The Dornier Do 27 was a German single-engine STOL utility aircraft, manufactured by Dornier GmbH (later DASA Dornier, Fairchild-Dornier). Configuration was a classic high-wing, "tail-dragger" aircraft with fixed landing gear.The Do 27 is one of the best choices when it comes to operation from small air strips. High quality workmanship combined with state of the art engineering made the Do a success in the late 50's.
History:
The Dornier Do27 was the first aircraft to enter production in Germany after World War II.
The first prototype Do27 was flown on 8 April 1955. Production took place in Germany, the first example flying in October 1956. More than 600 were build before production ended during 1965.The Do 27 traces back to the Do 25, which Professor Claude Dornier (Dornier was responsible for the Do 17 medium bomber in WW2) designed in Spain for a Spanish military requirement for a light general purpose utility aircraft. Two prototype Do 25s were built, the first was powered by a 110kW (150hp) ENMA Tigre GIVB engine and flew for the first time on June 25 1954. Subsequently CASA built 50 production aircraft as Do 27As for the Spanish air force (Spain designated the type C127).
Following this success the German military ordered the Do 27 in large numbers. Some 428 were delivered to Germany's armed forces from the mid 1950s to 1960, although these aircraft have since been retired. Small numbers were built for other military customers, and others for commercial use.
Features of the Do 27 design include a flat six Lycoming engine, a wide and relatively roomy cabin, wide track undercarriage and excellent STOL performance. The STOL performance in particular suited the Do 27 for use in undeveloped countries, and several have seen service in Africa and Papua New Guinea.
Do 27 models include the initial Do 27A and dual control Do 27B for Germany; the Do 27H series that was based on the A4 but with a more powerful engine and three blade prop; and the Do 27Q series, equivalent to the Do 27A.
The Do 27-4A which we flew with, is a light utility transport STOL aircraft, powered by one Lycoming GO-480-B1A6 engine and a Hartzell Propeller.
The cabin consists of:
a Fixed Pilot seat (adjustable on the ground) and a fixed co-pilot seat , The back-rest of this seat swivels and gives the co-pilot access to the cabin during flight.Passenger seat-bench for two facing forward with lots of leg room. The very large baggage space is located behind the seat-bench but only accessible from the cabin (no separate door).Two wing tanks with 110 liter each, some aircraft have two more wing tanks with 76 liter each.
#Average Speeds: cruising between 90 -115kt with a fuel burn of 13-16gal/h
Cross country flying is best with 100kt and calculating 14 gal/hr.
According to the aircraft manual there is NO stall speed with only the following minimum flying speeds
with nominal power and flaps45° = 27kt; idling and flaps45° = 42kt
with nominal power and flaps35° = 30kt; idling and flaps30° = 43kt
these minimum speeds are established above actual stall.Performance on take off and landing depends extremely on the weight (40% useful load) and on the procedure used,roll for take off and landing are from 80-150mdistances (over 15m/50ft obstacle) are double.Cross wind landings or better landing rolls in cross wind are a challenge!
The tail-wheel is free turning and not connected with the pedals. The fin and rudder was designed for slow flight-speeds and together with the body the lateral surface is very large. (one solution; land into the wind.The aircraft handles rough surfaces and off field operation extremely well.Today, more than 45 years after the last Do 27 left the production line, there are perhaps 100 Do’s still in flyable condition. Most of them are based in Europe, a few in America and as far as we could determine only 3 in South Africa
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#Powerplants
Do 27H2 - One 255kW (340hp) Lycoming GSO480B1B6 flat six piston engine driving a three blade Hartzell propeller. Do 27Q5 - One 200kW (270hp) GSO480B1A6 driving a two blade prop.
#Performance
Do 27H2 - Max speed 245km/h (132kt), high speed cruise 212km/h (115kt), economical cruising speed 180km/h (97kt). Initial rate of climb 965ft/min. Service ceiling 22,000ft. Range with max fuel and no reserves 1360km (735nm). Do 27Q5 - Max speed 232km/h (125kt), 75% power cruising speed 211km/h (114kt), 60% power cruising speed 190km/h (103kt), economical cruising speed 175km/h (95kt). Initial rate of climb 650ft/min. Service ceiling 10,800ft. Range with max fuel and no reserves 1102km (595nm).
#Weights
Do 27H2 - Empty equipped 1170kg (2580lb), max takeoff 1848kg (4070lb). Do 27Q5 - Empty equipped 1130kg (2490lb), max takeoff 1848kg (4070lb).
#Dimensions
Do 27H2 & Q5 - Wing span 12.00m (39ft 5in), length 9.60m (31ft 6in), height 2.80m (9ft 2in). Wing area 19.4m2 (208.8sq ft).
#Capacity
Pilot and passenger side by side with between four and six passengers behind them. Can carry freight with rear seats removed.
#Production
Total Do 27 production of 577, including 195 Do 27A1s, 75 Do 27A3s, 54 A4s, 88 D1s, 18 B3s, one H1, 12 H2s, one Q3, 34 Q4s and one Q5
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