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Search: Posts Made By: RobKit
Showing results 1 to 18 of 18
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Forum: Seaplanes
06-04-2017, 12:36 PM
Replies: 611
Views: 148,584
Posted By RobKit

Very interesting build approach,, Looking forward...

Very interesting build approach,, Looking forward to the progress,,
What is your plan for the rounded surfaces ? can that be done in the printer ?

Maybe you can make this in to a commersial...
Forum: Seaplanes
06-01-2017, 01:39 AM
Replies: 611
Views: 148,584
Posted By RobKit

Smile Interesting project !! So if I understand it...

Interesting project !!

So if I understand it correctly it is ABS plastic you are using ?? can you share the spec ?
I suppose you are looking for a stronger & lighter NS in the end, hope you will...
Forum: Seaplanes
05-09-2017, 03:16 AM
Replies: 611
Views: 148,584
Posted By RobKit

Thanks, I read it long time ago and finally found...

Thanks, I read it long time ago and finally found it again,,
What happened with the project, did it ever fly ?

I will certanly look in to how to combine materials and make a "hybrid" I would love...
Forum: Seaplanes
05-07-2017, 11:04 AM
Replies: 611
Views: 148,584
Posted By RobKit

Question Yes you are right,, donīt know what I was...

Yes you are right,, donīt know what I was thinking ..
(I was not drunk so canīt use that excuse)

As I said, have to plan this carefully..
Step one is to figure out where the weight "traps" are...
Forum: Seaplanes
05-03-2017, 10:47 AM
Replies: 611
Views: 148,584
Posted By RobKit

That is a considerable altitude for any...

That is a considerable altitude for any aircraft,, And have to be considered for TO and landing performance,
even a 737 have to adjust its TO/landing distance
I have built 3 Polaris (RIP),,have two...
Forum: Seaplanes
05-02-2017, 02:50 PM
Replies: 611
Views: 148,584
Posted By RobKit

Aha ok..Yes I agree it is better to keep the esc...

Aha ok..Yes I agree it is better to keep the esc close to the battery,, Think I read about that model with balsa and foam, yes maybe that is the way forward..
I have experimented a lot with high pwr...
Forum: Seaplanes
04-30-2017, 03:16 PM
Replies: 611
Views: 148,584
Posted By RobKit

Thanks,, that is great info... I am suprsed that...

Thanks,, that is great info... I am suprsed that you are using that small amount of power, but on the other hand you seem to have managed to keep the Northstar very light,,
If you are to move the...
Forum: Seaplanes
04-29-2017, 02:12 AM
Replies: 611
Views: 148,584
Posted By RobKit

Thanks for sharing information of your setup.. I...

Thanks for sharing information of your setup.. I agree that it would be interesting to balance it as close as possible to the step..
Can you tell us what motor/wires/esc you are using ? I suppose...
Forum: Seaplanes
04-18-2017, 02:32 PM
Replies: 611
Views: 148,584
Posted By RobKit

Well, I can see the logic in your approach with...

Well, I can see the logic in your approach with regards to models in general, however,, your asumption is correct. The Northstar drawing/instructions say clearly 2 inches ahead of the step with empty...
Forum: Seaplanes
04-17-2017, 03:21 PM
Replies: 611
Views: 148,584
Posted By RobKit

Yes, that is right,,, it should be balanced empty...

Yes, that is right,,, it should be balanced empty at 2 inches ahead of the step...so when you fill the tank the balance moves one inch closer to the step... anyway I am very interested in your...
Forum: Seaplanes
04-17-2017, 06:19 AM
Replies: 611
Views: 148,584
Posted By RobKit

This is what I mean,, its easy to get...

This is what I mean,, its easy to get confused,,.. if you burn 8oz fuel the tail gets 8oz lighter... the balace point (whatever you have balanced it on) moves back (towards rear) about one inch when...
Forum: Seaplanes
04-17-2017, 03:24 AM
Replies: 611
Views: 148,584
Posted By RobKit

Northstar CG

I know that the topic have been discussed over and over again..:rolleyes:
Sometimes I get confused anyway,,:confused: I started to think about CG after a question to me in this forum about "my best...
Forum: Seaplanes
02-22-2017, 03:03 AM
Replies: 611
Views: 148,584
Posted By RobKit

Thanks for your reply, Confirmed to be...

Thanks for your reply,
Confirmed to be symetrical, I had a conversation with the foam core manufacturer.
So I will just add some carbon tubes, sheet with 1mm balsa and install it on the fuse.. ;-)
Forum: Seaplanes
02-20-2017, 07:22 AM
Replies: 611
Views: 148,584
Posted By RobKit

What I can messure at wing center (thickest part)...

What I can messure at wing center (thickest part) it seems to be symetrical, what is more difficult to see or messure is if the cord changes towards the wing tip..
Forum: Seaplanes
02-20-2017, 06:50 AM
Replies: 611
Views: 148,584
Posted By RobKit

Gentlemen, this might "sound" insane, But I...

Gentlemen, this might "sound" insane, But I ordered a pair of pre-cut foam wing cores and canīt figure out what is up versus down,,, Does anyone know if the wing profile is symetrical, or not ????...
Forum: Seaplanes
02-03-2017, 10:37 AM
Replies: 611
Views: 148,584
Posted By RobKit

Yes it is insane,, messured 180kmh last summer,...

Yes it is insane,, messured 180kmh last summer, and I actually dont go that fast all the time, but I like to fly it vertical and it seams like it can do it for ever and ever..
CG is for me a matter...
Forum: Seaplanes
02-03-2017, 08:18 AM
Replies: 611
Views: 148,584
Posted By RobKit

1988... wow thatīs a long time not playing... It...

1988... wow thatīs a long time not playing... It looks nice,,

I am using a rotorstar motor 3700watt with 6s,, a 10x7 3blade is pulling about 100amps and 16000rpm..
I tried for a while to go with...
Forum: Seaplanes
12-31-2016, 09:10 AM
Replies: 611
Views: 148,584
Posted By RobKit

Hi, I would really like to know about your...

Hi, I would really like to know about your experiance with your fantastic looking NS..
What happened, how did it handle, fly ??
//Rob
Showing results 1 to 18 of 18


 
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