July issue sales due to start on June 16
Chinese Aviation Industry
- Thread starter FriedRiceNSpice
- Start date
Aaaargh! Where's my long-waited Y-20 article! (kiddin')
YES, as far as I was informed it was originally planned together with the J-31/21 Report in June but delayed due to another Report of higher priority ... and since the Chinese Aviation Report was already planned for July it was further postponed to August; Sorry, but I hope we will see another flight until then with some fine super-duper high-Resolution Images avilable ....
Deino
what are the advantages/disadvantages of electric aircraft and their pratical use?
Low power consumption and in the long run, is cheaper to run it.
Electric motors and power conditioning equipment are very efficient so need little cooling. The batteries too are efficient and are built into the wings, so cooling is easy. The main problem has been the weight of the batteries. You don't get very far with lead acid batteries, but Li ion batteries are good enough and I just read about Lithium Sulphur batteries that are promising to be even better.
Let's look at a few numbers. Take the energy content of fuel as 9 times that of batteries. Take the energy efficiency of the electrical system as 3 times that of the fueled system, then the weight of the electrical energy system is 3 times that of the fuel system. You then save weight because the electric motor is lighter than an infernal ( joke ) combustion engine and you don't need a fire wall ( but you do need a strong frame in the same place to mount your nose wheel ). You also save weight because the batteries are carried inside the wings and so you save structural weight in your wings while still increasing aspect ratio.
Real numbers will be different but this is all together an interesting development.
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asif iqbal
Lieutenant General
Just picked up my copy of the magazine and it was a very well written piece of work, I like how it was planned and brought in each individual project from fighters, transports, trainer and UAV etc
Also the evolution of J20 and J31, then Y-20 and Y-9 followed by Z-10 and Z-19 attack helos
The attention switched to production models of J10 and J11, with new variants J10B and J-15 and testing of J-15S and J16
A very well structured article Deino well done! The black picture of the Y-20 was brilliant
Also the evolution of J20 and J31, then Y-20 and Y-9 followed by Z-10 and Z-19 attack helos
The attention switched to production models of J10 and J11, with new variants J10B and J-15 and testing of J-15S and J16
A very well structured article Deino well done! The black picture of the Y-20 was brilliant