Curtiss Jenny Restoration
Welcome! We hope you enjoy following the restoration process of a 1918 Curtiss JN4D Jenny. Once completed, the aeroplane will be flown and displayed at the Candler Field Museum in Williamson GA (30 miles south of Atlanta). You can contact me below by clicking on "VIEW MY PROFILE"
- Name: Brian Karli
- Location: Peachtree City, Georgia, United States
Friday, July 31, 2009
Thursday, July 30, 2009
Landing Gear Airfoil
Fired up the router.
And cut the shape on the table saw.
Here's the new piece. You can see that I gave myself a little more "meat" above the airfoil curve. This is where I made a mistake on the first piece. I figured if I cut as close to the line as possible, I would have to do less sanding. Well...I got too close and undercut the line. Not this time!
The new piece will be glued and clamped to the rest of the structure next. Till then...
Monday, July 27, 2009
Landing Gear wires
And the right front and back wires.
Here you can see all the wires.
My friend John Gaertner sent me this neat photo, sent to him by his friend Mark. There was a caption with it that said:
SAFEST WAY HOME - Arthur Chester, stunt flyer, injured in automobile after exhibition in South Bend, IND., refused to risk riding on ground on trip back home to Chicago. His good leg was strapped to foot controls and off he went.
Sept. 20th 1925
H.C. Elmore - News Times - South Bend Ind.
Now, I agree with that!
Guess everyone is enjoying Oshkosh this week. I was contemplating - may be Oshkosh 2010, or probably 2011 - We should have a Jenny gathering like they did back in 1991. What do you think? I'm in....
Tuesday, July 21, 2009
Landing gear airfoil
So, back to the landing gear airfoil. John Kuck offered to help again and we set up the table saw to cut the excess spruce from the four airfoil pieces.
We decided to glue the front / bottom airfoil piece to the boards. Glue was applied to the surfaces...
...and everything was clamped to the together.
Thursday, July 09, 2009
Creating sawdust - routing the gear airfoil
So, out came the router today.
Also, my friend John Kuck came over to help. John is one of the Peach State Aerodrome regulars, active in our museum and owns a Taylorcraft and a Stearman. Quite frankly, he is handy to have around.
Monday, July 06, 2009
Wires and fittings and the gear airfoil
I had experimented with dying hardware with household lye before, but I was not happy with the results. I knew lye was extremely caustic. I put a small amount into a cup of water and soaked a few bolts. It took forever for the bolts to change color and when they did, the color was chalky and uneven. So, I gave up on the idea.
Oh, what you learn when you ask questions.
I remembered seeing the beautiful silver shackles on Paul Dougherty's Jenny during my visit to Pennsylvania. I asked him "How did you do that?"
"I dyed them in lye"
Remembering my earlier troublesome attempts, I asked him for his technique. Here goes:
Now that the shackles had been dyed, I started making the cables which brace the landing gear. These are thick cables - 3/16 in - which are bigger than the 1/8 in. cables used in the fuselage.
Because the cables are thicker, do you need to wrap them more? Yes. I checked the Brimm and Boges book and the formula is the same. Each wrapped section is seven times the diameter of the wire.
I will rough cut the shape with the table saw. Before that happens, several lightening spaces will have to be routed on the inside as well as two grooves to accept the landing gear tie rods. All these dimentions were traced onto the boards too.
Friday, July 03, 2009
Landing Gear brace wire fittings
And the 5/16 in. holes were drilled too.
Here are the fittings out of the bead blaster and ready for primer.
Wednesday, July 01, 2009
Back from Vacation
While I was there, Paul Dougherty and his father attached the horse hair filled cockpit coaming....
....and Mike Damiami worked on getting the OX-5 ready to run. Mike works Technical Support for Lycoming Aircraft Engines during the week and on the weekends, he lends his expertise to the museum. He is a valuable source of information. I know. I've called his number before when the Lycoming in my Bucker was giving me fits.
Before I left, I picked up some original sheet metal from a Jenny rear cockpit. I don't know how I got it to fit it into the van filled with luggage, DVD players, coloring books, baseball gloves, four kids, one wife, a dog and a cooler full of beverages, but I did and the cockpit sheet metal made it to Georgia safely.
Of course I had to put it on the airplane...just to see if it fit!
Gotta fly tomorow, but I expect work to resume on the Jenny Friday. Till then