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Old Aug 18, 2010, 11:19 AM
fairviewrcflier.webs.com
Fairview Heights IL
Joined Mar 2010
66 Posts
My sea dart

So I made this last night.... total pain in the ass, LOL.... I need to put my power pack into it (Microjet V3, 1600 mah 3S battery, 20A ESC, Dx6i RX) normally I paint planes and make them pretty but I want to maiden this plane first because I am skeptical of its preformance on Air, Land and Sea (hahaha) anyways, here are some build pictures.
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Old Aug 18, 2010, 11:31 AM
Scott Quinn
siddus's Avatar
Nottingham UK
Joined Oct 2006
249 Posts
No need to be sceptical, build it to plan / not over heavy and ensure its ballanced atleast on or in front of the recommended CG and it will fly very well . . . (This plane does seem to be CG critical, otherwise it tends have weird tendancies in my experience)

I have over 50 flights on mine, 90% of them on/off water . . . I enjoy flying it and it has ensured I have continued flying on a couple of occasions at various water meets.

Siddus74
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Old Aug 18, 2010, 12:03 PM
fairviewrcflier.webs.com
Fairview Heights IL
Joined Mar 2010
66 Posts
When I set this on concrete it tips to the right. I probably need to adjust the plank thingy under the plane so the plane is centered right? Also, I have ensured the front portion is water tight which I assume is what needs to be done.

I have read something about up trip for the elevon setup. What was it like 8mms? Where is this measured?
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Old Aug 18, 2010, 12:13 PM
Scott Quinn
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Nottingham UK
Joined Oct 2006
249 Posts
I posted some pics previously that showed the 'reflex' from the rear view . . . check them out . . . (Its only a guide and trim changes anyway when you use different cells)

Siddus74
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Old Aug 18, 2010, 12:55 PM
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Jürgen Be's Avatar
near Stuttgart, Germany
Joined Oct 2008
349 Posts
Marcel

when I first seen your design and vid`s, the Seadart went to the "to do list"
You did a very nice job and thanks for sharing the plans.
My first thoughts were, that the prop in slot design is a bit noisy and maybe I will get some problems, when I take the plane to the small lake around here.
So the plans went to the "briefcase" `till last week............................and I played around with some 3mm Depron...................

Do you have any idea, what can be seen on the following photos?...........


Jürgen
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Old Aug 18, 2010, 01:01 PM
Scott Quinn
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Nottingham UK
Joined Oct 2006
249 Posts
Nice fabrication, where the battery going to go?

Siddus.
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Old Aug 18, 2010, 01:14 PM
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Jürgen Be's Avatar
near Stuttgart, Germany
Joined Oct 2008
349 Posts
Nice question
I will try the fit of the EDF, then take a closer look, how to get the CG...........
Maybe I make a hatch in front of the inlets.

Jürgen
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Old Aug 18, 2010, 01:17 PM
fairviewrcflier.webs.com
Fairview Heights IL
Joined Mar 2010
66 Posts
Quote:
Originally Posted by Jürgen Be View Post
Nice question
I will try the fit of the EDF, then take a closer look, how to get the CG...........
Maybe I make a hatch in front of the inlets.

Jürgen
Very nice... can you tell me your configuration set up (EDF type, ESC, battery, etc...)
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Old Aug 18, 2010, 02:05 PM
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Jürgen Be's Avatar
near Stuttgart, Germany
Joined Oct 2008
349 Posts
I will try an Alfa 60/25 Fan with a Mega 16/7/4 motor, on a 3 cell 1350mAh 20C, ECS should be 25-30A. I think I can get up to 500g thrust.
I don`t know, if it will work on the Seadart, but I want to try it out.

Jürgen
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Old Aug 18, 2010, 02:13 PM
fairviewrcflier.webs.com
Fairview Heights IL
Joined Mar 2010
66 Posts
If it does I wouldn't expect to get any flight time out of it... a friend of mine said its a battery sucker
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Old Aug 18, 2010, 02:21 PM
master of the universe
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USA, CA, Novato
Joined Jul 2008
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Quote:
Originally Posted by siddus View Post
No need to be sceptical, build it to plan / not over heavy and ensure its ballanced atleast on or in front of the recommended CG and it will fly very well . . . (This plane does seem to be CG critical, otherwise it tends have weird tendancies in my experience)

I have over 50 flights on mine, 90% of them on/off water . . . I enjoy flying it and it has ensured I have continued flying on a couple of occasions at various water meets.

Siddus74
Second that. I probably have a good 30 flights on mine. Watch the rates and CG on your maiden. mine is pretty heavy but is a great flier. I'm thinking of upgrading the motor.
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Old Aug 18, 2010, 02:24 PM
fairviewrcflier.webs.com
Fairview Heights IL
Joined Mar 2010
66 Posts
What motor are you using? Whats your set up
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Old Aug 18, 2010, 02:26 PM
master of the universe
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USA, CA, Novato
Joined Jul 2008
3,076 Posts
im currently using a rct 2200kv / 30A ESC
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Old Aug 18, 2010, 02:45 PM
Pusher jets rule!
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Mesa, AZ
Joined Jan 2006
17,679 Posts
I'll second that power setup. The Microjet V3 may not be enough for this. Go with the standard 2212-6 2200kv motor, 30A ESC and APC 6X4E prop. RCTimer, RC Hot Deals, Grayson all have them.

Pat
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Old Aug 18, 2010, 03:43 PM
Crazy Foamie Builder
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United States, MD, Lexington Park
Joined Jan 2010
914 Posts
don't see your EDF design working..splitting up the exhaust from the fan is going to rob all of it's power..
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