BD-4
Scott DeGaynor's N348ST built by Steve Takas. Very nice.
This homebuilt aircraft has become something of
an obsession for the last year or two. There are
many facets to the project and I can see it keeping
me occupied for years!
Newletter #28
A new newsletter is available largely due to efforts by Steve Mahoney.
Click here for the newsletter.
Specifications
These are my best guess at the specs., your milage may vary:
Empty weight: ~1200 - 1400 lbs.
Gross weight: 2400 w/ stronger landing gear.
Engine of choice: O-360, many others used.
Stall flaps: 63 mph
Stall clean: 67 mph
Vx: ~95 mph
Vy: ~120 mph
Vne: 234 mph
Cruise: 140 to 200 mph, depending on engine and clean up mods.
Approx. 250 BD4's built and flying world wide.
Click here for Jim Bede's specs.
As a fine example, here is one Mike Huffman was a partner in:
My Plane
Here is my pitiful collection of parts.
But one day this will be a fast mount! Thats the ticket.
Click here for my project.
Area 51
A new construction area for flying objects.
Click here for Area 51.
More Pictures
Here are a few more picture. A couple are large and may take a while to load.
Click here for more Pictures.
Design Notes
These were a series of advertisements Bede put out in the early 70's.
They show something of what Jim was thinking when he dreamed the BD-4 up.
Click here for the Design Notes.
Airfoil
This is the airfoil Jim Bede used for the BD-4 and the Yankee.
Click here for the coordinates.
On the real wing there is not quite so much camber in the rear due
to the aileron/flap construction.
I think that the Sonex is using this one too, although the chord
may be different. It also goes very fast for the load and horsepower.
Bill of Materials
This is the bill of materials that was published in "The Book."
If anyone wants to work up an Excel spreadsheet I would be happy to post it.
I can't swear this is completely accurate.
Click here for the bill of materials.
Hex Number Call Outs
These are the "hex" call outs on the plans. They provide a cross referece to
the bill of materials.
Again, I can't swear this is accurate.
Click here for the hex numbers.
This is a drawing for one of the 4 new belcranks. These are used to replace the
cables and pulleys in the aileron system. The center gets a belcrank bearing. I've
got something similar for the rudder belcrank.
For Sale/Want Adds
I'll try to keep this updated as time permits.
Email me and will post ASAP.
Click here for want adds.
Links
These are links to a few sites I know of for the BD-4. If anyone
knows of more please email me at:
mark.napier.KILL_SPAM_DIE@sciatl.com
Click here for BD-4 links.
More Information
Since I've posted this site I've had a few inquiries about plans, parts, projects, etc.
I thought I would go ahead and post what little I've got.
Click here for contact information.