Sunday, April 30, 2023

Things he did

  1.  In tirupathi, on 23rd April , when in room waiting for the full day, he told "Enaku pasikuthu " for the first time. Not sure if he was bored or really hungry, but he understood the concept of calling for food unambiguosuly.
  2. Yesterday on 30th May, when asked where his white hot wheels car was, he left the room, went to his toy basket, pretended to search and told "white car kaanom".
  3. On Saturday, 29th May, when I came back from Vishakapatnam in flight, and entered room, he asked "Enga pona?", meaning how you went. I told I went by Bike. He replies "Dai, nee aeroplane pona.". Then "Appa, naa aeroplane ponum".

Saturday, April 8, 2023

#10 Helicopter: Engines with 20 HP

  1.  HP and PS are almost same
  2. 20HP engines are in Bullet Honda Hness. No weight information given.
  3. Can make Aerolite 103 type aircraft with 2 of these engines
  4. Or go and make electric motor that rotates at the same RPM as the propeller or main rotor and use that.




  5. Rotax 447 40HP is 29 kg in weight


Thursday, April 6, 2023

#9 Helicopter: 2 Designs of manned home built helicopter

  1.  Nolan co-axial helicopter = https://www.youtube.com/watch?v=B21Xk6tNcBw&ab_channel=AdamAitken
  2. BTD1982 = https://www.youtube.com/watch?v=Pz8ObaByc1M&ab_channel=btd1982
  3. Cameron Carter
  4. Airscooter 2 = https://www.youtube.com/watch?v=V8zqG4LRnrE&ab_channel=LightSportandUltralightFlyer
  5. MikeUSA777 =  https://www.youtube.com/watch?v=EIBQIUANlyY&ab_channel=MikeUSA777
  6. Franz Schurmann

Saturday, April 1, 2023

Projects completed

  1.  Digital controller based on TM4C123 for single axis AMB
  2.  Digital controller based on TM4C123 for two axis AMB
  3. Mechanical and electrical test rig design, assembly and testing for single axis AMB (3 versions)
  4. Mechanical and electrical test rig design and assembly for two axis AMB 
  5. Design and construction of half bridge based PWM power amplifier for AMB, 1 channel
  6. Design and construction of full bridge based PWM power amplifier for AMB, 16 channel
  7. Design and construction of DC power supply system for AMB
  8. Design and construction of signal generator to mimic eddy current signal with sine and triangular wave forms
  9. Radial AMB simulation model with flexible rotor
  10. Radial AMB simulation model with rigid rotor
  11. Automated FEM model of radial AMB using FEMM tool 
  12. LQR and PID control design software for tuning radial and thrust AMB