Electronic Ignition Systems 01-04-2018, 03:03 PM
Replies: 61
Views: 6,592
Posted By grubbat
interesting

I was running 1 tooth ATDC till i got a kickback that broke my new high torque starter then I went to 2 tooths (teeth) ATDC and no more kickbacks. However, Im guessing I'm leaving some HP on the...
Forum: Safety 01-04-2018, 02:50 PM
Replies: 36
Views: 5,097
Posted By grubbat
by type

What does the data show by type? Are they all the same or does one type lend itself to being less accident prone?
Forum: RV General Discussion/News 01-04-2018, 12:53 PM
Replies: 27
Views: 4,364
Posted By grubbat
Gear

In my humble opinion, certified planes have a lot more robust landing gear setup over Van's RV-3 thru RV-12 designs. Not sure how the -14 would measure up.
Forum: RV General Discussion/News 01-03-2018, 11:04 AM
Replies: 7
Views: 765
Posted By grubbat
Proseal

I can not fathom a worse smell that the smell of burning proseal while attempting to weld a piece of alum. Itís kinda hard to describe. You will definitively remember it though.
Forum: RV-9/9A 01-03-2018, 06:02 AM
Replies: 27
Views: 5,494
Posted By grubbat
Climb

Whatís your mission? Mine is time to climb baby. Io360 with CS Prop on the RV-9 equals a climb that make me smile every time. Iím not a speed demon and I am very respectful of the VNO VNE limitations...
Forum: RV General Discussion/News 12-29-2017, 04:22 PM
Replies: 14
Views: 1,760
Posted By grubbat
Grounded

If GPS is going to be cut off months at a time, why would the FAA decommission VOR's? Is there another motive? With the FAA emphasis being on safety, these actions appear to be counterproductive....
Forum: RV General Discussion/News 12-28-2017, 07:13 PM
Replies: 81
Views: 9,326
Posted By grubbat
Me too

I always run the left tank dry when on cross country and left hand pattern airports in the plan. On our -9, six gallons is another hour of flying but I'm looking for a place to refuel around 8...
Forum: RV General Discussion/News 12-08-2017, 05:51 PM
Replies: 10
Views: 1,801
Posted By grubbat
Stifferners

I bought the stiffeners advertised and installed them with a bunch of tie wraps due to cold weather. It helped but not completely. I'm going to follow Allen's lead and make up some Oak stifferners...
Forum: RV-9/9A 12-03-2017, 05:58 AM
Replies: 17
Views: 2,917
Posted By grubbat
RV-9 travel distance non-stop

Yesterday I flew non-stop from 82IS Landings Condominium Airpark (northwest of Chicago) to KPIM Callaway Gardens (northeast of Columbus Georgia). Total distance was approx 585 Nautical miles (670...
Forum: Traditional Aircraft Engines 12-01-2017, 12:26 AM
Replies: 17
Views: 2,015
Posted By grubbat
Same problem

I had a similar problem and the second time it broke my starter. I too had timing at one notch or 2.4 degrees ATDC with my Pmag. I went another notch ATDC which equals 4.83 degrees and problem went...
Forum: RV General Discussion/News 11-30-2017, 06:13 AM
Replies: 45
Views: 10,491
Posted By grubbat
Too real

That young lady sounded like my daughter. She was following all those crazy instructions and changes and repeating everything just like she was taught. I could almost feel myself get flustered and...
Forum: RV General Discussion/News 11-29-2017, 09:40 PM
Replies: 82
Views: 16,319
Posted By grubbat
Good points

Very good points Carl.
Thanks,
Forum: RV General Discussion/News 11-29-2017, 09:19 PM
Replies: 82
Views: 16,319
Posted By grubbat
Groundhog day

Vans doesn't care what we want them to build. Every year, this thread comes up and lots of creative stuff comes out but nothing or nobody admits to being interested. Nevertheless, I'll bite but I...
Forum: RV-9/9A 11-29-2017, 08:46 PM
Replies: 9
Views: 2,077
Posted By grubbat
Yep

That's about where I'm at in level flight all in but I'm running ~180hp.
Pmag ignition timed 5deg ATDC so lost some hp there. Got 196 mph TAS level flight once in smooth air and under 1600lbs.
Forum: RV General Discussion/News 11-29-2017, 08:49 AM
Replies: 39
Views: 9,880
Posted By grubbat
Thanks Mark

Mark,
Would really appreciate seeing the .pdf.
I've thought about other options besides pine / oak trim molding. One is milling alum blocks the shape of the airfoil and bolting on the gear somehow....
Forum: RV General Discussion/News 11-24-2017, 08:01 PM
Replies: 14
Views: 1,963
Posted By grubbat
King of climb?

The -7 king of climb? Really?
I would have thought that the additional 3ft of wing would give the -9 the edge, all things considered. Guess you learn something everyday. :)
Forum: Trip Write-ups 11-24-2017, 11:41 AM
Replies: 18
Views: 2,821
Posted By grubbat
Good turnout

Lots of RV folks here today. My first time to Jack Edwards and very nice place to visit.
Forum: Trip Write-ups 11-23-2017, 06:42 AM
Replies: 18
Views: 2,821
Posted By grubbat
Weather looking VFR

Weather is looking nice so this is looking like a doable trip with seafood to boot! Lots of MOAs down around there. Any advise from any LULU veterans on flying in the area?
Thanks.
Forum: RV General Discussion/News 11-21-2017, 05:44 PM
Replies: 10
Views: 1,801
Posted By grubbat
Allan, Where did you source the Oak? Im thinking...

Allan,
Where did you source the Oak? Im thinking about going with Oak on my gear. Did you find molding in Oak?

Funny, I was thinking about titanium also but it looks like you already checked that...
Forum: Alternative Engines 11-21-2017, 09:38 AM
Replies: 79
Views: 20,216
Posted By grubbat
Other half

Over the years, seen lots of auto engine ideas. However, the real challenge is converting those horses to something that the prop can use. Iíd be interested in seeing the portion between the engine...
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