Major airlines around the world are characterised by one common factor: fleet unification. At One Air we have applied this same concept to the training of our pilots using the new generation of Diamond aircraft equipped with the latest technology. Flight training in Spain with Grupo One Air. Your Aviation fleet in Spain

logo one air, easa, ato and spain goberment

The fleet we use at our Flight School is also used worldwide by the best world training centers, including the very USA Air Force.

From One Air Group we have invested in what we consider done of the most important and valuable basis when training pilots, which is also one of the most valued by the different Airlines.  Grupo One Air is Easa Authorized flight School in Spain 

At One Air in Spain you will fly the following aircraft: DA20 C1 Eclipse, DA40 Garmin 1000 and DA42 Garmin 1000.


Single engine two-seater aircraft used by the US airforce as a primary trainer.

Primary controls are operated by a stick and, due to the nature of it’s cockpit, offers exceptional visibility.

The fuselage is fabricated from a combination of carbon fibre and glass fibre offering superior performance.

The DA20 uses a combination of analog and Garmin GNS430 digital avionics.

The Diamond DA-20 has one of the highest glide factors of its type. The DA-20 C1 factor is 14: 1.

The C-1 Eclipse version inside the DA20 is the best equipped, with rear windows for better visibility.

In One Air we have chosen the Eclipse version for our aircraft. The aircraft is powered by a 125 hp (93 kW) Continental IO-240-B engine which offers exceptional power / weight ratio for best performance.


  • Velocity Never Exceed (Vne): 164 kt
  • Cruising Speed: 138 kt
  • Stall Speed (Vs): 42 kt
  • Range: 1.013 km
  • Service Ceiling: 13.123 ft
  • Climb Rate: 1.200 ft/min

DA40 GARMIN 1000:

Single engine four-seater aircraft. Like other Diamond aircraft, the fuselage is fabricated from carbon fibre and composite materials.

The fact that the DA40 is used by air forces around the world is a testament to it’s quality and durability.

In One Air we have equipped the DA40 with the latest technology and luxury items such as Garmin 1000 avionics, autopilot, radar, leather seats and much more!

There are several engine versions available, and at One Air we have chosen the most powerful variable pitch one with 180 hp and Lycoming IO-360-M1A direct injection engine.


  • Velocity Never Exceed (Vne): 183 kt
  • Cruising Speed: 147 kt
  • Stall Speed (Vs): 51 kt
  • Range: 1.200 km
  • Service Ceiling: 16.000 ft
  • Climb Rate: 1.200 ft/min

DA42 GARMIN 1000:

Flight Training in Spain with the twin engine Diamond DA42 is made of carbon fibre and, in our high spec Platinum Edition, is fully equipped with Garmin 1000 IFR suite, autopilot, weather radar, TCAS (Traffic Collision Avoidance System), TKS anti-icing system, long range fuel tanks and FADEC digital engine controls.

In its first variant, the DA42 Twin Star was the first fixed-wing aircraft powered by Diesel engines to cross the North Atlantic non-stop. It departed from London to St. John (Ontario, Canada), a flight that took 7 and a half hours, departing from there towards Porto (Portugal), making the journey in a 12 hours and a half flight.

There are variants of the DA42 designed under the UK Ministry of Defense specifications, such as one equipped with surveillance systems, converted by DO Systems.

Without a doubt the best twin in the air!

General Characteristics

  • Crew: 1 Pilot
  • Capacity: 3 passengers
  • Length: 8,6 m (28,1 ft)
  • Wingspan: 13,4 m (44 ft)
  • Height: 2,5 m (8,2 ft)
  • Empty Weight: 1 251 kg (2 757,2 lb)
  • Gross Weight: 1 786 kg (3 746,8 lb)



  • Garmin 1000 flight system

Sample questions and answers for airplane pilot exams

Here we leave some of the typical questions that can be found and that may be of interest.

To consider that the real aviation exams are test type with 4 possible answers A, B, C, D

  • 1 – In which places the Navigation lights of an aircraft are located and how much of visible arc do they create?

Navigation lights of an aircraft are located in three places. Two lights in two wings tips and the other one in APU tail cone. Port side wing tip is fitted with the red color navigation light and the star board light is green in color while the tail cone navigation light is white. Two lights in the wing tips having a visible arc of 110 degrees while light in the APU tail cone having a visible arc of 140 degrees.

  • 2 – Assume that the total air pressure at 39,000 Ft is 164 mmHg. Explain how you calculate the Oxygen partial pressure at that altitude.

Oxygen concentration remains unchanged even at cruising altitude from the figures in sea level. So the oxygen concentration in the considered altitude is 21%. To calculate the partial pressure, total pressure should be multiplied by the Oxygen concentration. Then the answer will be Oxygen partial pressure at 39,000 Ft.

164 × (21 ÷ 100) = 34.4 mmHg

view of the top of the diamond plane 42 from the sky flying on the sand of the beach
  • 3 – Explain what aileron reversal is and when it will happen.

This is a phenomenon peculiar to high speed flight or when the aileron is at high dynamic pressure. When the aileron is deflected to either up or down it creates a twisting deformation on the wing. At high speeds this twisting force created by the aileron on the wing is greater and the wing deformation will nullify the effect of aileron.

  • 4 – Explain briefly the reason behind the adverse yaw and what should be done to eliminate it?

Adverse yaw is an unintentional yaw that occurs due to intentional roll. When an aircraft rolls to left or right, the up going wing (down going aileron) is having a higher drag due to the higher lift generated. The down going wing having the lower drag compared to up going wing. Due to this drag imbalance aircraft is yawed towards the wing with the higher drag, away from the turn. Aileron reversal can be eliminated by using Frise ailerons, different deflecting ailerons or using spoilers for roll control.

diamond aircraft logo
  • 5 – If you are encountering Vertigo what symptoms will you feel and explain how should you act?

Mainly unsteadiness or lightheadedness will be felt while having the feeling of surrounding is rotating around the person. Hence vertigo will lead to spatial disorientation, the person should not rely on his own stimulus. Always should rely on the instruments rather than what he is seeing. If he is the pilot flying always try to hand over the controls to the other pilot or if he is flying by himself he should try regain stability by tilting his head left and right while keeping his eyes closed. Whatever he does, he should maintain concentration on the instruments and fly the airplane.

  • 6 – What are the symptoms of Hypoxia and what should you do if such symptoms are felt?

The affected person may feel air hunger, impairment of actions, tiredness, excessive fatigue, increasing heart rate, euphoria and ultimately he will be unconscious. The person should react as soon as possible when he felt above symptoms to avoid being unconscious. First action should be donning the masks. Decompression at high altitudes having the highest threat because consciousness will be maintained only for very low amount of time.

view of the upper part of the seats of an aircraft diamond gives 42

Contact with Grupo One Air Aviation