RCU Forums - Search Results
RCU Forums

Go Back  RCU Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Community
Calendar
Today's Posts
Search
Vendor Directory
Notices
 
Page 1 of 20
1
2
3
11
Last »
Search: Posts Made By: Turbotronic
Showing results 1 to 25 of 500
Search took 0.38 seconds.
Forum: RC Jets
08-18-2022, 07:07 AM
Replies: 16
Views: 2,246
Posted By Turbotronic

Sorry no pic but its really simple, imagine small...

Sorry no pic but its really simple, imagine small fuel tank with fuel pickup at low point and air input at high point. I also added an anti siphon valve to the vent,
but you would need to bypass it...
Forum: RC Jets
08-17-2022, 02:23 AM
Replies: 16
Views: 2,246
Posted By Turbotronic

I have done this for many years, it has the...

I have done this for many years, it has the advantage of being able to see the tank filling without spilling fuel all over the place. In some cases it also eliminates the stopper.
The fuel left in...
Forum: RC Jets
07-12-2022, 01:54 AM
Replies: 10
Views: 1,698
Posted By Turbotronic

https://cimg2.ibsrv.net/gimg/www.rcuniverse.com-vb...

https://cimg2.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1231x928/phantom_73fc60a04a8b9eb6d4d9762f148a2119370cf775.png
Felt inspired to resume work on the CAD for the F4. Should be pretty accurate...
Forum: RC Jets
07-09-2022, 03:31 AM
Replies: 4
Views: 948
Posted By Turbotronic

https://www.youtube.com/watch?v=6v7fGzV32VY Lab...

https://www.youtube.com/watch?v=6v7fGzV32VY
Lab test of engine used in Video.
There is no GSU. Any Web enabled device (iPhone, Android, Laptop or Tablet can be used.
The ECU has a build in display...
Forum: RC Jets
07-06-2022, 07:47 AM
Replies: 4
Views: 948
Posted By Turbotronic

Yes, but then there is a extensive certification...

Yes, but then there is a extensive certification process when doing powered takeoffs, like any other aircraft...
Andre
Forum: RC Jets
07-06-2022, 12:58 AM
Replies: 4
Views: 948
Posted By Turbotronic

Smile Jet Glider 250kph level cruise

https://www.instagram.com/p/Cene-kKDYeA/
Climb rate 2M/s at 170Kph, some serious power.
Sub 10 sec starts, even at altitude. This was a first test at altitude.
:cool:
Forum: RC Jets
06-28-2022, 02:06 AM
Replies: 10
Views: 1,698
Posted By Turbotronic

https://www.dropbox.com/s/y4s6i5b46cyum6u/F4%20For...

https://www.dropbox.com/s/y4s6i5b46cyum6u/F4%20Formers%20Andres%20loft%20v12%20v4.f3d?dl=0
I did a complete model from MD drawings, however it was deleted inadvertently after 6 months work. This is...
Forum: RC Jets
04-06-2022, 07:19 AM
Replies: 18
Views: 2,311
Posted By Turbotronic

Maybe not the right video, but this engine (460N)...

Maybe not the right video, but this engine (460N) uses a controller I designed and coded. It has an internal web based interface. It uses a brush-less motor but it is sensored, allowing startup times...
Forum: RC Jets
04-06-2022, 06:56 AM
Replies: 18
Views: 2,311
Posted By Turbotronic

Listening again it certainly sounds that there is...

Listening again it certainly sounds that there is some turbine rub shortly after ignition and no acceleration. Should that happen and you don't immediately douse it with a CO2 extinguisher the flame...
Forum: RC Jets
04-06-2022, 02:29 AM
Replies: 18
Views: 2,311
Posted By Turbotronic

That is a shame, nice looking Eurosport too!

That is a shame, nice looking Eurosport too!
Forum: RC Jets
01-06-2022, 12:13 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

Awesome! I have some 3mm soft copper tubing, just...

Awesome! I have some 3mm soft copper tubing, just need a bigger torroid to complete...
Forum: RC Jets
01-02-2022, 09:07 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

Thumbs up That is good to know! Will have to try myself.

That is good to know! Will have to try myself.
Forum: RC Jets
12-14-2021, 01:12 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

https://www.youtube.com/watch?v=jLRgDZeYQ-M ...

https://www.youtube.com/watch?v=jLRgDZeYQ-M
Thanx, a good find! Going to try this for sure.
Forum: RC Jets
12-13-2021, 09:04 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

Could not get it to heat large pieces of brass...

Could not get it to heat large pieces of brass either. The heat absorbed is related directly to current draw when something is placed within coil. Hardly changes with brass tube and tube not even...
Forum: RC Jets
12-13-2021, 08:06 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

I have that exact same unit, used it with 9s...

I have that exact same unit, used it with 9s life. I eagerly await positive feedback on your efforts!
Forum: RC Jets
12-12-2021, 11:59 PM
Replies: 118
Views: 16,546
Posted By Turbotronic

Never tried brass but with SS needles I would say...

Never tried brass but with SS needles I would say use the thicker wall types, it will make any bending easier. Using some sort of shield to keep direct flame away from needle could help. If you get...
Forum: RC Jets
12-12-2021, 08:50 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

When using even 56% solder paste you can use a...

When using even 56% solder paste you can use a regular gas torch as plumbers do when soldering copper pipes. Brass melts at a lot lower temp than copper so the solder melt temp is obviously critical....
Forum: RC Jets
11-24-2021, 11:03 PM
Replies: 118
Views: 16,546
Posted By Turbotronic

Some 23 years ago I tested Brass caged GMN...

Some 23 years ago I tested Brass caged GMN bearings provided as a sample. Those had the white ceramic (Alu oxide) balls. At the time balancing was an issue for me and they broke at about 150KRPM....
Forum: RC Jets
11-22-2021, 11:03 PM
Replies: 118
Views: 16,546
Posted By Turbotronic

Yes this is correct, and is one of the downsides...

Yes this is correct, and is one of the downsides of using full compliment bearings. It get a lot worse after an engine run where the engine is not cooled down. It can then lock up quite solidly, to...
Forum: RC Jets
11-06-2021, 02:45 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

No question they will work, GRW is used in...

No question they will work, GRW is used in majority of turbines on the market. The rear only preload of the KJ is not a good idea. You need to preload the front and not have it restricted in movement...
Forum: RC Jets
11-06-2021, 01:57 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

Almost all non-standard configuration bearings...

Almost all non-standard configuration bearings from all manufacturers are subject to MOQ's. I can tel you that GRW also makes similar bearings for a MOQ. The ones we buy for "model use" have never in...
Forum: RC Jets
11-02-2021, 01:27 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

Ceramic Silicon Nitride

Ceramic Silicon Nitride
Forum: RC Jets
10-31-2021, 01:32 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

A few actual facts: Full compliment is not the...

A few actual facts:
Full compliment is not the best option in high rpm applications. We get away with it due to reduced life expectancy.
AMT uses angular contact bearings with machined brass cages....
Forum: RC Jets
10-28-2021, 08:21 AM
Replies: 118
Views: 16,546
Posted By Turbotronic

I share that notion. In small turbines the rear...

I share that notion. In small turbines the rear bearing takes near all the axial load. Bad because it really hot already, good because the overhang and turbine mass do not need as much radial...
Forum: RC Jets
07-03-2021, 02:58 AM
Replies: 13
Views: 5,055
Posted By Turbotronic

The typical model turbine exhaust produces 100KW...

The typical model turbine exhaust produces 100KW plus in waste heat. A downstream turbine or turbines can extract a lot of that energy, typically for a small turbine about 150 deg C per stage x...
Showing results 1 to 25 of 500
 
Page 1 of 20
1
2
3
11
Last »


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.