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Search: Posts Made By: E.C.
Showing results 1 to 25 of 37
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Forum: RC Jets
11-02-2005, 04:34 PM
Replies: 1
Views: 828
Posted By E.C.

twin jet video

Nice video..... not mine unfortunately.....

http://www.bird-man.com/?n=windtunnel&nose=6

What kind of engines do you guys think these are?
Forum: RC Gliders, Sailplanes and Slope Soaring
12-22-2004, 03:18 PM
Replies: 11
Views: 1,871
Posted By E.C.

RE: Glider Towing

I have had this happening too. The problem, like said before, is too much speed for the glider. This one just couldn't fly at at the speed of a powered plane. Single dehedral, 2m span, 1,5 Kg (quite...
Forum: RC Jets
12-22-2004, 01:34 PM
Replies: 19
Views: 21,820
Posted By E.C.

RE: KJ66 - pre tension system for bearings

Hi Hank,

I like having a discussion like this!! Even though we may not (yet) agree, I appreciate your opinion and at least it makes me (and not just me) really think about these things.


...
Forum: RC Jets
12-22-2004, 07:36 AM
Replies: 19
Views: 21,820
Posted By E.C.

RE: KJ66 - pre tension system for bearings

Hi Hank,

I want to thank you for explaning your theory.
However, I do not completely agree with it.
I do agree that the load on the front bearing is reduced, but in my opinion the rear...
Forum: RC Jets
12-21-2004, 01:24 PM
Replies: 25
Views: 13,141
Posted By E.C.

RE: fd3/64 question for turbine builders

The KJ-66 plans I have show an NGV built from sheet and turned parts welded together. Looks like a lot of work to me, but it won't cost much. I also think it will be lighter. The turbine wheel is not...
Forum: RC Jets
12-21-2004, 06:22 AM
Replies: 25
Views: 13,141
Posted By E.C.

RE: fd3/64 question for turbine builders

I only have the first edidion Kamps book, if I remember right he uses a similar turbinewheel as the fd3/64, basically a flat plate with bent blades. I don't know what the later editions use.
Forum: RC Jets
12-20-2004, 07:08 AM
Replies: 19
Views: 21,820
Posted By E.C.

RE: KJ66 - pre tension system for bearings

Hank,

Thanks for your reply. But I am still curious; what exactly goes wrong with the rear pre-tension? What are your experiences?

Regards,
Eelco
Forum: RC Jets
12-19-2004, 02:03 PM
Replies: 24
Views: 2,921
Posted By E.C.

RE: Any turbine builders out there?

Hi Kevin,

The reason Kamps (and everyone else) uses the lefthand threads is because it prevents the nuts from coming loose when the engine runs clockwise. Unless you can find a compressor wheel...
Forum: RC Jets
12-18-2004, 09:12 AM
Replies: 19
Views: 21,820
Posted By E.C.

RE: KJ66 - pre tension system for bearings

OK, now I get it...

And you are right, the airspeed at that point is pretty high...I never realised this until i did a " quick and dirty" calculation based on a massflow of .22 kg/s, pressure...
Forum: RC Jets
12-16-2004, 07:45 AM
Replies: 19
Views: 21,820
Posted By E.C.

RE: KJ66 - pre tension system for bearings

Thanks a lot everyone!! I knew I could count on you, but this is already more than I had hoped for!!

@Christian: What made you decide to make a steel shaft tunnel? The only reason I can think of...
Forum: RC Jets
12-14-2004, 11:41 AM
Replies: 19
Views: 21,820
Posted By E.C.

KJ66 - pre tension system for bearings

Hi there!

I am facing a dilemma with the KJ-66 I am building: continue or start again from scratch with an improved design.

I attached an image so you can see which version of the drawings...
Forum: Forum questions or problems
12-14-2004, 10:40 AM
Replies: 23
Views: 1,850
Posted By E.C.

RE: Picture in post

test
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
12-09-2004, 07:34 AM
Replies: 4
Views: 848
Posted By E.C.

RE: MPX 4000 - sequenced gear & doors

Harry,

Thanks for taking the time to explain this.
You are right about my setup with the restrictors.

Last night, when I almost fell asleep, I suddenly realised how I could solve this...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
12-08-2004, 07:46 AM
Replies: 4
Views: 848
Posted By E.C.

RE: MPX 4000 - sequenced gear & doors

Thanks Harry!
I am sure this works fine if the gears don't move too slowly. However, there is one problem with this method: there is always a delay between the moment the doors are fully opened...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
12-07-2004, 04:09 PM
Replies: 4
Views: 848
Posted By E.C.

MPX 4000 - sequenced gear & doors

I am trying to program my MC 4000. I want the gear doors to open and close automatically when the landing gear is lowered or raised.
Both servo's are connected to the RX on different channels.
I...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
12-05-2004, 05:25 PM
Replies: 3
Views: 1,090
Posted By E.C.

RE: Schulze Alpha 8 FM Receivers

I bought one when I had some trouble with my old JR gear. It has a much better range than my standard JR and MPX receivers, totally no noticable glichtes any more. Also it rejects foreign signals...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
11-26-2004, 12:42 PM
Replies: 12
Views: 1,260
Posted By E.C.

RE: MC4000 heli mixing question.

I am not a heli pilot, nor a HarryC, but I DO have the 4000
(only since 4 days and nights I should add:D:D:D:D....)

As I understand it, the inputs of the standard mixers, even in universal...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
11-25-2004, 01:23 PM
Replies: 4
Views: 847
Posted By E.C.

RE: SERVOS JUMP??????

Hello Jim,

If your receiver is switched on but your transmitter is not, it will pick up any faint signal it recieves, like when you switch on the lights, or your coffee machine. Your servo's...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
11-25-2004, 12:33 PM
Replies: 50
Views: 4,183
Posted By E.C.

RE: Back up RX battery set up?

There is at least one more reason NOT to plug two batteries directly into one receiver.

Two (unconnected) batteries are never the same voltage. At the moment you connect them to each other,...
Forum: RC Jets
09-24-2004, 06:24 AM
Replies: 49
Views: 10,372
Posted By E.C.

RE: Firing rockets from an RC jet?

Cool idea.
I once tried launching small firworks from a .25 little stick. Most of the times it would stay in the launch tube because the plane flew faster then the fireworks could. Only when...
Forum: Beginners
09-23-2004, 10:46 AM
Replies: 13
Views: 948
Posted By E.C.

RE: Help me decide if I need an instructor

If you can fly an overpowered plane like a quicky 500 without problems I would say you can FLY. Even after six years, flying a trainer in calm weather shouldn't be a problem. Just take it easy at...
Forum: RC Gliders, Sailplanes and Slope Soaring
09-13-2004, 11:10 AM
Replies: 15
Views: 4,263
Posted By E.C.

RE: Winglets...Pros and Cons??

Hi,

I don't have any theoretical knowlegde of winglets, but that hasn't stopped me from putting them on several airplanes, both gliders and speed/pattern planes.
I all cases it made the planes...
Forum: RC Jets
08-18-2004, 06:33 AM
Replies: 7
Views: 1,146
Posted By E.C.

RE: 100% Scale F-117

Didn't they also say that about the F-16?
Forum: Glow Engines
08-10-2004, 04:13 PM
Replies: 19
Views: 1,444
Posted By E.C.

It's all about the balls...........

the "C" rating tells something about the clearence between the balls and the rings of the bearing. Not about external size, or if a bearing has a tight fit in the housing.
C1 means very little...
Forum: Beginners
08-06-2004, 05:59 PM
Replies: 7
Views: 1,459
Posted By E.C.

RE: How difficult is it to start inverted engines?

>>>Can someone please explain how the engine is started when it's inverted, and how do you adjust the idle once you have it running?


The same way as usual, connect the glowplug (most...
Showing results 1 to 25 of 37
 
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