30% SCALE RC WACO YMF-5 BIPLANES - 250cc 5 CYL RADIALS - WINGS & WHEELS MODEL AIRCRAFT SHOW - 2023

THE PILOT / OWNER OF THE YELLOW WACO IS GREG HAYFIELD,
THE PILOT / OWNER OF THE WHITE WACO IS DAN HUMPHRIES,
Both models were built by modellers that died so thats why we finished them off to fly as they were only airframes we had,
Both are 30% scale,
3 meter Wing span,
Both have futaba gear with powerbox sbus systems,
both with 35kg servos all round,
Blackstar 250cc 5 cylinder radial engines,
Both were built about 8 years ago but were only flying this year,
Mine the yellow one is a Peter barth kit,
and the white one is an AMR kit,
Mine is covered in stits polifiber and painted in the same polifiber paint,
The other is solartex - I think,
The red waco is AUW of 23kg,
The white waco is 29kg,
The red waco was built by Steven archer,
Not sure about the other one but Dan Humphries owns it and we fly them together to commemorate the original owners,
Role - open-cockpit biplane
National origin - United States
Manufacturer - Waco Aircraft Company
Introduction - 1930
Status - YMF-5 in production (2013)
Primary user - private pilot owners and training schools
General characteristics
Crew : 1
Capacity : 1 trainee or passenger
Length : 23 ft 1 in (7.04 m)
Wingspan : 30 ft 0 in (9.14 m)
Height : 8 ft 5 in (2.57 m)
Wing area : 244 sq ft (22.7 m2)
Empty weight : 1,870 lb (848 kg)
Gross weight : 2,650 lb (1,202 kg)
Powerplant : 1 × Continental W-670-6A seven cylinder radial , 220 hp (160 kW)
Performance
Maximum speed : 128 mph (206 km/h, 111 kn)
Cruise speed : 114 mph (183 km/h, 99 kn)
Range : 400 mi (640 km, 350 nmi)
Service ceiling : 14,800 ft (4,500 m)
Time to altitude : 15 min to 9,000 ft (2,700 m)
Development
The Waco 'F' series of biplanes supplanted and then replaced the earlier 'O' series of 1927/33. The 'F' series had an airframe which was smaller and about 450 pounds (200 kg) lighter than the 'O' series, while continuing to provide accommodation for three persons in tandem open cockpits. A similar performance to the earlier model was obtained on the power of smaller and more economical engines.
The initial models were the INF (125 hp (93 kW) Kinner engine), KNF (100 hp (75 kW) Kinner) and the RNF (110 hp (82 kW) Warner Scarab), all of which had externally braced tailwheel undercarriages. Many further sub-models followed with more powerful engines of up to 225 hp (168 kW). The most powerful in the range was the ZPF of 1936/37, intended for executive use.
Operational history
The 'F' series was popular with private owner pilots for sporting and other uses and continued in production through the late 1930s. The tandem cockpit UPF-7 was adopted by the Civilian Pilot Training Program and continued in production until 1942 by which time over 600 had been built.
The 1934 model YMF was substantially redesigned with a longer and wider fuselage, larger rudder and other structural changes, and put into production in March 1986 by WACO Classic Aircraft of Lansing, Michigan as the YMF-5. Over 150 YMF-5s were completed as of 2017 with new examples being built to specific orders.
The WACO Aircraft Company of Ohio Inc had built three replicas by December 2011, which they designated MF.
Considerable numbers of 'F' series biplanes, both original and newly built, remain in service.
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FILMED AT THE WINGS & WHEELS SPECTACULAR HELD AT NORTH WEALD AIRFIELD ,
EPPING, ESSEX,
CM16 6AR
ON 24-25-6-2023,