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GP Patriot 40 Kit Build

Old 01-02-2008, 11:07 PM
  #1  
UkerDuker
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Default GP Patriot 40 Kit Build

I recently purchased a GP Patroit kit (40size) FOR $20. I plan on installing a OS 46AX and fully sheeting the plane. I want to glass everything, but I will wait to see what my build weight is before doing so. I want to build a solid, fast mover. I am debating on changing the elevator into a flying stab(like an F-16), instead of elevator control surfaces.

SO far I have one wing panel completed and I have started on the other. I plan to include retracts.Has anyone built this kit before?
Mike
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Old 01-03-2008, 07:29 AM
  #2  
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Default RE: GP Patriot 40 Kit Build

You will find lots of information on this plane/kit in the extreme speed prop planes forum. I also have actually 2 of these kits just have not gotten to start on one yet. I also have a set of retracts for it and a Jett SJ 50..i can expect about 100mph give or take a couple.
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Old 01-03-2008, 07:59 AM
  #3  
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Default RE: GP Patriot 40 Kit Build

I built one of these kits back in the early 90's. Mine had a O.S. 46SF with a mac's tuned pipe.

Very easy build and a great flying airplane.
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Old 01-03-2008, 08:03 AM
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Default RE: GP Patriot 40 Kit Build

Ok, thanks Burgh, I'll post on that forum.

Gunfighter, I bought it with one wing framed up. I started the second wing-half and it seems like nothing wants to line up. The receipt in the box shows it was originally purchased back in 1993. GP has probably improved since then.

Mike
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Old 01-03-2008, 08:20 AM
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Default RE: GP Patriot 40 Kit Build

Mike,
1993 sounds about right. I think they discontinued it in the late 90's.

I was surprised to see a post last week showing that Graves Hobby in Florida I think, still having some kits in stock.

Post some pictures of your build and I'm sure someone here can advise you with any problems you might have.

I really had fun with this plane, lasted around 500 flights and I finally got tired of it and hung it in the garage, 2 years ago I sadly had to get rid of it due to space.
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Old 01-03-2008, 08:30 AM
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Default RE: GP Patriot 40 Kit Build

Gunfighter,
How did you cover yours? Did you use any fiberglass outside of the center wing section? Would it be worth glassing the entire project?

Mike
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Old 01-03-2008, 10:59 AM
  #7  
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Default RE: GP Patriot 40 Kit Build

Mike,
I covered mine in Monocote and did'nt glass anything. I think I ended up about 5.5 lbs

If I remember the wing was mostly sheeted. I also had the 3 gear mechanical retracts, the cheap Hobbico's. I used a retract servo in the wing and used a standard servo mounted in the rear with the others and ran a Sullivan ny-rod up front for the nose gear.

Here's a picture, sorry it's a little blurry, it's out of my photo album.
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Old 01-08-2008, 11:17 PM
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Default RE: GP Patriot 40 Kit Build

I got my wing halves assembled. I need to get my Hobbico gear soon. Is it possible to connect the wing halves then install the gear? I think I will fully sheet my wings. I hate the way GP only partially sheets the wing. I want to maximize my strength because I plan to push this plane to its limits. I want a fast, strong rocket. I will probably start the fuselage until I get my retracts.

I will post some picture when I find my camera. I swear, that thing has legs. I can never find it when I need it.

Mike
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Old 01-13-2008, 08:30 PM
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Default RE: GP Patriot 40 Kit Build

I finally found my camera. I have the wing mostly framed up. I need to install my retracts before I finish sheeting. I also got the majority of the main fuslage done. I am having to fabricate a new needle valve bracket for my OS 46AX. The current one interferes with the mounting of the engine due to the small mount size. Does any one have build pictures of the aileron and wing retract servo installation. I'm trying to decide whether I want to modify the stock design.

Here are a few build pictures.
Mike
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Old 01-14-2008, 06:03 AM
  #10  
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Default RE: GP Patriot 40 Kit Build

Uker,
Looks good! Keep the pictures coming.
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Old 01-14-2008, 08:19 AM
  #11  
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Default RE: GP Patriot 40 Kit Build

Thanks Gunfighter....It's slowly coming together.

Anyone out there that has the fuselage plan sheet? If you do, could you take a detail picture(s) of it. My kit did not have this sheet.

Many of my upcoming steps refer me to the plan sheet.[X(] Kind of difficult to refer to if I don't have it. I'm wondering about the RX installation and the tail push rods setups.

Any help is appreciated.
Mike
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Old 01-14-2008, 08:15 PM
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Default RE: GP Patriot 40 Kit Build

ORIGINAL: UkerDuker



Anyone out there that has the fuselage plan sheet? If you do, could you take a detail picture(s) of it. My kit did not have this sheet.

Mike
P.M. me your E-mail address I have detailed photos of that page. Probally in all 11 photos of just the fuse plan. I have a New in the box kit that
I bought of of RCU here about 2 weeks ago. I hope to start it some time next month. So keep up the good work on the build.
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Old 01-14-2008, 11:16 PM
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Default RE: GP Patriot 40 Kit Build

I was able to finish the top side of the wing. I sheeted alittle more than what the plans call for. I'm hoping to gain some wing strength. There is a minor difference in the top sheeting only because I bought the kit with one wing half built. I will be installing a filler piece to match the top sheeting. I'm waiting for my LHS to get some retract servos in then I can finish up with last servo install. So far my build is sitting at 32oz (2lbs). This includes the wing and the fuselage and 5 servos installed. I'm trying to build this as strong and light as possible. So far, so good.

More to follow soon....

Mike
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Old 01-15-2008, 07:09 AM
  #14  
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Default RE: GP Patriot 40 Kit Build

Uker,
If the sheeting difference is at the center I would'nt worry about it, it will be covered by the fuse.
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Old 01-18-2008, 11:37 PM
  #15  
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Default RE: GP Patriot 40 Kit Build

I got the wing basically built. I installed the gear and the retract servo. I built my own retract mount because I hated the way the instructions told you to do it. I mounted the servo vertically instead of along wing rib#1. I opted to put individual aileron servos in for more control. I fabricated mounts between wing rib 5 & 6. I need to install the wing tips and I'm ready to cover.

I can now move back to fuse for wing mounting and installing the tail fins.

Mike
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Old 01-19-2008, 07:30 AM
  #16  
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Default RE: GP Patriot 40 Kit Build

Uker,
I see your moving right along. The fuse is fun, lots of plumbing going up front from the rear, and it starts to get tight up in the nose.

Are you going to put a tuned pipe on the 46?
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Old 01-19-2008, 10:42 AM
  #17  
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Default RE: GP Patriot 40 Kit Build

Gunfighter,

I have a Macs tuned pipe (not the fixed black one), but I'm not sure if I will install it. I'm currenty rebuilding my OS-50SX. I might opt to install this engine along with the tuned pipe. Honestly, I'm not sure yet.

Mike
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Old 01-20-2008, 12:52 AM
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Default RE: GP Patriot 40 Kit Build

The wing is done and ready for covering. I finished shaping the wingtips and I fiberglassed the center fuselage. I installed the ailerons and cut the hinges.

The fuselage got a good portion of the control linkages installed. I installed the nose gear. I also installed the throttle and steering controls. I just need to bend my wire for the nose retract.

Tomorrow I should be ready to start the tail fins. Here are the progress pics so far.
Mike
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Old 01-20-2008, 09:00 AM
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Default RE: GP Patriot 40 Kit Build

Uker,
The 50 SX should be a great fit for the plane, and with a pipe too. Go for it!

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Old 01-20-2008, 10:43 PM
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Default RE: GP Patriot 40 Kit Build

I got alot of building done today. I got the wing mounted, the hoizontal stab mounted and more of the fuselage sheeting done. I installed the engine (OS46AX for now). I also finished the gear cut out around the nose retract/wheel. I fuel-proofed the tank area and the recessed area where my nose gear retracts. The wing and stab are perfectly in alignment. The nose rides alittle high because of the wheel I selected, but I'm happy with it. Here are some of my progress pictures...

Mike
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Old 01-21-2008, 07:17 PM
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Default RE: GP Patriot 40 Kit Build

Looking good so far.. I kinda like the nose a little bit high.. On my F-16 I put the same size wheel on the nose that are on the mains. An I also raised
the mounting blocks 1/2" so the nose is high. It helps on the sod grass we fly off of. Have you started to think about a color scheme yet?
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Old 01-21-2008, 08:03 PM
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Default RE: GP Patriot 40 Kit Build

Looks good so far. I have been flying a Patriot for a few years now. It is a great airplane but It does want to get nose heavy so be careful with that. The speed isn't as fast as you wouild think but still slightly faster than an Ultra Stick. The plane is very rugged and will hold up to rough landing all day long. I had an OS 50sx on mine to start. Now it is flying with a 46 Thunder Tiger. Both engines are about identical in power with Tower muffler. I used the 9X7 to start but found the 10X6 to pull it better vertical and just as fast. I still have two of these kits and want to try lengthing one in the rear and useing a 90 size motor. For now I will just enjoy watching you build yours.
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Old 01-21-2008, 10:10 PM
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Default RE: GP Patriot 40 Kit Build

buzz,
there is no way you will get a .90 in this kit, even if you enlarge it. I would go with the Patriot XL for a .90-size engine. So far the build has had a few challenges, but nothing that was too difficult. I'm working out the elevator and rudder control rods now. I dont have the fuselage plan sheet, so this is a trial & error process. Once I get this done, I should be ready to finish the rudder install and the upper fuselage area.

I have been toying with ideas to best cover this plane. I'm still not sure what scheme I go with. My last plane had a black, chrome and red covering scheme. I am leaning towards a grey/silver base color with some distinct top/bottom color markings. Honestly, I dont know yet. I still have alot of building to do.

I have to redo my ailerons. I'm not happy with the way they turned out. They are very flimsy. I might glass them to increase the strength.

Mike
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Old 01-22-2008, 05:25 PM
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Default RE: GP Patriot 40 Kit Build


ORIGINAL: buzzingb

The speed isn't as fast as you wouild think but still slightly faster than an Ultra Stick.
As far as speed goes it depends on what you want to spend.... $$$$$$$ = speed .... In the extreme speed prop planes forum there
is a thread with a patriot 40 that hit 170 mph. http://www.rcuniverse.com/forum/m_6693939/tm.htm
A peson that I fly with has a YS 60 with a pipe on his and his was clocked on radar at 151mph. http://www.rcuniverse.com/forum/m_6617477/tm.htm
So it all depends on what you want ,how fast you wanna go, and how much you are willing to spend to get there.
Good luck and keep up the good work.
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Old 01-24-2008, 11:14 AM
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Default RE: GP Patriot 40 Kit Build

The 60 plus size engines that will rev-up seem to be able to get the Patriot 40 to the range that it flies best at (fast). The 46-55 sport engines won't give it enough speed unless a tuned pipe is used and even then it is not going to move real fast. I want the 150+ mph range but as someone just mentioned, I can't afford it right now. The 90 size engines aren't any larger or heavier than the 60 size that someone mentioned. The 60/90 engine will require many modifications such as, they will need extra fuel tank above wing with pluming and mods to fuse to compensate.
The Patriot just doesn't fly that well below 100mph.
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