Civil aviation related bullet points

 

      AE2100 engine developed for civil use

      MTA is 14 to 18 ton medium transport aircraft.

      RTA is on civilian side

      RTA similar to C295

      40-90 seats work for Indian high altitude airports

      First we should develop SAF engines à then hybrid engine à then all electric

      GE is focusing on hybrid engine directly

      By 2023 all major engines in the world will be SAF compatible.

      Civil electrical aircraft is unlikely

      EVTOL electrical aircraft will come by 2025

      Developing gas turbine engine core is difficult.

      Better to develop engine around existing core.

      Indian govt will not fund full program up to production

      Business case for civil aircraft development?

o   RAI Indonesia interested, also uses AE2100. N295 is similar to Dornier 228

o   Upgrading Russian IL114 is heavy. Russian AN32 is military. AN132 is civil version of AN32 with PW127 engine

o   Canada Bombardier is folding up

o   PW127 has hot/high capability

o   ATR42 has less runway roll. Modified specially for Delhi Kullu flight. Runway is short because of Beas river.

      Clean sheet design of engine will take 7-8 years

      125 Jaguar aircrafts are there in India

      Gas turbine core IP not possible to transfer to India

      Buy core engine for abroad. Do phase by phase indigenization of components.

      IIP Dehradun setting up refinery for SAF in Mangalore

      C929 is Chinese civil engine

      PW127XT has single lever operation

      GTF geared turbo fan giving lot of trouble for Pratt Whitney

      A380 has Trent 900

      A320 Neo one of the options got fully grounded due to oil seal leakage

      737 MAX grounded for 1 year due to MCAS

      Bombardier CRJ overshot time line

      Embraer has stopped 90 seater work.

 

Pulseview not opening, just opens, flashes and closes - Solution.

 Actual driver software and user interface software I used for the Hantexk 6022BL is the OEM supplied one and not SIGROK/SAELAE. This is because both SIGROK/SAELAE install their own windows USB drivers using ZADIG and stop the oscilloscope functionality of the 6022BL.

So acquire the logic data with OEM supplied Hantek software and save the output as CSV file. Be sure you have installed Hantek software in non OS drive so that it can write the required setup file during closing of the software after each use.

Then open the saved CSV file in the pulseview software for decoding. It will open after installation first time. But after viewing the CSV file and closing pulseview, when you attempt to open it the second time, pulseview briefly opens, GUI window flashes and closes. This is because it is searching for the compatible USB device, which is not there in the PC. So, as solution, to start the pulse view to open the CSV file, go to the command window in the pulseview installation directory and use pulseview.exe -c command to start pulseview. This will make   pulseview forget the past settings and make a fresh open. Good luck.

Interaction with an engine OEM

 During interaction with an engine OEM on 2nd may 2023, I saw that the specifications given by engine OEM are at ISA+44F. So I mentally converted it into ISA+6 degrees, as 32 F is 0 degrees for us and any increment after 32F is roughly half of it in Celsius scale. So my question was if specification is at ISA+6 degrees, then the engine performance will be much lower when run at Indian condition, which is ISA + 25 degree Celsius, which is 40 degree Celsius. ISA is at 15 degree Celsius.

The reply given was that ISA is at 59F for US people, so I should convert the full value to Celsius. So, they should have specified that ISA is defined in Fahrenheit for US people and then I should have converted the full value (59F+44F = 103F = 39C) to Celsius, which is close to 40 degree Celsius that Indians use. Metric system is better than US system of units.

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".
   

#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. 
   
   
   
6. 

   
   
   
7. Rotax 447 40HP is 29 kg in weight
8. 

   
   
   

#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

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