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Messages - Dan C

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Culver General Discussion / Re: beech roby prop
« on: September 18, 2012, 02:06:06 PM »
I thought I was done with Aeromatic propellers about 40 years ago. Now I have half a dozen of them. Some are on flying airplanes.....
Realize that production propellers came in #1,#2,#3 flange as well as #20 shaft sizes. The pre-war Franklin had it's own, unique flange that incorporated the "snout." These crankshafts were obsolete by the time Aeromatic was in production, after the war and I do not know of any Aeromatics produced for the prewar engines.
The snout does nothing more than center and stabilize a wood prop. Continental and Lycoming do without. You could have Kent Tarver provide the early bolt pattern on one of his unfinished hubs...after you cut the snout off. Or you could do what I did on my 6AC-298-F3, essentially a 6 cylinder version of the 90 hp, 4AC-199 series.....make an adaptor disc that bolts to the Franklin flange and is bored in the front to mount the Aeromatic. This combo has been flying my Bellanca T14-14 for quite a few years. It was never a certified aircraft, so it operates 'experimental/exhibition." Certification on the Cadet would be a big question mark.

Modifications / Re: Franklin vs Continental
« on: May 28, 2012, 02:02:58 AM »
You can go online to "" and find a list of vendors selling non-ethanol fuel in your area. Here in the Seattle area there are several sources of 87 and 92 octane fuel w/o the corn juice.
If you review the Franklin manuals of the time, non-leaded fuel was specified.

Modifications / Re: Franklin vs Continental
« on: April 06, 2012, 11:00:15 PM »
The Champion C10S is a good plug for the Franklin. You can always buy them from Fresno at $7.50/ea and sometimes a lot cheaper on Ebay. Don't try to straighten the offset. Remember the torque to install is only 200 in/lbs +- 20. They don't last as long as the REJ-38, but at the price.........

Culver General Discussion / Re: 4AC-199 Franklin Engine Barn find
« on: March 20, 2012, 12:00:42 PM »
Be careful starting up any engine that had been idle for years. What had been a viable engine can be turned into a pile of scuffed, scorched steel in a few moments.

Maintenance and Repair / Re: Woodwork
« on: March 17, 2012, 01:38:58 AM »
How about a photo showing all the parts you are dealing with. Are you attaching something to plywood skin where you can't get to the backside? Thickness of the ply?  Bear in mind that I don't have access to a Cadet.

Maintenance and Repair / Re: Woodwork
« on: March 16, 2012, 01:20:52 PM »
I have dealt with the same issues in the Bellancas that I own and operate. I can say that screwing into and through wood can cause problems for airplane owners. This is not a problem in the furniture and cabinet making industry because the fasteners stay put for the life of the product. With aircraft, you have panels and fairings that are not only removed periodically, but subjected to vibration and flight loads. After 60 years or so, and a few thousand hours, that hole which originally contained a #6 screw, now barely holds onto a #10.
There are various threaded inserts that can be buried in or attached to wood structure. I recommend these. You can find them at aviation supply houses or your nearest hardware store. The only difference will be that you will use machine screws instead of tapping screws. These screws are available in slot or Phillips head. I'm sure Culvers came with slot head truss screws.

Modifications / Re: Franklin engines
« on: February 23, 2012, 05:52:23 PM »
The Franklin 4A-235 series came either with a bed mount, like most Franklins, or could be supplied with the rear mount to replace the Continental O-200. Aircooled Motors was far more resourceful and accommodating to customer demands than competitors. A great product for it's time. So was Studebaker....I have both.

Documentation / Re: N Number originally assigned to each serial number
« on: February 22, 2012, 02:50:33 AM »
My experiences ditto Brett. Ancient "N" numbers that have even been reissued can be researched from the FAA's "dead file." They will be in hardcopy as they went dead before microfische and CDs. If you are ever at the registration branch in OKC and I have been there several times, you can get records for free.

Documentation / Re: N Number originally assigned to each serial number
« on: February 20, 2012, 02:52:01 PM »
How many Cadets were manufactured? Starting with s/n ? - ending with s/n?

Aircraft For Sale / Re: Cadet for sale
« on: February 19, 2012, 11:07:15 PM »
Can you email Carl Badgett's contact number to me.

Culver General Discussion / Re: Franklin 90hp Engine?
« on: December 31, 2011, 10:06:51 PM »
I recommend that anyone planning to own and operate the 90 hp. Franklin, obtain the manual for the 4AC-199 series. Read it and understand it. Franklin had some different ideas on building an aircraft engine. These engines have been around quite a while and too many "farmyard mechanics" have had their "fingers in the pie."
I have a fair amount of experience with the six cylinder Franklins, both pre and post war. Now, I too have inherited a "90."
Who knows what I'll put it on.......

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