Aeromodelling #1 Gliders

    Aeromodelling Glider is the first step in modelling a Radio Controlled (RC) Plane and you learn it all here at this workshop of “The Theory Of Flight” where you not only learn modelling a glider but also get an opportunity to compete with other gliders and achieve top positions.


    In this event, we’ll let the students know how to use the principles of aerodynamics as applied to Gliders, by implementing them to design and fabricate hand-made unmanned aircrafts.

 

Strive for the maximum Glide Ratio !

   A competition namely “Aero Glider Race” will be conducted where the participants will have to design and build an unpowered glider using their best of the knowledge gained from the workshop and make the gliders glide in air with the objectives of traversing maximum distance (to check glide ratio) and which stays in air for maximum time. Points will be awarded based on Innovation, range and maximum time of flight.

Participants will get a chance to join us for various RC Plane competitions (Techfests) to be held at many institutions such as IITs and NITs based on the performance.

 

Annexures

 1. General Rules for the competition:

  • The glider should not contain any power source or propellant such as engine, electric motors, etc.
  • The glider should be hand launched, use of any mechanical launch system is strictly not allowed.
  • Teams need to use only the components specified by the organization to make their gliders.
  • Each team will be given 3 attempts from which the attempt of highest score will be considered for evaluation.
  • The team with maximum possible points will be the winner.
  • The teams will be responsible if their glider is lost or damaged.
  • Points will strictly be given according to the criteria given in Judging section.
  • The decision of event coordinators will be final and should be taken in best spirit by all the teams.

 2. Judgment and Evaluation:

    Points Distribution:

  • Distance travelled: 
    • 5 points per meter (applicable from the line of start to be decided by the organization 0-10m)
    • 10 points per meter (applicable for distance after 10m only)
  • Time of Flight: 10 points per second
  • Smooth landing: 5 points
  • Points based on design (innovation) may be given based on explanation of model and will be maximum 10 points

 

Team size: 4 members.

“A glider kit will be provided to each team”

 

Registration Fee: 200 INR per participant.

 

Felicitation:

  • Certificates of Participation for all the registered participants.
  • Certificates of Merit for 1st three position holders.

 

Minute to Minute Schedule:

Sr No.

Date / Day

Event Schedule

Timings

1.

16th September, 2017

(Saturday)

Lecture

5:30 pm To 7:30 pm

2.

17th September, 2017

(Sunday)

Kits to be provided

Lecture & Aeromodelling Gliders

10:30 am To 1:00 pm

 

 

Break

1:00 pm To 2:00 pm

 

 

Aeromodelling Gliders (Practicals)

2:00 pm To 3:00 pm

3.

29th October, 2017

(Sunday)

Competition (Aero Glider Race)

10:00 am

 

Contact our coordinators and get your E-tickets:

Sr. No.     Name                                  Contact No.       Residence           Branch

(1)          Gaurav Kumar (Co CEO)  -  8699957602  -  BH 7                -  CSE

(2)          Kuntal Bhadury                  -   9915740196  -  BH 3                -  EEE

(3)          Sandeep Sharma               -  9888369658   -  BH 6                -  ME

(4)          Hemant Jangid                  -  9569520717   -  Day Scholar      -  ECE

(5)          Prasenjit De                       -  9115513609   -  BH 7                -  ECE

(6)          Hemant Sharma                -  8930830667   -  BH 5                -  ME

(7)          Shubham Mishra               -  9056584083   -  BH 7                -  ME

(8)          Ashish Sharma                  -  7696510944  -  Day Scholar      -  EEE

(9)          Dinesh Devrieddy              -  9915737179   -  BH 7                -  ECE

(10)        Pavan Kumar Viriyani         -  9618324190  -  BH 7                 -  ECE

(11)        Videep Virat                        -  7782077576  -  BH 5                 -  ME

(12)        Rajdeep Singh Dhanjal       -  9006987313  -  BH 1                 -  EEE

(13)        Hitesh Sangwan                 -  9896275607  -  BH 1                -  CSE

(14)        Aditya Kumar                     -  8727860532  -  BH 6                -  CSE

(15)        Shekh Ataul                       -  8299729791  -  Day Scholar      -  CSE

(16)        Abhisek Chhotray               -  7894362801  -  BH 5                 -  IT

(17)        Rishi Bajpai                       -  8427958481  -  BH 5                 -  ECE

(18)        Vishal Kumar Singh            -  7978814454  -  BH 5                 -  ME

(19)        Sarvesh Dhar                     -  9454542135  -  BH 3                 -  ECE

(20)        Akash Singh                      -  8146512566  -  BH 1                  -  CSE

(21)        Praveen Patel                     -  9926013762  -  BH 5                  -  ECE

(22)        M.Bhuvan Sundhar Reddy  -  8247862026  -  BH 2                  -  EEE

(23)        Golla Ricky Ajith                 -  9849876191  -  BH 5                  -  ECE

(24)        Yarra raviteja                      -  7330642163  -  BH 2                  -  ECE

(25)        Banty Gupta                       -  9124360418  -  Day Scholar       -  EEE

 

Note:

Stay updated about the event over here.

  

Here are some important points need to be considered for the compitition which were taught by RTRA Founder & CEO during the workshop including some new points :
 
(1) Details of the Glider which was made during the workshop are as follows:
 
  (a) Wing Configuration : Rectangular Tip Dihedral
 
  ‎(b) Wing Span (S) (including 2 winglets) : 25 + 70 + 25 = 120 cm
 
  ‎(c) Chord length (C) : 15 cm
 
  ‎(d) Aspect Ratio : (Wing span)² / (Wing Area)
  ‎For rectangular wing: (S)² / (S * C) 
                                     = S/C 
                                     = 120/15 
                                     = 8
 
  ‎(e) Fuselage (Aircraft body) Length = 75% of wingspan  
                                                             = ¾ * (wingspan without winglet) 
                                                             = ¾ * (70) 
                                                             = 52.5 cm
 
  ‎(f) Dihedral Angle : 15°
 
 
(2) Aeromodelling Advises by RTRA CEO:
 
NoteThe following points are only meant for small scale aircrafts and are generally used based on experimentations, you may try for innovations.
 
  (a) We take Chord length of wing = Chord length of both Vertical and Horizontal stabilizer.
  ‎
  ‎(b) The Vertical stabilizer is exactly the Half of Horizontal stabilizer.
  ‎
  ‎(c) The Airfoil (Cross section of wing) should be homogeneous (same) throughout the wing, properly grinded by sand paper having smooth curves.
  ‎
  ‎(d) Make sure to add on some weight to the Glider (as we used clay earlier) so as to make it more stable and not easy to get deflected by random wind flow.
  ‎
  ‎(e) Before hand launch check whether the Centre of Gravity (CG) coincide with the Aerodynamic Centre (AC) by balancing the aircraft at 2 Points under the wing (exactly where the wing thickness is maximum) to be considered at certain distance equally apart from fuselage. The fuselage should be in between the 2 points.
  ‎
  ‎(f) Launch the Glider keeping some Angle of Descent and at specific velocity to be determined experimentally so that the Glider glides straight. If it is launched with a velocity more than required, the Glider will Stall and there will be crash landing.
  ‎
  ‎(g) For Gliders we choose wingspan first and then get the Aspect Ratio which should be between 8 to 15.
  ‎
  ‎(h) Length of the fuselage is an important factor in determining the stability of the aircraft. We can achieve same static stability with short fuselage and larger empennage (Stabilizers), or with long fuselage and smaller empennage.
 

Heartiest Congratulations to the winners!

Aero Glider Race Results:

 

1st position: Team 11

(a) Sumit Kumar Mishra

(b) P. Naga Sai Vivek

(c) Rajneesh Pratap Singh Chauhan

 

Details:

(1) Distance travelled: 77.9 meters ~ 78 meters (10m + 68m)

     First 10 meters (5 points per meter): 10*5 = [50 Points]

     Next 68 meters (10 points per meter): 68*10 = [680 Points]

 

(2) Time of flight (10 points per second): (26 seconds), 26*10 = [260 Points]

 

(3) Innovation: Highly aerodynamic model with well curved and homogeneous aerofoil throughout the wing.                                           Aerodynamically curved fuselage edges. [7 Points]

 

(4) Smooth Landing: [5 Points]

 

Total: 50 + 680 + 260 + 7 + 5 = 1002 Points

 

 

2nd position: Team 5

(a) Jeyananthan S

(b) Javid Rizwan M

 

"The only Aircraft which was statically stable and did not stall. Well maintained center of gravity (CG)"

 

Details:

(1) Distance travelled: 76.6 meters ~ 77 meters (10m + 67m)

    First 10 meters (5 points per meter): 10*5 = [50 Points]

    Next 67 meters (10 points per meter): 67*10 = [670 Points]

 

(2) Time of flight (10 points per second): (25 seconds), 25*10 = [250 Points]

 

(3) Smooth Landing: [5 Points]

 

Total: 50 + 670 + 250 + 5 = 975 Points

 

 

3rd position: Team 1

(a) Sanket Atul Munot

(b) Rishabh Dhiman

 

Details:

(1) Distance travelled: 48.85 meters ~ 49 meters (10m + 39m)

     First 10 meters (5 points per meter): 10*5 = [50 Points]

 

    Next 39 meters (10 points per meter): 39*10 = [390 Points]

 

(2) Time of flight (10 points per second): (30 seconds), 30*10 = [300 Points]

 

(3) Innovation: Trapezoidal wing configuration resulting HIGHEST time of flight in the competition. [8 Points]

 

(4) Smooth Landing: [5 Points]

 

Total: 50 + 390 + 300 + 8 + 5 = 753 Points

 
 
 
 
 
 

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