Waco E series / ARE Aristocrat / HRE Aristocrat / SRE / UC-72A / UC-72C

1941-built Waco SRE

The Waco E series is a small family of American-built cabin biplanes built between 1939 and 1942, which differed primarily by engine installation. The E series was the final development of the pre-war Waco line of biplane designs. A full four-seater, it had the best performance of any of the Wacos. First flown in 1939, it had a much slimmer and more streamlined fuselage than earlier Waco C and S models and heavily staggered unequal-span parallel-chord wings with rounded tips. Wings were plywood-skinned, and also had wire cross-bracing between the wings in place of the solid struts used on previous models.

Engines varied in power from 285 to 450 hp (213 to 336 kW), giving the E series a high cruising speed for the period of up to 195 mph (314 km/h). Production ceased in 1942.

The E series was sold to wealthier private pilot owners who required the comfort of a fully enclosed cabin and a high cruising speed, combined with a longer range. Because of the type’s good performance, 15 examples were impressed by the United States Army Air Forces during World War II for communications work as the UC-72. Several of the USAAF examples were returned to civilian use after the end of the war and five E series aircraft remained airworthy in 2001.

Waco SRE impressed as USAAF UC-72

Four ARE (ATC 714) were built (NC20951, NC20953, NC20957, NC29376) at $14,900, of which the last one was impressed by the USAAF as UC-72A.

Waco ARE NC20953

In 1940 five HRE Aristocrat were built (ATC 714); NC1224, NC1252, NC20958, NC20965 and NC31654.

Waco HRE prototype NC20958

Two HRE, NC1252 and NC31654, were impressed by the USAAF as UC-72C.

HRE Aristocrat NC31654 was still flying in 1985 after reconstruction in 1970.

Twenty-one 1940 SRE (ATC 714) were built priced at $18,000 and 13 SRE were impressed in 1942 as UC-72, and 2 HRE in 1942 as UC-72C.

Waco SRE NC20967

A 4-5 seat WRE with a 420hp Wright R-975 was offered in advertisements, but was never built. Note: the Waco GXE of 1929/30 was an unrelated biplane design with non-staggered wings

Gallery

ARE Aristocrat / UC-72A
Engine: Jacobs L-6 MB, 330 hp (246 kW)
Propeller: Hamilton C/S
Length overall: 27 ft. 10 in.
Height: 8 ft. 8 in.
Wingspan, upper: 34 ft. 9 in.
Wingspan, lower: 24 ft. 4 in.
Airfoil: Clark Y
Chord upper: 72 in.
Chord lower: 48 in.
Weight gross: 4051 lbs.
Weight empty: 2563 lbs.
Fuel capacity: 125 USgal.
Oil capacity: 6 ¼ USgal.
Normal fuel consumption: 17 ½ gph
Top speed: 185 mph
Cruising speed: 155 mph
Landing speed: 58 mph
Rate of climb SL: 1170 ft.
Service ceiling: 18,000 ft.
5-place cabin land or sea biplane
Tires: 7:50×10
Gear tread: 101 in.
four built
one impressed by USAAF as UC-72A
Price with standard equipment 1939: $14,900.00

HRE Aristocrat / UC-72C
Engine: Lycoming R-680-E3, 285 hp (224 kW)
Wingspan: 34’9″
Length: 27’10”
Useful load: 1480 lb
Max speed: 175 mph
Cruise sped: 165 mph
Stall: 57 mph
Range: 1280 mi
Seats: 4

SRE Aristocrat / UC-72
Engine: 1 × Pratt & Whitney R-985 SB-2, 400 hp (300 kW)
Length: 27 ft 10 in (8.48 m)
Wingspan: 34 ft 9 in (10.59 m)
Height: 8 ft 8 in (2.64 m)
Empty weight: 2,734 lb (1,240 kg)
Max takeoff weight: 4,200 lb (1,905 kg)
Maximum speed: 202 mph (325 km/h; 176 kn)
Cruise speed: 195 mph (169 kn; 314 km/h)
Stall speed: 57 mph (50 kn; 92 km/h)
Range: 1,070 mi (930 nmi; 1,722 km)
Service ceiling: 23,500 ft (7,163 m)
Rate of climb: 1,550 ft/min (7.9 m/s)
Crew: 1 pilot
Capacity: 3 passengers
21 built
13 impressed by USAAF as UC-72
Unit cost: $18,000

WRE Aristocrat
Engine: Wright R-975 450 hp (336 kW)
offered to potential customers, but none built

Waco AVN / ZVN / UC-72J / UC-72L

The Waco N series is a range of 1930s American-built cabin biplanes with a fixed tricycle undercarriage introduced in 1937. It was based on the Waco C series five-seat Custom Cabin Waco with that model’s curved pointed wings, but with a fixed tricycle undercarriage and a modified tail with a lower rudder extension to give increased side area. The Waco N was fitted with flaps on all four wings to improve the aircraft’s landing characteristics.

The prototype, was designated ZVN-7, with the ‘7’ indicating its year of manufacture (1937), and was powered by the 285 hp (213 kW) Jacobs L-5 engine. Only around 20 examples of the N series were completed, as the AVN-8, and ZVN-8. This included ZVN-9 NC19362, NC19372, NC19374, and NC19399. NC19399 was impressed by USAAF as UC-72L.

Fifteen AVN-8 were built, priced at $12,800; NC17, NC2276, NC2278, NC2273, NC19356, NC19361, NC19367/19370, NC19377/19378, NC19385, NC19387, and NC20904, of which 4 were impressed by USAAF as UC-72J.

A few were impressed by the USAAC during the Second World War as the UC-72J and UC-72L. One AVN-8 was used by the Royal Aircraft Establishment at Farnborough, Hampshire, for trials with tricycle landing gear.

Gallery

AVN-8
1938 ATC 677
Engine: 1 × Jacobs L-6, 330 hp (246 kW)
Wingspan: 34 ft 9 in
Wing area: 246 sq.ft
Length: 27 ft 7 in
Height: 8 ft 6 in
Empty weight: 2,493 lb
Gross weight: 3,800 lb
Maximum speed: 161 mph
Cruise speed: 139-151 mph
Stall: 60 mph
Service ceiling: 14,200 ft
Rate of climb: 900 ft/min
Range: 550-600 mi
Crew: 1
Passengers: 3
15 built

ZVN
6 built.

ZVN-7
1937 (ATC 686)
Engine: Jacobs L-5, 285 hp (213 kW)
Wingspan: (upper) 34’9″
Wingspan (lower) 24’6″
Length: 26’8″
Useful load: 1249 lb
Max speed: 157 mph
Cruise speed: 140 mph
Stall: 55 mph
Range: 600 mi
Ceiling: 13,000′
Cost: $9,985
No built: 1, NC17731
Seats: 4

ZVN-8 / UC-72L
Engine: Jacobs L-5, 285 hp (213 kW)
1938 (ATC 686)
Wingspan: (upper) 34’9″
Wingspan (lower) 24’6″
Length: 27’7″
Useful load: 1200 lb
Cost: $10,695
No built: 5

Waco CUC / UC-72F

1935 Waco CUC

Thirty+ built of all the 1935 Custom Cabin Biplanes (Sesquiplanes) CUC types were built priced at $8,400-8,975 with ATC 575.

Waco CUC-1

The CUC-1 and CUC-2 were built as CUC and re-engined.

One CUC-1, NC15237, was impressed by the USAAF as UC-72F. South African Air Force impressed at least ten Wacos of different types (CUC and YOC)

Waco CUC-2 N14625

CUC
Engine: Wright R-760-E, 250 hp (186 kW)
Wingspan: 35’0″
Length: 25’3″
Useful oad: 1198 lb
Max speed: 163 mph
Cruise speed: 143 mph
Speed: 55 mph
Range: 600 mi
Ceiling: 16,500′
Seats: 4-5

CUC-1 / UC-72F
Engine: Wright R-760-E1, 285 hp (213 kW)
Seats: 4-5

CUC-2
Engine: Wright R-760-E2, 320 hp (239 kW)
Seats: 4-5

Waco CJC / DJC

1934 Waco CJC NC14136

A Waco standard cabin biplane.

1935 Waco CJC

The 1936 DJC-S was a CJC with a 285hp Wright R-760 engine.

Waco DJC-S NC15231

Priced at $8,165, forty-one CJC, CJC-S (ATC 538) & DJC were built of which 20 were exported to Brazil. The -S denoted “Standard” model.

CJC
1934 Waco CJC NC14035

Gallery

CJC
Date: May 1934
Engine: Wright R-760-E, 250 hp(186 kW)
Length OA: 25’8″(7.82m)
Span (upper): 34’10″(10.62m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 152 mph(245 km/h)
Empty weight: 1,976 lb(896 kg)
Max gross weight: 3,200 lb(1,452 kg)
Maximum load: 1,224 lb(555 kg)
Price: $8,365

CJC
Date: May 1934
Engine: Wright R-760-E, 250 hp(186 kW)
Length OA: 28’10″(8.79m)
Span (upper): 34’10″(10.62m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 132 mph(212 km/h)
Empty weight: 2,296 lb(1,041 kg)
Max gross weight: 3,650 lb(1,656 kg)
Maximum load: 1,354 lb(614 kg)

CJC-S
Date: 1935
Engine: Wright R-760-E, 250 hp(186 kW)
Length OA: 25’8″(7.82m)
Span (upper): 34’10″(10.62m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 152 mph(245 km/h)
Empty weight: 1,941 lb(880 kg)
Max gross weight: 3,200 lb(1,452 kg)
Maximum load: 1,359 lb(616 kg)
Price: $7,000

CJC / CJC-S
1934
Engine: 250hp Wright R-760
Wingspan: 34’10”
Length: 25’8″
Useful load: 1224 lb
Max speed: 152 mph
Cruise speed: 134 mph
Stall: 52 mph
Range: 640 mi
Seats: 4-5

Waco UEC / OEC / BEC

UEC

The 1932 OEC (ATC 468) was priced at $5,885 and three were built; NC12440, NC12451, and NC12467. The prototype was sold as UEC.

Waco OEC NX12440
UEC

Forty of the 1932 Waco UEC (ATC 467) were built, selling for $5,985. A float conversion was available under ATC 2-418.

Waco UEC NC12468

Gallery

UEC
Mar 1932
Engine: Continental R-670, 210 hp (157 kW)
Length OA: 24’8″(7.52m)
Span upper: 33’3″(10.13m)
Span lower: 28’2″(8.59m)
Empty weight: 1,670 lb (758 kg)
Max gross weight: 2,700 lb (1,225 kg)
Maximum load: 1,030 lb (470 kg)
Maximum speed: 133 mph (214 km/h)
Cruise: 117 mph
Stall: 49 mph
Range: 450 mi
Seats: 4
Price: $5,985
40 built

OEC
Mar 1932
Engine: Kinner C-5-210, 210 hp (157 kW)
Length OA: 24′ 9″ (7.54m)
Span upper: 33′ 2″ (10.13m)
Span lower: 28′ 2″ (8.59m)
Empty weight: 1,667 lb (756 kg)
Max gross weight: 2,700 lb (1,225 kg)
Maximum load: 1,033 lb (469 kg)
Maximum speed: 133 mph (214 km/h)
Cruise speed: 119 mph
Stall: 49 mph
Range: 450 mi
Price: $5,985
Seats: 4
3 built

BEC
Apr 1932 ATC 472
Engine: Wright R-540, 165 hp (123 kW)
Length OA: 24’10” (7.57m)
Span upper: 33’3″ (10.13m)
Span lower: 28’2″ (8.59m)
Maximum speed: 120 mph (193 km/h)
Empty weight: 1,650 lb (748 kg)
Max gross weight: 2,650 lb (1,202 kg)
Maximum load: 1,000 lb (450 kg)
Seats: 4
1 built, [NX12440], (converted to OEC or UEC).

Waco DKS / HKS / UKS / VKS / YKS / ZKS / C-72 / HPF

YKS-7

When Waco released its slightly larger custom cabin series, those original Cabin series aircraft it continued to produce were re-designated as ‘Waco Standard Cabin series’, with the final designation letter changing from C to C-S to S. For instance in 1935 the YKC became the YKC-S, then the YKS-6 in 1936. All three were indistinguishable from each other. Waco used numeric suffixes like -7 to indicate a sub-variant introduced in 1937 and so on. The standard cabin can be subdivided again into three groups, early examples having a boat-tail skylight (QDC, OEC & UEC), mid series aircraft with a faired skylight (CJC, UIC, UKC, YKC) or late examples with no skylight (DJC-S, HKS, ZKS, UKC-S UKS-7, VKS-7, YKC-S, YKS-6 & 7, ZKS-6 & 7). All of the types built under the C-S and S designators lacked a skylight though the skylight could be faired over on earlier aircraft. Later types were also slightly longer than earlier models.

Waco ZKS-6

Probably only one DKS-6 was built, in 1936.

From about 1937, all S series aircraft had wings lacking leading and trailing edge cutouts. Externally, the S series differed from the Custom or later C series in continuing with early C series features such as ailerons on both wings, linked by a prominent strut, and square edged rear side windows. Like most Waco aircraft, the S series were available with many different engines (identified by the first letter of the type designation).

The S series proved to be popular with both commercial and private pilots and over 50 were still airworthy in 2001, including examples of the CPTP VKS-7F version. During the Second World War several S series aircraft were impressed by the USAAF as the UC-72K or UC-72M and used as Liaison, executive light transport and instrument refresher training aircraft. Two VKS-7 became UC-72D, one YKS-7 became UC-72K, and two ZKS-7 became UC-72M, in 1942.

1936 Waco YKS-6

The 29 ZKS-6 & 7 built were re-designated from ZKC-S in 1936.

Waco YKS-6

65 YKS-6 built and 21 ZKS-7 1937(ATC 626) built at $5,695, one was converted to HKS-7 (300 HP Lycoming R-680-13 in 1947).

Waco YKS-7 NC19371

One YKS-7 was impressed by the USAAF as UC-72K in 1942 (NC19353) and one to the USN (09784).

Waco HKS-7 NC50662

The HKS-7 and HPF-7 of 1948 were not Waco production, but UKS (HKS-7) and UPF (HPF-7) modified with 300hp Lycomings (hence the “H”) and issued an STC. Two were reported as converted, NC29998 and NC32065, the latter reregistered NC50662.

Waco HPF-7 NC32065

Two of the 1937 UKS-7(ATC 648) were built, NC17721 and a CF- registered example, priced at $5,980.

Waco UKS-7 NC17721

Eighteen 1937 VKS-7 (ATC 648) were built at $5,980, of which two were impressed by USAAF as UC-72D (NC2307 and NC20955. Twenty-one VKS-7F cross-country trainers with controllable-pitch propeller went to the CPTP, with some repowered with 250hp W-670.

Waco VKS-7F NX31658

Six 1934 ZKS/ZKS-6 (ATC 533) were built; NC49, NC14050, NC17456, NC17460, CF-BDK, CF-BBQ, the ZKS-6 appearing in 1936. Redesignated ZKC-S Standard in 1935.

Waco ZKS-6 NC330TC

Eighty-six YKS-7/ZKS-7 were built, of which two ZKS-7 were impressed by the USAAF as UC-72M (NC2628, NC20954) and two as UC-72P (NC20909, NC20950). The 1937 ZKS-7 (ATC 626) was priced at $6,435.

Waco ZKS-7 NC17701

Gallery

Variants:

DKS-6
Engine: Wright R-760, 285hp
Seats: 4

HKS-7
Date: 1939, 1947
Engine: Lycoming R680-13, 300 hp (224 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 168 mph (270 km/h)
Empty weight: 2,020 lb (916 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,322 lb (600 kg)
Price: $7,600

UKC / UKC-S / UKS-6
Engine: Continental R-670, 2100NaN0p
40 built.

UKS-6
Engine: Continental R-670-K, 210 hp (157 kW)
2 built

UKS-7
Date: Jun 1937
Engine: Continental W-670-K, 225 hp (168 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 147 mph (237 km/h)
Empty weight: 1,907 lb (865 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,343 lb (609 kg)
Price: $5,890

UKS-7
Engine: Continental W-670M, 225hp
Wingspan: 33’3″
Length: 25’3″
Useful load: 1343 lb
Max speed: 147 mph
Cruise speed: 130 mph
Stall: 50 mph
Range: 500 mi
Seats: 4-5

VKS-7
Engine: Continental R-670-B, 2250NaN0

VKS-7
Date: Jun 1937
Engine: Continental W-670M, 240 hp (179 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Empty weight: 1,917 lb (870 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,333 lb (605 kg)
Maximum Speed: 149 mph (240 km/h)
Cruise speed: 133 mph
Stall: 50 mph
Range: 530 mi
Seats: 4-5
Price: $5,890
18 built

VKS-7
Date: 1938
Engine: Continental W-670M, 240 hp (179 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 145 mph (233 km/h)
Empty weight: 1,960 lb (889 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,290 lb (585 kg)
Price: $7,770
18 built

VKS-7F
Date: Jun 1937
Engine: Continental W-670M, 240 hp (179 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Height: 8 ft 6 in (2.59 m)
Wing area: 244 ft2 (22.69 m2)
Empty weight: 2,256 lb (1,023 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 994 lb (451 kg)
Maximum Speed: 145 mph (233 km/h)
Cruise speed: 127 mph (204 km/h)
Range: 518 miles (833 km)
Service ceiling: 13,000 ft (3,962 m)
Rate of climb: 850 ft/min (4.3 m/s)
Crew: 1
Capacity: 3 or 4 passengers
Price: $12,500
Built for Civilian Pilot Training Program as navigational trainer
F designates use of flaps
21 built

YKS-6
Date: 1936
Engine: Jacobs L-4, 225 hp (168 kW)
Length OA: 25’4″(7.72m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 144 mph (232 km/h)
Empty weight: 1,809 lb (821 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,441 lb (654 kg)
Price: $4,995

YKS-7
Date: Feb 1937
Engine: Jacobs L-4M/MB, 225 hp (168 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Empty weight: 1,882 lb (854 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,368 lb (621 kg)
Maximum Speed: 146 mph (235 km/h)
Cruise speed: 130 mph
Stall: 50 mph
Range: 590 mi
Seats: 4-5
Price: $5,695

ZKS / ZKS-6
Engine: Jacobs L-5, 285hp
Wingspan: 33’3″
Length: 25’4″
Seats: 4

ZKS-6
Engine: Jacobs L-5, 225 hp (168 kW)

ZKS-7
Engine: Jacobs L-4, 225 hp (168 kW)

ZKS-7
Date: Feb 1937
Engine: Jacobs L-5, 285 hp (213 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Empty weight: 1,928 lb (875 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,322 lb (600 kg)
Maximum Speed: 153 mph (246 km/h)
Cruise speed: 136 mph
Stall: 50 mph
Range: 560 mi
Seats: 4-5
Price: $6,135

Waco C Series / ODC / PDC / QDC

The 1931 Waco Model C “QDC” four place cabin biplane marked the entry of Waco in the field of cabin aircraft to compete with such established manufacturers as Bellanca and Stinson. The ship was powered with a Continental 165 hp engine and equipped with a metal propeller, cowl ring, electric starter, dual controls, brakes and tail wheel. The control wheel is on a jointed column, so that the ship can be piloted from the right or left, and the rudder pedals are dual.

The QDC was slightly shorter that the UOC and was 500 lb lighter. WACO replaced the QDC in 1933 with its most successful cabin design, the UIC.

The four place ODC of 1931 was priced at $5,885, and was modified to QDC.

Waco ODC NX11250

Two 1931 PDC (ATC 2-388) were specially modified three seat cabin biplanes built on special order.

Gallery

ODC
Engine: Kinner C-5, 210hp
Wingspan: 33’0″
Length: 24’9″
Useful load: 1033 lb
Max speed: 133 mph
Cruise speed: 117 mph
Stall: 49 mph

PDC
Engine: Jacobs LA-1, 170 hp
Seats: 3

QDC
1931 ATC 412
Engine: Continental A-70-2, 165 hp (123 kW)
Length OA: 23’2″ (7.06m)
Span upper: 33’3″ (10.13m)
Span lower: 28’2″ (8.59m)
Empty weight: 1,530 lb (694 kg)
Max gross weight: 2,507 lb (1,137 kg)
Maximum load: 977 lb (443 kg)
Maximum speed: 116 mph (187 km/h)
Cruise speed: 105 mph
Range: 400 mi.
Stall: 48 mph
Seats: 4-5
Price: $5,985
37 built.

Waco UKC / YKC

UKC-S

WACO delivered 83 UICs before replacing the model with the UKC/YKC/CJC series of standard cabin aircraft in 1934. These trendy airplanes became a favourite of aviators like Jacqueline Cochran and corporate magnates such as Henry Dupont.

Forty 1934 UKC (ATC 528) were built selling for $6,285, redesignated UKC-S Standard in 1935, and UKS-6 in 1936.

Waco UKC EDO floats for CAA NS20

60 YKC built, 22 YKC-S built.

YKC

Gallery

UKC
Date: Mar 1934
Engine: Continental R-670-A, 210 hp(157 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 143 mph(230 km/h)
Empty weight: 1,745 lb(792 kg)
Max gross weight: 2,850 lb(1,293 kg)
Maximum load: 1,105 lb(501 kg)
Price: $6,285

UKC
Date: Mar 1934
Engine: Continental R-670-A, 210 hp(157 kW)
Length OA: 28’10″(8.79m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 126 mph(203 km/h)
Empty weight: 2,131 lb(967 kg)
Max gross weight: 3,250 lb(1,474 kg)
Maximum load: 1,119 lb(508 kg)

UKC-S
Date: 1935
Engine: Continental R-670-A, 210 hp(157 kW)
Length OA: 25’3″(7.70m)
Span (upper): 33’3″(10.13m)
Span (lower): 28’3″(8.61m)
Maximum Speed: 138 mph(222 km/h)
Empty weight: 1,720 lb(780 kg)
Max gross weight: 3,000 lb(1,361 kg)
Maximum load: 1,280 lb(580 kg)
Price: $5,225

YKC
Date: Apr 1934
Engine: Jacobs L-4, 225 hp (168 kW)
Length OA: 25’4″ (7.72m)
Span (upper): 33’3″ (10.13m)
Span (lower): 28’3″ (8.61m)
Maximum Speed: 149 mph (240 km/h)
Empty weight: 1,800 lb (817 kg)
Max gross weight: 2,850 lb (1,293 kg)
Maximum load: 1,050 lb (480 kg)
Seats: 4
Price: $6,450

YKC
Date: Apr 1934
Engine: Jacobs L-4, 225 hp (168 kW)
Length OA: 28’10” (8.79m)
Span (upper): 33’3″ (10.13m)
Span (lower): 28’3″ (8.61m)
Maximum Speed: 130 mph (209 km/h)
Empty weight: 2,186 lb (992 kg)
Max gross weight: 3,250 lb (1,474 kg)
Maximum load: 1,064 lb (483 kg)
Seats: 4

YKC-S
Date: 1935
Engine: Jacobs L-4, 225 hp (168 kW)
Length OA: 25’4″ (7.72m)
Span (upper): 33’3″ (10.13m)
Span (lower): 28’3″ (8.61m)
Maximum Speed: 143 mph (230 km/h)
Empty weight: 1,773 lb (804 kg)
Max gross weight: 3,000 lb (1,361 kg)
Maximum load: 1,227 lb (557 kg)
Sets: 4
Price: $5,490

YKC-6
Date: 1936
Useful load: 1441 lb
Max speed: 144 mph
Cruise speed: 130 mph
Stall: 54 mph

Waco UIC

Waco replaced the QDC in 1933 with its most successful cabin design, the UIC. Powered by a 210-horsepower Continental radial engine, the UIC was a four-person biplane with a conventional fixed tail wheel landing gear. The well-appointed cabin was accessed by automobile-style doors on each side, with a pair of individual front seats and a roomy rear bench seat for another two passengers.

The UIC’s fabric-covered fuselage was constructed from welded steel tubing, shaped with wooden formers and stringers while the wings were fabricated with spruce spars, spruce and wooden ribs, and aluminium edges. Ailerons on both wings were covered in aluminium and connected with push-pull struts that operated them in pairs. The UIC’s stable handling characteristics were considered to be forgiving, with good performance. Delivered with a full set of flight controls and instrumentation, the UIC was priced at a modest $6,000, well within the reach of smaller corporations and airlines.

WACO delivered 83 UICs (ATC 499), including prototype NC13061, selling for $5,985 before replacing the model with the UKC/YKC/CJC series of cabin aircraft in 1934.

Waco UIC ZK-ADE

Gallery

UIC
Date: Mar 1933
Engine: Continental R-670, 210 hp / 157 kW
Length OA: 25’2″ / 7.67m
Span (upper): 33’3″ / 10.13m
Span (lower): 28’3″ / 8.61m
Maximum Speed: 140 mph / 225 km/h
Empty weight: 1,690 lb / 767 kg
Max gross weight: 2,800 lb / 1,270 kg
Maximum load: 1,110 lb / 500 kg
Max speed: 136 mph
Cruise speed: 118 mph
Stall: 49 mph
Range: 550 mi
Seats: 4
Price: $5,985

UIC
Date: Mar 1933
Engine: Continental R-670, 210 hp / 157 kW
Length OA: 28’11” / 8.81m
Span (upper): 33’3″ / 10.13m
Span (lower): 28’3″ / 8.61m
Maximum Speed: 126 mph / 203 km/h
Empty weight: 2,079 lb / 943 kg
Max gross weight: 3,250 lb / 1,474 kg
Maximum load: 1,171 lb / 531 kg