Turner T-40A
"Ophelia Bumps!"
Click on this link to view the full size 3-view of the Turner T-40A drawing
T-40A Specifications
Dimensions:Performance:
Wingspan 25' 6" Wing chord 3' 6" Length 20' 6" Height (top of cabin) 6' 0" Cockpit width 3' 4" Wings folded 7'10" Wing area 90 sq. ft. Flap area 9.9 sq. ft. Vertical tail area 9.6 sq. ft. Horizontal tail area 12.0 sq. ft. Gross weight 1580 lbs. Empty Weight (Prototype) 1050 lbs. Useful load 530 lbs. Fuel 144 lbs. (24 gal.) Baggage 30 lbs.
Vmax – Max speed 175 mph Vcr - Cruise speed 147 mph Vs - Stall Clean 56 mph Vso – Stall, Flaps 50 mph Va – Maneuvering speed 125 mph Vd – Red line 220 mph Vgust 140 mph Range – Max No wind 625 miles Rate of Climb @ SL 1,300 ft/min Service Ceiling 14,000 ft. Takeoff Distance 950 ft. Landing Distance 1,100 ft.
Powerplant:T-40A Design:
Engine Lycoming O-235 Design Horsepower 125 H.P. Low Range 100 Fuel Capacity (US Gal.) 24 H.P. High Range 125
Wing Design Low Folding Wings Yes No. of Seats 2 Tandem No Cockpit Width (in) 40 Landing Gear Tricycle, Tailwheel Materials Composite, Wood, Steel and Aluminum
Performance figures are based on the following: T-40A with conventional landing gear and 125 hp engine. The prototype T-40A has been flown with a horsepower range of 85hp to 125 hp. Gene Turner recommended a Lycoming O-235 series of 125 hp engines for the T-40A. Both conventional and tricycle landing gear options are available on the T-40A. Each undercarriage option is depicted in the drawings and the builder may choose which option to build. The landing gears were designed using this FAA FAR 23.471, Ground loads as a guide. (The remainder of FAR 23 was used where appropriate.) Stress analyses and static load testing were used to substantiate the aircraft structure.
The construction manual and plans have been completed. The drawings consist of twenty-two extremely detailed sheets that are 24" x 36" in size. The construction manual and plans may be purchased using US funds in the amount of $200.00 plus shipping cost:
U.S.P.S. mail to Alaska: $25.00
U.S.P.S. mail to Hawaii: $30.00
U.S.P.S. mail to foreign countries: Contact us for shipping costs.
The plan set will be shipped out insured, rolled rather than folded and placed in a shipping tube for protection. You may use cash, personal check (must clear both banks), US Postal Money Order, or Certified Check for payment purposes. Note: Georgia residents must add 7% sales tax.
If you wish to purchase online, please use PayPal as your option, this will allow you to use:
Click on the PayPal image below to go to the PayPal website. Use "contact @ adamsaero dot com" for the recipient ("To") e-mail address. Remember to add the appropriate shipping amount plus tax if applicable to the plans total. Please e-mail "kenneth.l.adams.jr @ gmail dot com" or call 404.219.7326 when you use PayPal, we have had issues with their notification process.
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Additional information about Gene Turner and introducing the T-40A - Gallery
The Turner T-40A is a two-place all wood airplane with designed with folding wings so that the pilot/owner could hanger the airplane in their garage. The airplane displayed below is located at the Boron Aerospace Museum in California City, California. This aircraft is a model T-40A that was equipped with a double slotted flap wing making this airplane a Model T-40B. With a 150-horsepower Lycoming engine it has a top speed of 175 miles per hour (152 knots) at 1650 pounds. Normal cruise speed of 155 mph giving it a no wind range of 505 statute miles. Gene's son, Jerry "Jet" Turner told this author that the plane you see is the original T-40 that was cut down the middle to create the T-40A. What a wonderful piece of history the Boron Museum has in their collection.
The Turner T-40A is a derivative of the Turner Model T-40 single-place airplane. The T-40 flew in 1961 and earned 18 trophies including the Experimental Aircraft Association (EAA) Outstanding Design in 1961. In 1962 the airplane won Second Place in the EAA Design Competition for a Folding-Wing Airplane. After five years of fun flying the airplane was actually cut down the centerline of the fuselage and widened to carry two people side-by-side. The prototype T-40A/B made its maiden flight in March 1969 from the Mojave Airport. At the time it was the only airplane based at the Mojave Airport.
The Turner airplanes were designed built, and test flown by Eugene L. (Gene) Turner Aeronautical Engineer and former World War II P-47 Thunderbolt Pilot. Gene worked as a design engineer on the Bell Helicopter XV-3 Convertiplane, and on numerous type certification projects such as the Boeing 737-20. Lockheed L-1011, Bell OH-4A (Model 206 Jet Ranger), and Manger of FAA Certification. He was also authorized by Aerospatiale to approve repairs for all Aerospatiale Helicopters operating in North America.
Turner T-40A Gallery
Gene's T-40A/B at the Boron Aerospace Museum in California City, California
This information is subject to change without notice.