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Search: Posts Made By: grubbat
Forum: RV Ongoing Maintenance Issues 11-24-2022, 06:46 AM
Replies: 21
Views: 2,736
Posted By grubbat
What Bruce suggested

I would second what Bruce recommended belowÖ
Forum: Safety 11-13-2022, 06:29 AM
Replies: 6
Views: 1,058
Posted By grubbat
Responding

Having extracted a lot of folks over the past 30 yr in traffic accidents and so forth (and enough PTSD to carry with me to retirement), I donít recall specific training for aircraft accidents,...
Forum: RV General Discussion/News 11-01-2022, 07:38 AM
Replies: 45
Views: 3,701
Posted By grubbat
Max Conrad

Back in the day, Max Conrad would cross the oceans squeezing as much mpg as he could out of those comanches. I heard he would fly on the deck and pull the prop all the way back on the lycomings. He...
Forum: RV-15 10-27-2022, 07:28 PM
Replies: 50
Views: 9,219
Posted By grubbat
Buy and fly

I got tired of waiting on the -15 and bought a Maule. Itís the truck and stol mission. Rv-9 for all the other stuff. As far as insurance, itís liability only.
When I had the high dollar avionics in...
Forum: Alternative Engines 10-24-2022, 07:58 AM
Replies: 51
Views: 10,593
Posted By grubbat
Great ideas

If I had a dollar for every promising advertisement I’ve seen in engines ( and gear reductions) over the past 40yr, I’d be a wealthy comrade. I can’t help but wonder what the next 50yr will bring...
Forum: Safety 10-18-2022, 07:36 AM
Replies: 34
Views: 4,093
Posted By grubbat
Firewall side

Iíve wondered if a Ceramic coating applied to the engine side of the stainless firewall would be effective at buying some time or is the ceramic too brittle for the flexible stainless firewall....
Forum: Safety 09-07-2022, 06:19 PM
Replies: 291
Views: 44,007
Posted By grubbat
Rudder change

Thanks for the note Bill. I had missed that.
I changed to the -8 balanced rudder years ago and havenít looked back.
Forum: Safety 08-23-2022, 06:10 AM
Replies: 291
Views: 44,007
Posted By grubbat
Data says it all

In my humble opinion, having to use TAS when flying a RV coupled with a narrow margin rudder is a recipe for more inflight failures in future. Data is not emotional and itís going to happen. Thatís...
Forum: Safety 08-17-2022, 06:41 PM
Replies: 291
Views: 44,007
Posted By grubbat
Margins for the zipper rudder

Every design if operated within the design margin is safe. HOWEVER, some designs have narrower margins. The unzipped rudder seems to have a rather unpleasant consequence if the design is exceeded....
Forum: Alternative Engines 06-19-2022, 08:33 PM
Replies: 75
Views: 17,823
Posted By grubbat
IAS and TAS

After all these years, Iím amazed that we are still discussing the IAS and TAS limitations on the RV. Last week I had this same discussion with a know-it-all airline pilot who simply did not agree...
Forum: RV-6/6A 05-18-2022, 08:11 PM
Replies: 17
Views: 1,986
Posted By grubbat
Avoid -7 rudder

Avoid the -7 rudder and get the -8.
The -8 rudder has more margins than the -7 zipper.
Forum: Traditional Aircraft Engines 03-21-2022, 08:27 PM
Replies: 28
Views: 4,597
Posted By grubbat
Oil

Rotella diesel oil
Forum: Traditional Aircraft Engines 02-28-2022, 09:05 PM
Replies: 10
Views: 2,186
Posted By grubbat
Kevlar Belt

Iíve been running the Kevlar link belt for about 3 or 4 yrs. Over time it kinda gets a set and stretches a little but perfect for emergencies. That said, when I get a round to it, Iíll pull the CS...
Forum: RV Ongoing Maintenance Issues 02-21-2022, 09:22 PM
Replies: 7
Views: 768
Posted By grubbat
Wrap a magnet

Iíve wound the wires through a round magnet and was able to choke out the noise. Canít remember where I got the magnet but it came in two halves and it just folded over.

Good luck on your fix.
Forum: Traditional Aircraft Engines 02-18-2022, 01:03 PM
Replies: 20
Views: 4,411
Posted By grubbat
Not at the moment

Just a couple of years ago you couldnít give a twin away. Now, if it airworthy, they are bringing top dollar. If inflation continues, we may start to see some of these hangar queens being parted out...
Forum: Traditional Aircraft Engines 02-18-2022, 07:54 AM
Replies: 20
Views: 4,411
Posted By grubbat
Prices

I sold a 3000hr Aerostar motor a couple of weeks ago for 10k, no questions asked. I called engine shiop about getting 4 M1B intake tubes and the price is now $300 each, $1200 a set. They also told me...
Forum: RV-15 02-18-2022, 07:44 AM
Replies: 40
Views: 23,922
Posted By grubbat
Smokey let the cat out of the bag

Well, I guess now that Mr Smokey has shared his pic of the RV-15, guess Iíll share mine........ albeit sideways.....
Forum: Traditional Aircraft Engines 02-17-2022, 11:45 AM
Replies: 10
Views: 1,771
Posted By grubbat
Pics of metal miniture ball

Thanks for the help on the pics. Here they are.
Forum: Traditional Aircraft Engines 02-17-2022, 08:01 AM
Replies: 10
Views: 1,771
Posted By grubbat
Lycoming Low Oil Pressure on Final

I0-360, about 200hr SMOH, recent oil and filter change, Victory multi grade aircraft oil (winter operation), 20 minutes into flight, on 10mile final, no traffic, beautiful evening.......

Started...
Forum: Safety 01-31-2022, 06:14 AM
Replies: 20
Views: 4,315
Posted By grubbat
Hump

Iím not fond hump runways especially when it has a huge slope that encourages folks to takeoff downhill and land uphill. Case in point, GA2 Peach State. Home to barnstormers grill. Great place to...
Forum: RV General Discussion/News 12-09-2021, 08:19 AM
Replies: 49
Views: 21,398
Posted By grubbat
Vans credit

Ok, at this point, I think it is appropriate to recognize Vans for the great company that it is. Sometimes it’s hard to see when a company excels in so many ways until you compare them to the...
Forum: RV-9/9A 11-21-2021, 07:15 AM
Replies: 12
Views: 3,442
Posted By grubbat
Friend price

Friend price is $40,000 to $50,000.
Forum: Traditional Aircraft Engines 11-20-2021, 10:31 PM
Replies: 2
Views: 619
Posted By grubbat
Decathlon IO320

I have a first run IO-320 out of a decathlon. CS Prop being overhauled. It is complete with Governor and exhaust and so forth. I think itís 1500hr since new.
PM me if interested.
Forum: VAF Classifieds (posts in here deleted after 30 days) 11-11-2021, 08:24 PM
Replies: 36
Views: 18,318
Posted By grubbat
Compromised

My name and password from VAF was compromised from a data breach. Hackers posted the names and passwords on the dark web and thus thatís why several have had imposters post here. I caught one trying...
Forum: RV General Discussion/News 09-22-2021, 07:39 AM
Replies: 6
Views: 1,800
Posted By grubbat
# 2 Problem

I removed the dam and solved my #2 problem. 😀
Forum: RV General Discussion/News 09-21-2021, 07:56 AM
Replies: 32
Views: 6,397
Posted By grubbat
Information

Greg, have you found reading the information to be ever be difficult? When I look at the screen, my mind is saying information overload even though I know that everything on the screen is needed at...
Forum: Glass Cockpit 09-21-2021, 07:47 AM
Replies: 0
Views: 636
Posted By grubbat
Need upgrading ideas for weak eyes

Mods,
Please delete.
Thanks.
Forum: RV General Discussion/News 09-21-2021, 07:06 AM
Replies: 17
Views: 3,856
Posted By grubbat
Poor in spirit

ďSometimes living in a trailer has its advantages.Ē

When I heard that line 50yr ago, I didnít understand why someone would live in one of those. Granted back then, the floors would swell and rotten...
Forum: RV General Discussion/News 09-19-2021, 03:15 PM
Replies: 30
Views: 6,553
Posted By grubbat
Avgas

Avgas for cleaning engine, avgas for cleaning hands, avgas for cleaning windshield, and finally avgas for termites and ants.

Being cheap makes one swell with pride.

Wanted, windshield for my...
Forum: RV General Discussion/News 09-19-2021, 03:05 PM
Replies: 28
Views: 6,007
Posted By grubbat
5hr dual

When I got my RV-3, insurance wanted me to get 5hr dual in RV-3.
Hummmm, ok. I told them I had 10 hr in a Piper Tomahawk and they said that works. Now, this exercise told me a lot about the...
Forum: RV-12/RV-12iS 09-13-2021, 06:56 AM
Replies: 13
Views: 2,730
Posted By grubbat
Tax Collector

Having been on both sides of this issue over the years, it can be quite frustrating due to the inconsistency of the tax process. Variations between states and within states, between counties and...
Forum: RV General Discussion/News 09-12-2021, 03:07 PM
Replies: 2
Views: 1,083
Posted By grubbat
Covid

COVID messed up my concentration and general thinking ability. Weirdest thing every. Had it 8 days with high temp, cramps, major hip pain, and so on. Day 8 I gave up and got the monoclonal antibody...
Forum: RV General Discussion/News 09-11-2021, 01:16 PM
Replies: 18
Views: 8,094
Posted By grubbat
High wing

8 years laterÖ. Bought a M4 project Ö.. tired of waiting on Vans.,,,, but still got the Flying carpet -9 though. Got to keep it RV related ya know.
Forum: RV-15 09-01-2021, 07:28 AM
Replies: 242
Views: 73,740
Posted By grubbat
Curve

If I recall, Vans had a graph with a curve on it that showed the relationship between speed and survivability, using data from I guess years of information. I donít think the point was the actual 55...
Forum: RV-15 08-30-2021, 07:19 AM
Replies: 242
Views: 73,740
Posted By grubbat
Speed range

I remember getting Kitplanes magazine in the 80ís and comparing all the kits specs. Which one was fastest, slowest, cheapest, and so forth. I remember settling on the RV because it did a lot of...
Forum: RV General Discussion/News 08-20-2021, 09:04 PM
Replies: 19
Views: 7,800
Posted By grubbat
Deposit

Well Mr Greg, Iíd like to make a deposit on the RV-15 kit, sight unseen. I know itís gonna be great. Any provisions on a discount maybe the first 25 or so orders? 😄.
Just kidding. I was just getting...
Forum: RV-15 07-26-2021, 08:20 PM
Replies: 10
Views: 6,863
Posted By grubbat
Iím ready

I sold my Maule and held up on building a bearhawk just so I could build the proposed RV-15. I was hoping it would come to market before I kicked the bucket. Iíll probably sell the RV-9 and Aerostar...
Forum: RV-9/9A 06-24-2021, 10:41 PM
Replies: 35
Views: 12,706
Posted By grubbat
2700 rpm

Seems like the CAFE analysis on the RV-9 showed 30mpg at several RPMs . Iím curious to see how your data would compare to say 2700RPM.
Here is link to the report to save ya some searching....
Forum: RV General Discussion/News 06-02-2021, 10:16 PM
Replies: 89
Views: 27,284
Posted By grubbat
One year, Avemco was high. Next year they were...

One year, Avemco was high. Next year they were lower. I used them for the liability only Aerostar. I use Global for the RV. Itís liability only too. I stopped doing full coverage. Cost too much and...
Forum: Safety 06-02-2021, 10:46 AM
Replies: 12
Views: 3,199
Posted By grubbat
Experimental

I guess it comes down to your acceptable risk for you and your passengers. In the real world I would consult a aircraft structural engineer with the issues and some suggested repair options. It would...
Forum: RV-10 05-30-2021, 03:47 PM
Replies: 66
Views: 16,996
Posted By grubbat
Thoughts

I suspected the reinforcing would be more advantageous over time especially for the repeated use of the over 170lb folks. When I was considering using the steps, I thought about not only heat...
Forum: RV-10 05-30-2021, 07:33 AM
Replies: 66
Views: 16,996
Posted By grubbat
Broke steps

Steps have been breaking for decades. Didnít put them on my -9 for that very reason. Yes Iím a certified aircraft welder. Those failures look like a combination of inadequate stress relief after the...
Forum: Traditional Aircraft Engines 05-24-2021, 07:13 AM
Replies: 19
Views: 3,853
Posted By grubbat
Baffle

A lot of people put the dam that comes in the baffle kit in front of cyl1 and then they get issues with 1 being hot. Unless you live in Alaska or there about, that little critter is unnecessary. I...
Forum: RV General Discussion/News 05-22-2021, 07:54 AM
Replies: 87
Views: 22,467
Posted By grubbat
150/172

I enjoyed flying the 150 and 172 planes. Cessna did a great job getting the wing right for its intended purpose. They are cheap to maintain and thereís a bunch around. However, like most things in...
Forum: RV-9/9A 05-18-2021, 07:02 PM
Replies: 29
Views: 7,598
Posted By grubbat
5mph

5 mph is huge. The late Bob Axiom would have loved to known this.
Please keep us posted as this sounds like a fun project.
Forum: Traditional Aircraft Engines 05-18-2021, 06:28 PM
Replies: 33
Views: 6,357
Posted By grubbat
No typo

No typo. My star used to make nightly check runs so flying all day for 5 days a week can get you to 2000hr pretty quickly. With the internet, those flying jobs went by way of the dodo bird.
Forum: Traditional Aircraft Engines 05-18-2021, 06:46 AM
Replies: 33
Views: 6,357
Posted By grubbat
I use it on sometimes

Right now I have three lycomings under my daily watch. A custom built experimental io360 that is about 190 to 200hp with about 300hr smoh and two certified io540 each producing 290hp at 2550 rpm or...
Forum: Alternative Engines 05-15-2021, 10:02 AM
Replies: 10
Views: 3,690
Posted By grubbat
Alternate engine

Iíd expect the price for an alternate engine RV to be between 30% to 50% less than similarly equipped lycoming model.
Forum: Traditional Aircraft Engines 04-22-2021, 07:50 PM
Replies: 20
Views: 2,649
Posted By grubbat
You only need a 320

Well because you donít need a io320, you will go too fast with a 360, and your hair will fall out. Now, if you want a climbing homesick angel, and you can properly control the throttle, then you may...
Forum: RV models of the future (RV-??) 04-22-2021, 07:06 AM
Replies: 28
Views: 10,717
Posted By grubbat
I thought about that and with the increase in the...

I thought about that and with the increase in the engineering team and fabrication equipment, it appears that there may be some actual movement in a new design.

That being said, while a twin or...
Forum: RV-3 04-21-2021, 05:09 PM
Replies: 18
Views: 5,340
Posted By grubbat
Kicking a dead horse

The topic of VNE, IAS, TAS has been discussed at length through the decades on VAF and at Vans. I along with BillL and others have tried to get some movement at Vans concerning this but to date no...
Forum: Propellers 04-21-2021, 04:59 PM
Replies: 5
Views: 1,811
Posted By grubbat
Good advice on the longer prop

I sent 5 constant speed props out for overhaul and two were rejected due to blade length. So, the 74Ē prop would be my choice if I was gonna keep the plane for a long period of time. The shorter prop...
Forum: RV-9/9A 04-18-2021, 04:09 PM
Replies: 29
Views: 7,598
Posted By grubbat
Wheel pants

Wheel pants will help keep the rocks and sticks from hitting under your wings. Over time, the fiberglass will work on the attaching hardware holes and then it would be a great time to remove the...
Forum: Web Site Development 04-18-2021, 04:04 PM
Replies: 0
Views: 3,650
Posted By grubbat
Database search

When I search the site, I will get returns of posts from 2021, 2020, then around 2015, then 2010, then 2005. It’s almost like the database is missing chunks of data here and there. Have you noticed...
Forum: RV-7/7A 04-18-2021, 07:44 AM
Replies: 20
Views: 5,994
Posted By grubbat
Worldwide supply chain

The worldwide supply chain is screwed up and no relief is expected for at least a year. Microchip shortage has Toyota stopping the Tundra production in Texas. My metal prices for raw galvanized sheet...
Forum: Alternative Engines 04-09-2021, 09:04 AM
Replies: 11
Views: 3,891
Posted By grubbat
Rpm

What is the design rpm of this liquid piston engine?
I wonder if this would be a good candidate to drive a ducted fan?
Forum: Traditional Aircraft Engines 04-04-2021, 04:09 PM
Replies: 44
Views: 6,980
Posted By grubbat
Technically

Well technically, not changing the oil filter while changing the oil is liken to taking a shower and not changing underwear. Technically, it can be done , but ewwwww.
Forum: RV General Discussion/News 03-31-2021, 06:01 AM
Replies: 69
Views: 12,190
Posted By grubbat
I LOVE Marvel Mystery Oil

I absolutely LOVE marvel mystery oil ............
in my air tools.

My Lycoming io540 which has 20,000 hr total time and 3100 SMOH uses straight 50wt oil in summer and 20w multi in winter,...
Forum: RV-9/9A 03-19-2021, 07:12 AM
Replies: 35
Views: 5,546
Posted By grubbat
Speed

For my -9, I slow downwind just enough to add some flaps then add some power, over the numbers full flaps on calm day or max lift flaps on windy day and bleed power off with nose pointed downward....
Forum: RV-9/9A 03-16-2021, 08:19 AM
Replies: 22
Views: 3,950
Posted By grubbat
How

Step 1. TAke the RV-9 tail off and install RV-8 tail.
Step 2. Take both wings off and set in corner of shop.
Step 3. Do research on how to convert a Diesel engine to the RV airframe
Step 4. Ponder...
Forum: RV General Discussion/News 02-01-2021, 06:51 AM
Replies: 137
Views: 42,812
Posted By grubbat
Critical time

Engine failure at rotation is a handful and sobering event. Every twin driver does a mental scan of this possible event on EVERY takeoff. My plane with gear and flaps down wonít fly at rotation with...
Forum: RV General Discussion/News 01-04-2021, 10:03 AM
Replies: 2
Views: 1,265
Posted By grubbat
Opposite

Realistically, aircraft values have gone up year over year. Itís not like a car or a singlewide. Everybody hates taxes especially reoccurring ad valorum taxes on an asset that keeps going up up up....
Forum: RV-9/9A 01-04-2021, 01:50 AM
Replies: 29
Views: 6,605
Posted By grubbat
Wing tips

You could remove the big wingtips and put end plates on and save some wingspan but anything more would be extensive because the flaps and ailerons would have to be shortened. The wingtips have some...
Forum: RV Ongoing Maintenance Issues 01-03-2021, 07:52 PM
Replies: 17
Views: 2,807
Posted By grubbat
Earthx cutout

My Earthx cut power once. It was an unpleasant experience. Shouldnít have happened, but it did. The BMS can be a little snot sometimes.
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