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Search: Posts Made By: niffi
Showing results 1 to 17 of 17
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Forum: RC Jets
05-19-2014, 01:51 PM
Replies: 68
Views: 83,597
Posted By niffi

Thanks a lot! :) A first Impression of the...

Thanks a lot! :)
A first Impression of the Test-Stand, the Engine "hangs" on a grinded round bar so that it can swing and move forward for the Measurement of Vibration and Thrust.

...
Forum: RC Jets
05-15-2014, 03:48 PM
Replies: 68
Views: 83,597
Posted By niffi

Another Video with a little Compressor Surge @...

Another Video with a little Compressor Surge @ 0:17, but its not dangerous. The Engine got some internal Improvements.

https://www.youtube.com/watch?v=pXDNMv9t990 (Friendly Neighborhood.. :D)
Forum: RC Jets
02-28-2014, 12:32 PM
Replies: 68
Views: 83,597
Posted By niffi

Thanks! The Stators are controlled just...

Thanks!


The Stators are controlled just by RPM, a Microcontroller will drive three Servos to set the correct Blade Angle.

One key Problem seems to be solved - as i already wrote, the...
Forum: RC Jets
02-20-2014, 03:27 PM
Replies: 68
Views: 83,597
Posted By niffi

The E-Starter is finished now. The Motor is way...

The E-Starter is finished now. The Motor is way to small for the Engine, but it has to fit into the Nosecone... So there is a temperature Sensor fitted onto the Motor
and it gives out a Warning at...
Forum: RC Jets
02-20-2014, 12:44 AM
Replies: 68
Views: 83,597
Posted By niffi

First of all, many thanks for the nice words! ...

First of all, many thanks for the nice words!





No, that is not correct. All six Stages have twisted Blades and i am convinced, that it is quite important. As you already said, you need...
Forum: RC Jets
02-17-2014, 12:52 PM
Replies: 68
Views: 83,597
Posted By niffi

Thank you! Yes, the next Step is a Test Stand...

Thank you!
Yes, the next Step is a Test Stand with a lot of Sensors. I will show you the Instrumentation in a few days, its not finished yet.
(But be aware, its in german Language :o )
The major...
Forum: RC Jets
02-16-2014, 02:54 PM
Replies: 68
Views: 83,597
Posted By niffi

Close? To self sustaining? Believe me, the Engine...

Close? To self sustaining? Believe me, the Engine really works!

http://www.youtube.com/watch?v=s8Oya2lLGLk



Yes, the development goes on..
But i don`t think, that an axial Microjet can...
Forum: RC Jets
02-14-2014, 02:17 PM
Replies: 68
Views: 83,597
Posted By niffi

The Turbine Stage after several Test Runs... ...

The Turbine Stage after several Test Runs...
http://www.rcuniverse.com/forum/attachment.php?attachmentid=1968525
Forum: RC Jets
02-11-2014, 04:33 PM
Replies: 68
Views: 83,597
Posted By niffi

Mmh, sorry for my bad English.. Rotating Stall is...

Mmh, sorry for my bad English.. Rotating Stall is less dangerous than a complete Stall... (because i wrote "or even")
Forum: RC Jets
02-11-2014, 07:46 AM
Replies: 68
Views: 83,597
Posted By niffi

What do you mean by CP? Compression? Then the...

What do you mean by CP? Compression? Then the Answer is yes, because you need very high Turbine temperatures to have an advantage.
Otherwise, the fuel consumtion will rise or the Engine will not...
Forum: RC Jets
02-11-2014, 07:39 AM
Replies: 68
Views: 83,597
Posted By niffi

Many Thanks! The Diameter of my Engine is...

Many Thanks!
The Diameter of my Engine is 100mm, but i dont know the Diameter of a 200N radial Engine...maybe 150mm?!

Yes, i think so. But the aerodynamic load of the Blades will be much higher,...
Forum: RC Jets
02-10-2014, 01:23 PM
Replies: 68
Views: 83,597
Posted By niffi

Another, very short Video:...

Another, very short Video: http://www.youtube.com/watch?v=s8Oya2lLGLk
Forum: RC Jets
02-10-2014, 11:15 AM
Replies: 68
Views: 83,597
Posted By niffi

Thanks! Yes, thats the pure way to start a...

Thanks! Yes, thats the pure way to start a Jetengine.. :)
The Engine will be controlled and ignited by a Microcontroller and several Sensors, the whole System is already finished but i have to...
Forum: RC Jets
02-10-2014, 09:22 AM
Replies: 68
Views: 83,597
Posted By niffi

The last Parts were finished and the engine was...

The last Parts were finished and the engine was ready to be tested.. in an old, rusty bench vise :o I can not give you any informations about the Pressure, Rpm, EGT etc. because there are no Sensors...
Forum: RC Jets
10-09-2013, 10:38 AM
Replies: 68
Views: 83,597
Posted By niffi

Thank you! Yes, the Engine is a lot heavier...

Thank you!
Yes, the Engine is a lot heavier than a comparable one with radial Compressor. Thats mainly due to the variable Stators. The final Version will have no variable Stators and the whole...
Forum: RC Jets
10-07-2013, 03:41 PM
Replies: 68
Views: 83,597
Posted By niffi

Thank you! Projected Thrust is 200Newton. And...

Thank you! Projected Thrust is 200Newton. And with less Fuel Consumption compared to Radial Ones. Thats the Goal!
Another Picture: The Turbine-Blisk, made out of temperature resitant Alloy
...
Forum: RC Jets
10-07-2013, 01:27 PM
Replies: 68
Views: 83,597
Posted By niffi

Axial-Flow Turbojet

Hello!
I am from Germany and i would like to show you my axial flow Micro Jetengine. The Engine has a 6 Stage Compressor with variable Stator Vanes for the first three Stages. They will be turned by...
Showing results 1 to 17 of 17


 
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