I'm just posting an airplane I would like to see modeled if anyone is interested and can get enough info. Donamy has expressed interest, but drawings and dimensions are lacking. The aircraft is no longer manufactured.
It was used extensively by an Argentina team …
I had RC plans made from info provided by the manufacture, but the info doesn't seem to be available now. Might be on an old laptop, but can I find it???
Modeled at 180 inches would be almost 3/4 scale.
Pictures below …………….
----------------------- Some Info ---------------------------
"The Rans S-9 Chaos is an American single-engined, tractor configuration, single-seat, mid-wing monoplane designed by Randy Schlitter for aerobatics and manufactured by Rans Inc. The Chaos is available in kit form for amateur construction"
The Chaos was single seat
The Sakota model was two seat side by side.
SPECIFICATIONS 65 HP 80HP/100HP
Wing Span ............................. ................................... 22.0 ft ....................................... 22.0 ft
Area ....................................... ................................... 91.5 sq ft ............................. 91.5 sq ft
Mean Chord ........................... ................................... 4 ft 2 in ................................... 4 ft 2 in
Aspect .................................... ................................... 5.3:1 ........................................... 5.3:1
Length .................................... ................................... 15 ft 8 in ............................... 15 ft 8 in
Height .................................... ................................... 4 ft 10 in ............................... 4 ft 10 in
Cockpit Width ......................... ................................... 26 in ........................................... 26 in
Headroom .............................. ................................... 38 in ........................................... 38 in
Legroom................................. ................................... 45.5 in ..................................... 45.5 in
Number of Seats .................... ................................... 1....................................................... 1
Doors ..................................... ................................... 1....................................................... 1
Landing Gear* ........................ ................................... F/TD ........................................... F/TD
Fuel Capacity** ...................... 9 or 18 gal US
POWER PLANT 582 912ULS
Engine ................................... ................................... Rotax 582 ................... Rotax 912ULS
Output .................................... ................................... 65 hp ....................................... 100 hp
Oil Capacity ........................... ................................... 2.5 .............................................. 3 qts
Coolant Capacity .................... ................................... 4.4 qts ..................................... 4.4 qts
Propeller Diameter ................. ................................... 68 to 70 in ......................... 68 to 70 in
Propeller Type ***
Gear Reduction ...................... ................................... 1:2.58 ....................................... 1:2.43
Fuel G.P.H @ 75%................. ................................... 5.75 ............................................... 5.0
PERFORMANCE
Take Off Roll .......................... ................................... 200 ............................................ 250 ft
Rate of Climb ......................... ................................... 1000 fpm ............................. 1100 fpm
Service Ceiling ....................... ................................... 15,000 ft ................................ 16000 ft
Cruise .................................... ................................... 100 mph ............................... 120 mph
VNE ....................................... ................................... 130 mph ............................... 130 mph
Stall Clean ............................. ................................... 41 mph ................................... 43 mph
Roll Rate ................................ ................................... 100o / sec ........................... 100o / sec
Glide Ratio ............................. ................................... 8:1 ................................................. 8:1
Landing Roll ........................... ................................... 400 ft ......................................... 400 ft
Endurance** .......................... ................................... 1.56 hrs ................................... 1.8 hrs
Range** ................................. ................................... 156 miles ............................ 216 miles
WEIGHTS AND LOADINGS
Gross Weight ......................... ................................... 710 lbs ................................... 810 lbs
Empty Weight......................... ................................... 375 lbs ................................... 475 lbs
Useful Load ............................ ................................... 335 lbs ................................... 335 lbs
Wing Loading ......................... ................................... 7.76 lbs ................................. 8.85 lbs
Power Loading ....................... ................................... 11.0lbs .................................... 8.1 lbs
Limit Load Factors.................. ................................... +6-4 ............................................ +6-4
*F/TD=Fixed Taildragger
**Double the Range with a second optional wing tank.
***Refer to propeller options
Performance at sea level and maximum gross weight.
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