Who, What, Where

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Be sure to put "RV7" in the subject.  My email (for this site) will delete all mail without it.

 

September 20th, 2001 - The Shop is done and I first started the actual building of the airplane.  This could be considered the 'from' WHEN date.  But like many BIG projects, the 'from when' usually precedes the actual physical start by a long period of time.  The 'to' WHEN is that I'd like to fly (in a little over 3 hours instead of drive a lot over 13 hours) down to Virginia for our annual Thanksgiving weekend get together in 2003. (Today, 12/3/04, I'd say 2005 is doubtful!)

 

WHO

Tom Wruble     This will be my third airplane, but my first "real" airplane.  I built an Easy Riser after college in 1977[2nd picture].  It weighed 86#, had a 12.5 HP go kart engine and you picked it up and ran with it to take off.  That's how I taught myself to fly.  I lived about 40 miles south of L.A. during 80-81. I learned to fly a hang glider there, a Wills Wing Raven 229, and flew what seems like every weekend at Crestline [ridge near the launch shown in 3rd picture], 3300' above San Bernardino. Thermaling with hawks a couple of thousand feet above the mountain tops on a beautiful summer day is probably as good as it gets!  My first high altitude launch (1,350') was at Lake Elsinore.  Aggie took the 4th picture just after I launched from this site.  It was April 4th, 1980, and that's San Gorgornio Mountain at 11,502' and 45 miles away.  Back in Michigan, I built a Kolb UltraStar [last picture], too heavy to be a legal ultralight and wanting to fly to Oshkosh, I registered it EXPERIMENTAL and got my day/night SEL pilot's license.  Flying there solo and camping under my wing was a hell of an adventure.  I had 60# of camping gear, 2-cycle oil and clothes in my "cargo" pouch, which was right on C.G.  The effort and desire to fly there paid off with the greatest honor I've ever achieved - Grand Champion Light Plane, Oshkosh '90.  I've been wanting to build a RV-6A for a while, but meeting and courting my wife 5 years ago, planning an outdoor wedding on my Dad's farm in 98 (the first year in the history of the world that there were no mosquitoes or flies in Michigan's thumb was proof to me that the star's were in alignment for our marriage), followed by COMPLETELY gutting and refurbishing our kitchen (Connie's a GREAT cook), and adding an 1,800 gallon pond with waterfall held me back JUST LONG ENOUGH for Van to introduce the RV-7!  I recently changed direction and decided to go with the tip-up canopy.  I had thought the sliding canopy was sooo cool - still do.  I had rationalized the reasons for going that way, but when it came right down to it, it was because it was cool.  But then I started noticing that all the pictures of folks flying in the "sliders" had parts of their faces, etc. blocked from view  And then it hit me - if I can't easily see in, they can't easily see out!  Flying a hang glider or perched on the front on an UltraStar (engine and 'everything' behind you) VISIBILITY does NOT get any better than that.  And that's a large part of what I like about flying: seeing the landscape. Connie and I keep a list of 'Flying Destinations' in my Palm Pilot.  We're up to 31 now.  The first will be to Mackinaw Island for a weekend at the Grand Hotel.  Others include "Sister's, Oregon for annual quilt show" (Connie's pick), and one that really caught my imagination - I read about a couple from Oregon that flew their RV-4 to Venezuela to see Angel Falls (where Jimmy Angel landed a 'Norseman' aircraft on top a long time ago).  And we only have to start from Michigan!
Constance May Harkness     My wife!  She and I are planning to do a lot of site-seeing with the RV serving both as transportation to make weekend trips hundreds of miles away feasible, but also as an observation platform, of the finest kind.  

Connie is a registered nurse.  She's doing contingent home care these days which gives her more control over her schedule.  A 14 year stint as a CCRN (critical care) at Harper Hospital ended when administrators demurred about the length of our nearly month-long honeymoon a little over 4 years ago.  I'm sure they knew what a good nurse they had on staff and foolishly chose to play their poker hand to the end.  This is not simply a prideful husband's idle boasting.  You'd want her keeping an eye on your condition, meds,... everything, if you were under the weather.

As I've said above, she's also a great cook , and that's no idle boast either!  She doesn't just follow recipes, can't really, it's not in her character.  She embellishes. Try her 'Veal Constance' some day:

Veal Constance

Connie Harkness, March 2001

1) Beat the veal out thin, approximately 3/16" thick with a meat-tenderizing hammer.

2) Coat the veal in flour and beat it again forcing the flour into the veal and beating it as thin as possible without having it break up into smaller bits.

3) Take 2 big cloves of garlic, 1 large shallot, and if your daughter who hates capers is not eating with you, some capers. Cut these up into something between minced and small diced (but not the capers) and sauté them in olive oil in pan.

4) Season veal with lemon pepper and paprika and sauté them on both sides in pan with the garlic, shallots, and optional capers. Add a little butter to this sauté. If the veal cutlets are beat very thin, then by the time they are browned on both sides, they will be cooked through.

5) Take only the veal out of pan and deglaze pan with a splash of balsamic vinegar.

6) Add a little butter and "scrub" the sides of the pan with butter using a wooden spoon.

7) Deglaze pan again with the juice of a half lemon that has been micro waved about 25 seconds on high and is covered with a "lemon net". (A little tiny, very fine, "hair net" for the lemon, that keeps seeds from escaping into your sauces as you squeeze the lemon, but if you feel the juice run down your leg, your definitely getting carried away.) In this step, your goal is to get the "stuff" that is stuck to the surfaces of the pan free. It's got a lot of flavor and will also make the sauce thicker.

8) Slowly pour in a little whipping cream at a time, mixing it with the deglazed garlic, shallot, and optionally capers, but only until you have enough thick brown sauce to just barely cover the veal when served.

9) Serve with a side dish of your choice (almond-orange asparagus or feta angel hair pasta have been tasty for us) and enjoy!

Connie also reads quite a lot.  She'd love to work in a book store.  She tries to alternate between fiction and non-fiction.  She's read 53 books this year, a little over 16,000 pages, and has November and December yet to go!  Her favorite books so far this year are: Bel Canto by Ann Patchett, Ava's Man by Rick Bragg, Tender at the Bone by Ruth Reichl, and Looking for Alaska by Peter Jenkins; all having earned a 10.

Connie also likes to quilt and sew, garden (tomatoes canned for soups and sauces this year, so she had to 'buy' zucchini to make zucchini bread this fall), and keep track of the flower beds all around the house in addition to her collection of Orchids.

And lastly, she is being patient while I build this plane.  Because when it's finished, that's when we start decorating the house in a serious way.  We both like wallpaper and I like hanging it.  The garage will be turned back into a mostly wood-working shop to work up a new fireplace mantle and a new stereo cabinet.  Next time I go to my sister's I'll take a picture of the mantle I made for her family a few years ago.  It's pretty massive. 

From the beginning she wanted to be my 'bucking bar babe'.  Our initial practice sessions back when I started the empennage proved frustrating.  But that was before Bob came over and told I had the gun pressure set much too high.  We haven't tried it since then because much of the riveting thus far has been with 1/8" rivets, which I don't think she has the strength to buck or with 3/32" rivets where the bucking position has been mostly blind.  When I got to the top main skins of the wing, I felt I had a large expanse of rivets that she could get her licks in on.  My original plan was to use the back riveting technique that has been widely reported as being easy for less experienced buckers and produces very nice results.  What better place for very nice results other than the top main wing skins?  I set up a little practice session and we had a go at it.  Two things proved less than very nice.  First, I couldn't seem to get to tail to set straight down.  With that little bend to allow for rib clearance, the 'thrust' of the hit was off center.  I'm sure it was me, but when combined with the second 'less that very nice' item, I decided to forego this technique.  My concern, which manifest itself, was that unlike 'traditional' riveting where each hit with the gun drives the manufactured head flush with the skin, each hit of the gun with this back riveting technique was trying to drive the manufactured head out of the hole.  Even though Connie was holding the bucking bar against the countersunk head, too many of the rivets ended up 'flush' with the skin surface, but not flush in the dimple - you could feel the edge with your finger.  So, we switched back to the traditional setup at the practice bench and shot six.  It turned out to be easy for Connie to get the tails to set straight and we went to work on the right wing.  

Working out from the center of the inboard panel, everything was going fine until I said "Shit!".  This coincided exactly with when I realized I had just set ten AN426AD3-3.5 rivets in the outboard wing walk rib where AN426AD3-4s were required.  Time for a 'break', so I'll update the web site with the new portraits before I drill those ten rivets out - but we're making progress!  

John Kean     I met John at our EAA chapter meeting.  As a part of each meeting, members with projects stand up and give a brief project status.  Because I'm building an RV-7A and John's going to be building an RV, he came up to talk to me during the break and we discovered we live about a mile apart.  To get some hands on until he finishes his shop and starts his bird, he offered to help out from time to time.  I think John's pretty much made the decision to go with the RV-9A.  He doesn't want to do any rolls.  He just wants to fly from point A to point B, as he puts it, so a 9A will serve his needs perfectly.  John flew A4s in Vietnam, and since we share rides to the chapter meeting, we talk about his military experiences in addition to the issues and decisions to be made in building an RV.  John will be going down to Atlanta to build his empennage in the week program.  From there he'll be doing the quick build kit. 
Mark Rupersburg     Mark's long-time friend Morgan built a Heinz CH-601 and so we met because Morgan gave a presentation on the plane to the chapter.  Though Mark has an interest in planes, his passion is invested in his 38' sail boat 'Wings of Morning'.  It's because of Mark that I've come to realize that I can fulfill a life-long dream of building my own sail boat.  I used to think that all sail boats with beautiful lines would be too big to build in my 20'x20' shop.  Luckily, sailing has also been of long-time interest to Connie as well.  So, after the RV is done, and we've spruced up the house a bit (2 years effort estimate), a Haven 12 1/2 will probably be started in the shop.  It's a day sailor with beautiful lines: Haven 12 1-2 Builders Site
Harvey Muehl     Though he is adamant that it's not true, he is most responsible for me being an airplane builder.  I met Harv about 30 years ago.  He was building a 2-place Volksplane in his garage.  He got it to the point of covering and then made the mistake of buying an Ercoupe.  After that he bought a Grumman Cheetah and then a Tiger, and during the ensuing years, until actually just two years ago, the fuselage and wings sat in his and Luann's (his very understanding wife) living room with the tail partially in the dinning room.  Not to worry though, they have a family room, and the living room also served double duty as their son Jeff's piano room as well as interim hanger.  Harv started building a Kolb ultralight with his son Jeff, so the Volksplane is now in the hanger with his Tiger, and his son's gone off to college and developed a stronger interest in music than aviation.  Harv's been IFR rated probably more than half the time I've known him.  We've flown down to see friends in North Carolina a couple of times.  Once in the soup on both legs and for hours at a time with nothing to see but the rain drops hitting the wind shield.

I finally asked Harv for some help and together we riveted the firewall with firewall sealant as required to keep fumes and the hope-it-never-happens fire out. 

 

 

WHAT

We're building the RV-7A.  The plane in the foreground is an RV-7, while the other plane is an RV-9A.  The 'A' designation means it's a tricycle-geared aircraft.  The key statistics are:

ü       2 people (you caught that right away didn’t you!)

ü       Baggage capacity – 100#

ü       Empty Weight ~1114#

ü       Gross Weight – 1800#

ü       Fuel Capacity – 42 gallons

ü       Engine – 160 hp AeroSport Power IO-320  

See 9/24/03 Equipment page for latest update.... As of 4/1/03, I'm almost committed to a new O-320-D1A 160 hp Lyc from Van's and a three-blade MT prop.  Here's why in an email I sent a friend:  

According to Steve Logue, the OEM sales manager at Lycoming, fuel injection on an aircraft engine in reality only buys you piece of mind with respect the carb icing. There are no real performance improvements from it. The deal is - 'people (customers) want it', so Lycoming supplies it, for about $6K+! The performance improvement on the M1B comes from the tuned induction system, which gives you a smoother running engine and about 5 more ponies, although Lycoming markets it as a 180 HP engine, which is what the A1A gets on a dyno, while the M1B puts out about 185 HP. Thing is they're within FAA tolerances for certification so if they market at 180 HP they avoid mountains of paperwork. So for $6K+ you get 5 more HP, which I don't need - about 9 extra pounds of engine mass, and no fuel efficiency gains (more ponies - more fuel).  What I can do though is use the low drag cowl, which is what I really want. And while I get a smoother running engine, it's not smooth enough to eliminate the constant speed prop RPM restrictions, which happens to be in the economy cruise range. Van's says it's not an issue, so they must run their engines at 75% all the time (Hey, they gotta be making money!). I went flying with Harv the other night and watched his fuel flow meter show 16.9 gallons used in an hour and 50 minutes of practicing IMC approaches, which was a little sobering money-wise, so I'm thinking I'll probably trade a little speed for less fuel burn when Connie and I are going places. So, how to deal with the prop? Turns out Lycoming is building a IO-360-M1B6, with the 6 meaning sixth order counterweights, as an experimental engine for a customer right now. And while it's not a 'front burner' project, it seems a logical step to take for the engine (Steve says), so it'll probably be available, maybe late this year - at about $1000-$1500 over the M1B and with 8# of pivoting, vibration absorbing steel bolted to the rear of the crank. So, I can either use an O-320-D1A, or to be able to use the prop I want in the power settings I want and USE THE LOW DRAG COWL, I could wait for and buy an IO-360-M1B6 which has the following plusses and minuses:

PLUS:

 1) 25 HP - actually the 160 HP of the 320 is fine for the plane - the 180 would just be macho need.

2) no carb icing concerns - I build the carb heat box in the firewall forward kit and keep my nose clean on the known icing conditions issue.

3) smoother running engine - but not smooth enough without counterweights.

4) low drag cowl - this is what I REALLY want!

MINUS:

1) 17# of extra weight from the engine and counterweights.

2) thirstier engine.

 3) $7,300-$7,800 MORE - yikes!!!

So, a low drag cowl is not worth almost $8,000 coupled with 17# of weight.

ü       Top speed – 208 mph (200 mph)

ü       Cruise (75% @ 8000 ft) – 198 mph (190 mph)

ü       Range (75% @ 8000 ft) – 765 sm (825 sm)

More details can be found at Van’s site: http://www.vansaircraft.com/public/rv-7int.htm

Paint Scheme:  June 16th, 2003 - I'm not sure I have a top-o-the-heap anymore.  At this point I'm just collecting ones that I like a lot.  We'll see where I go when it comes time to but paint and do the masking.

 

 

WHERE (& with WHAT)

Music in the workshop is a must for me.  Being a woodworker, I enclosed the components with furnace filters sealed with weather stripping above and below to keep any dust out.  The cabinet is lag bolted to the wall and screwed to the shelving uprights on either side of it.  The subwoofer sit underneath. JBL speakers in the four corners of the garage and head-high provide good surround sound which is very cool! I can play "Kick Out the Jams" by the MC5 real loud with the surround 'stage' set to 'arena' and it's amazing how acoustically poor (arena-like) it is and how believable it is.  The furnace is visible in the upper left of the picture, which keeps me toasty warm as the winter winds howl.

The Bench.  I built my Kolb UltraStar in this bench, so it's an old hand at building airplanes.  

The tools that I have found to be very nice to have around:

ü      Drill Press

ü      1" bench-top belt sander

ü       Band Saw with metal cutting blade & reduced speed via pulleys

ü       6" Scotch Brite Wheel on bench grinder

ü       Often enough the rivet specification called out for in the plans is not of sufficient length (given the variations in construction) to form a good shop head.  On the other hand, if the rivet is too long, there will be a greater tendency to cleat the head.  So, the tool to have is a rivet cutter.  I chose this one (2nd picture) even though it was damned expensive I thought at $126.  But it does a good job (the cut rivets have always easily gone in the hole) and it's easy and quick to work with.  Easy, because it is screwed to your bench so it's solid and with the long handle you can exert a large quick force.  Quick, because you don't have to adjust length guides.  Most options you will need are built right into the stepped cutter as different holes.  (The pliers-type has a set of length stops built in that are like a set of feeler gages.)

Just a day after reading about Dan Checkoway's new heavy duty ball-bearing countersink cage he got with Christmas $because his bushings were heating up too much to suite his taste, my basic Avery bushing countersink cage died.  Luckily as soon as it started to "disassemble", I withdrew pressure.  The surface that acts as a stop wore through.  Anyway, if you're going to do the standard build kit, especially the wing kit (although at this point I don't really know how much countersinking there is on the fuselage), I'd recommend upgrading to the ball-bearing variety from the get-go.

I was riveting the bottom main skins and had started working on the outboard section.  Up until that point all but one of the rivets driven in the bottom skins had been good.  One was cleated and I drilled it out and replaced it.  On the last bay with an access hole, I cleated 5 rivets in a row (I'll speculated why that happened in a sec).  What alarmed me was that by just sense of touch and using the rivet gauge I couldn't detect that these were cleated!  Because they were near the access hole, I could use a mirror to get a good view of them and saw they were bad.  So, since my bucking buddy and I had already been joking about how nice it would be to have one of those optical scopes you see in the movies, and since I now had "proof" that I could screw up and not detect it, I went to the Aircraft Spruce catalog online just for the hell of it and wham -$242 later, I've got a nice tool to check my bucktails that I cannot see enough with a mirror and I'm sure it will come in handy for annuals and other around-the-house "dark secrets".

I bought the 1/2" x 36" model.  According to the Spruce catalog: "10.6mm (1/2" - Tom) scopes have memory. The 5.8mm scopes are smaller with more light & heavier density, but don't have memory."  If you check out these scopes elsewhere on the internet, I don't think you'll find a better price than Spruce - I didn't.  But you find out that "memory" does not mean you can sight something and then save for later viewing or anything like that.  They mean that the flexible bundle of fiber optic cables is suppose to stay in the position you set it to i.e. not droop once released.  That's somewhat true.  The actual manufacturer calls this characteristic "obedient" - sounds S&M to me.  The lower picture is what you actually see, but it was a challenge taking a picture with the eyepiece up to the lens of the camera!  What you see with your eye is considerable sharper than I was able to capture, but it is NOT so sharp that you detect the beginnings of a smaller than hairline crack - at least I don't think so.  Sounds like an opportunity to do some testing - later.

I think the reason I cleated five in a row may have had something to do with my technique as bucker and with the technique of my buddy on the gun. and with the slight misalignment of the skin to rib rivet holes.  Clecoed and riveted to the rear spar the holes were perfectly aligned, but moving to the main spar the skin seemed to have shrunk a tad and so the holes were offset.  I think he wasn't maintaining enough.  I think if the shooter maintains good pressure on the gun, it'll hold the rivet seated straight.  Naturally the bucker can't be pressing hard because in between hits of the piston, because the hole is misaligned, any pressure on the bar can push the rivet off perpendicular.  On other bays going out to the wing tip, good technique was used and the skin did was is more normal when driving a line of rivets from one end to the other, the skin stretched and by the main spar, the holes were in alignment.

 

Up Progress Who, What, Where Tips & Ideas Mistakes!!! Soap Box & Equipment Hours of Effort