RE: Great Planes Seawind  
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RE: Great Planes Seawind - 12/14/2007 6:21:35 PM   
jrf


 

Posts: 2368
Joined: 12/30/2001
From: Burbank, CA, USA
Status: offline 		Weight is 19.63 oz. with muffler.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXSZW5&P=ML

Jim

(in reply to MinnFlyer)
       Post #: 926

RE: Great Planes Seawind - 12/29/2007 11:32:28 AM   
Vicster


 

Posts: 143
Joined: 6/24/2002
From: LHC, AZ, USA
Status: offline 		Hi- Has anyone converted the Seawind ( GP ) to electric power and flown it with success?
If so, please list the motor and battery specs.
I have one that I converted to electric.
Thanks in advance,
Vicster

(in reply to jrf)
       Post #: 927

RE: Great Planes Seawind - 12/30/2007 5:19:00 AM   
billdor


 

Posts: 21
Joined: 1/14/2002
From: Calgary, AB, CANADA
Status: offline 		I have just finished building the GP Seawind. I have read most of this thread and appreciate all of the help it afforded me.

This kit came well packaged and with no damage. This is pretty much my first sea plane although I did have a trainer type on floats for a short time years ago. I did not install any gear as I will save it for use on water exclusivly. I took a lot of advice from you guys while building. I did not even install the totally useless self bailer your right the ball does not float but even if it did, the tube would have to be more vertical for it to have a chance. I am trying to make everything waterproof, will make silicone gaskets for wing roots and canopy. I glued the gear doors in permanently with epoxy and microballoons and used the same treatment for the wing tips.

One thing that I may be able to help some of you with is the switch. For sometime now I have been using a Deans ultra plug in place of a switch. To mount it you put a small 1" square piece of lite ply as a backer in any convenient location, carve a hole in it to tightly fit the female half of the plug then glue it in solidly flush with the surface of the model. Wire it by simply cutting the hot wire from the battery and soldering the two cut ends to the terminals of the plug, a blob of silicone acts as a strain relief to ensure the wires do not break at the solder joint. you can then solder a jumper to the terminals of the male half and keep it in a convenient location. To turn the power on simply put in the plug, and after your flight just pull the plug and put it in your pocket ready for your next flight. to incorporate a charge plug simply solder it in between the Deans plug and the battery.
I have not suffered from a switch failure since I started using this method and because the pins are moulded into the plastic body of the switch it is completly waterproof.

_____________________________

RC Bill
He who dies with the most toys wins.

(in reply to Vicster)
       Post #: 928

RE: Great Planes Seawind - 12/30/2007 4:42:56 PM   
jrf


 

Posts: 2368
Joined: 12/30/2001
From: Burbank, CA, USA
Status: offline
quote:

I have not suffered from a switch failure since I started using this method and because the pins are moulded into the plastic body of the switch it is completly waterproof.


I understand that it will not allow water to pass into the fuselage, but what about water getting between the pins and shorting out the "switch"?

Don't be too fanatical about sealing out every bit of water. A small amount of leakage is not going to hurt anything. The safest way to do the switch is inside the fuselage with an actuating pushrod leading out through the side.

Jim

(in reply to billdor)
       Post #: 929

RE: Great Planes Seawind - 12/31/2007 1:53:45 AM   
greggK


 

Posts: 116
Joined: 7/1/2003
From: Annapolis, MD, USA
Status: offline 		Electric Seawind??? Any examples? Thanks Happy New Year

(in reply to jrf)
       Post #: 930

RE: Great Planes Seawind - 12/31/2007 4:31:40 AM   
Vicster


 

Posts: 143
Joined: 6/24/2002
From: LHC, AZ, USA
Status: offline 		I ask again ( see previous post ) does any one have a Seawind converted to electric?
I have one and it flies very good. I had another that had a Saito 100 4-stroke, and the electric flys better. It has more "useable" power.
Here are a few pictures.
As to the post about the "arming" switch. I have one and I mounted it INSIDE the cabin area. I remove the canopy ( one screw ) turn on the radio switch and then "arm" the motor. Replace the canopy and its ready to fly. Never had had any problem, and it won't get wet.

Thanks,
Vicster

PS- by moving the batteries fore or aft, I can achieve the perfect balance!

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< Message edited by Vicster -- 12/31/2007 4:36:33 AM >

(in reply to greggK)
       Post #: 931

RE: Great Planes Seawind - 12/31/2007 8:33:46 PM   
Bob93447


 

Posts: 52
Joined: 9/4/2004
From: Playa del Rey, CA, USA
Status: offline 		Greggk and Vicster,

Two other threads are devoted to conversion of the large seawind to electric 1--"Great Planes Seawind Electric Conversion" by LXG1GO has some interesting videos and 2- "Seawind Conversion" by 76.ta is another thread devoted to the same subject. There are lots of advantages to the electric conversion, not the least being the ability to get the proper CG by moving the batteries and not adding extra weight. In addition, removing most of the weight from the engine pylon means that the aircraft does not have the tendency to dig in wingtips nearly so badly. The downside is that the cg has a lot to do with porpoising on takeoff, so getting it right is critical.

Bob
93447

(in reply to greggK)
       Post #: 932

RE: Great Planes Seawind - 1/4/2008 5:06:53 PM   
joshua2372


 

Posts: 1
Joined: 11/29/2007
From: Naples, FL, USA
Status: offline 		Where can I find that curcuit board that you connected the two batteries to. I am going to run two packs in series and I need a converter like that.

(in reply to Vicster)
       Post #: 933

RE: Great Planes Seawind - 1/7/2008 7:47:38 PM   
Bob93447


 

Posts: 52
Joined: 9/4/2004
From: Playa del Rey, CA, USA
Status: offline 		Hobby-Lobby and Tower

(in reply to joshua2372)
       Post #: 934

RE: Great Planes Seawind - 1/15/2008 4:01:47 PM   
greggK


 

Posts: 116
Joined: 7/1/2003
From: Annapolis, MD, USA
Status: offline 		Hey Guys, Im starting to get this project on the road and I was wondering about the servos... Im a JR guy, could you tell me the size of the servos I need in/on the various control surfaces? The tail ones seem to be smaller then Std. Do you all recommend Corrosion X the heck out of them in and out...? Thanks

(in reply to Bob93447)
       Post #: 935

RE: Great Planes Seawind - 1/15/2008 4:16:20 PM   
MinnFlyer



Posts: 19374
Joined: 4/22/2002
From: Willmar, MN, USA
Status: offline 		The three tail servos are minis, but they are hi-torque, metal gear minis. You don't want to go cheap here.

I didn't do anything special in the way of waterproofing

_____________________________

Mike B.
AMA# 42400 www.gettingairborne.com

"Those are my principles. If you don't like them, I have others." - Groucho Marx

(in reply to greggK)
       Post #: 936

RE: Great Planes Seawind - 1/15/2008 4:48:19 PM   
HUNTERANDJEFF


 

Posts: 532
Joined: 7/25/2007
From: E. Wenatchee, WA, USA
Status: offline 		Greggk, Minnflyer is right. you do not want to go cheap there. Use the best mini servos that you can afford. My advice would be to find a servo that is water resistant and then waterproof the heck out of it. On my seawind, I used the cirrus metal geared high torque mini servos and 4 of them failed me. one of them stripped out and the others got moisture in them and the would smoke and sizzle untill the cases melted on them. I had a very bad experience with these servos and my plane is toast now. I am seriously considering buying another one but not untill great planes decides to rebuild the engine pod's frame structure. If they do, I will be the first in line to purchase a new one. There is no prettier plane in the sky than this one.
Jeff

_____________________________

JeffThe only yard sales I go to is when I pick up my plane from all over the runway!!!!
Revver bro #191

(in reply to MinnFlyer)
       Post #: 937

RE: Great Planes Seawind - 1/18/2008 6:13:54 AM   
finchase4



Posts: 51
Joined: 11/23/2007
From: Hudson, FL, USA
Status: offline 		Hi Everyone:

Just received my GP Seawind yesterday and have started assembly, so truely a "new guy" here. After having read all the posts in this forum I have certainly learned a lot about this plane, and my thanks to those who have posted here..

I have a question.. After making several gentle, but unsuccessful attempts at putting the fuel tank in the specified place, it appears as though its too large for the opening. This is the suppled 420cc tank as suppled with the kit..

Does anyone have any suggestons here? or is it a brute force issue..

Thanks to all for your help..

Rich

(in reply to HUNTERANDJEFF)
       Post #: 938

RE: Great Planes Seawind - 1/18/2008 12:24:24 PM   
MinnFlyer