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American Affordable Aircraft Inc. Vision

affordablevision


The American Affordable Aircraft Vision is an economical, 2 seat, all composite aircraft that is built from construction manuals. Designed by Steven Rahm for first time builders, each of the sub-assemblies cost less than $500.00 on the prototype. This plane was constructed by first time builders to test the construction manuals and no construction manuals were sold until testing of the prototype. The plane is all composite with no wood under-structure and uses no foams. There is a full sandwich skin on both sides. This is a plans built plane with supplemental parts. It can be built from manuals and raw materials or pre formed parts. The aim is to keep the wet-layup moldless airframe as low a cost as possible. Required power is 85-115 hp giving a cruise of over 150 mph. Engines up to 300 lb and 160 hp are acceptable.
The prototype was first flown in 1996.


Landing over 50 ft requires 1200 feet and takeoffs require 1500. Stall with flaps is 54 mph but touchdown can be slightly slower with ground effect. Climb rate solo with full fuel is 1400 fpm at sea level on 85 degree day with this prop and the economical Subaru engine.


Two models are available - The sportier SP model and the extended wing EX version which is more suitable for high altitude flying, heavier loads, and lower experience pilots.  Both versions are supplied with the plans. Construct entirely from the manuals using raw materials or from pre-formed parts. Most of the Visions are built with 44" to 46" wide cockpits.  Even pilots as tall as  6'5" can be accommodated.


Weight should be at 850 lb empty, the prototype is close to 900. Intitally the gross weight has been set at 1350 lb. pending further testing and the aerobatic weight is at 1250 lb. (With SP wing, engines over 115 hp raise gross to 1450. With "EX" wing and engines to 120 hp gross is 1500 and for engines over 120 hp gross is 1600. +6/-4 g rating is always at 1250 lb.)


When the Vision was designed in 1994 there was no thought of LSA.  However, since each builder is the manufacturer of their own aircraft they also determine and set the gross weight.  Setting the gross weight within LSA limits is simple enough as the Vision is well under any structural or performance concerns for an EX version.  In order to fit the stall requirement with flaps up a full time leading edge slot would need to be installed; this is a simple matter once you understand just how easy it is to work with and modify composite structures.


In the interest of having the most useful load it is critical that the empty weight is a low as possible since the gross weight can not be higher than 1320 lbs.  The use of the carbon pre-built spar and Fold-a-Plane panels provided by Pro-Composites will greatly reduce the weight of the Vision - beyond what can be obtained through building according to the plans.  Also important is using a light power plant such as the 120 hp Jabiru. Using these recommended changes a Vision should be in the 700's empty weight. Keeping the top speed down is simply a prop choice so the whole equation of meeting LSA requirement is no major undertaking.

Vision SP
Engine: 100 hp
Engines: 100-160 hp
Wing Span: 21 ft 8 in
Wing area: 85 sq.ft
75% cruise: 157 mph
Empty Weight: 850 - 950lbs
Useful Load : 500 - 750 lbs
Gross Weight: 1350 - 1600 lbs
Fuel cap: 22 USG (optional 40USG + 15USG)
Cockpit width: 40-44 in
Vne: 207 mph indicated
Va: 143 mph indicated
Vd: 231 mph indicated
Vf: 105 mph
Airfoil: root 63a415, tip 63a412.
Cruise: 155 mph – 200 mph
Climb Rate: 1400 fpm
Stall: 55 mph
Load factor: +6g / -4g (at 1250 g.w.)
Take-off dist: 600 ft
Landing  dist: 900 feet
Aspect Ratio: 5.5
Seats: 2
Landing Gear: Fixed conventional or Tri-gear w/castering nose wheel  

Vision SP
Engine: 160 hp
Wing Span: 21 ft 8 in
Wing area: 85 sq.ft
Aspect Ratio: 5.5
Empty Weight: 850 - 950lbs
Useful Load: 500 - 750 lbs
Gross Weight: 1350 - 1600 lbs
Fuel Load: 22-40 Gallons
Cruise SL: 175 mph
Cruise 8000ft: 200 mph.
Vne: 207 mph indicated
Va: 143 mph indicated
Vd: 231 mph indicated
Vf: 105 mph
Airfoil: root 63a415, tip 63a412
Take-off dist: 600 ft
Landing  dist: 900 feet
Stall: 55 mph
Load factor: +6g / -4g (at 1250 g.w.)
Cockpit Width: 40-46 in
Landing Gear: Fixed conventional or Tri-gear w/castering nose wheel  

Vision EX
Wing span: 25 ft 6 in
Wing area: 96 sq.ft
Length: 19.93 ft
Height: 7.324 ft
Wheel track: 5.638 ft
Empty Weight: 850 - 950lbs
Useful Load: 500 - 750 lbs
Gross Weight: 1350 - 1600 lbs
Fuel cap: 22 USG (optional 40USG + 15USG)
Cockpit width: 40-44 in
Vne: 207 mph indicated
Va: 143 mph indicated
Vd: 231 mph indicated
Vf: 105 mph
Airfoil: root 63a415, tip 63a412
Cruise: 155-200 mph
Climb Rate: 1400 fpm
Stall: 55 mph
Load factor: +6g / -4g (at 1250 g.w.)
Take-off dist: 600 ft
Landing  dist: 900 feet
Aspect Ratio: 6.6
Landing Gear: Fixed conventional or Tri-gear w/castering nose wheel

 

 


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