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H9 60 Size P-47 Thunderbolt-Build & Flying

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H9 60 Size P-47 Thunderbolt-Build & Flying

Old 09-27-2005, 10:52 AM
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dasintex
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Default H9 60 Size P-47 Thunderbolt-Build & Flying

New Build thread on this Model; I am interested in getting this model; I have a RCV 91CD 4 Stroke I think will work real nice in this plane; anyone else have this plane yet, post here how the Build is going, what Engine; any problems or shortfalls with the plane. Thanks, Doug.
Old 09-27-2005, 04:26 PM
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Hellcat716
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Default RE: H9 60 Size P-47 Thunderbolt

I do not have this plane, but I have all there other warbird ARF's and I can tell you that a Saito 100 is a perfect match for this plane. I would replace the mechanical retracts with a spring air system and strengthen the firewall. Other than that this plane will be a great flyer.
Old 09-27-2005, 04:46 PM
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Default RE: H9 60 Size P-47 Thunderbolt

i dont have it, but coming from hangar 9 its will be one hell of a plane. you want the best you got the best. i might buy it soon, im thinking about it.
Old 09-29-2005, 11:44 PM
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grassroots
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I just bought one it's a very nice kit and one of the best ARF covering jobs I have seen. Trust me because I have looked at almost every ARF the LHS has received before buying this one. Another nice feature is the cowl looks like a work of art and almost worth the price of the entire kit. There are a few problems with the kit but nothing major. Mine had a slight sunken in warp in the fuselage balsa sheeting on the bottom 1/8! Also the fiberglass belly pan is pretty sad and detracts from the quality of the kit. This is my first retract model I can say that hooking up the retracts is not a plug and play task as the instructions seem to state. Don't be fooled by the fact the retracts are mounted into thinking it's just a matter of hooking them up. I can supply some pictures of my procedure using a Hitech retract servo latter in the post. The quality of the kit is very nice and I think will improve even more once the first batch of rush out the door kits are weeded out. For me I have always liked the P-47 and couldn't wait that long.
Old 09-30-2005, 08:45 AM
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dasintex
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

Flyer2004; What engine you planning on using?
Old 09-30-2005, 09:18 PM
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grassroots
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

Right now I have a Satio 72 with out a home. I know it's at the bottom of the size recommendation but hey that's what I have on hand. However if that doesn't work out then it's an easy swap out to a larger engine. I say that because the engine mount and firewall have elongated holes for multiple engine sizes. Well got to go to get some more work done on the Jug. Here soon I will post some pictures.
Old 10-01-2005, 01:11 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

flyer,
that engine will not work.
It does not produce enough power and is way to light. Your plane will be tail heavy; unless you mount the batteries behind the firewall or something.
The lower end engine required for this plane is a 91 4 stroke or a 61 2 stroke.

If you are on a budget a ST g90 for $119 with $33 slimline sport scale muffler will run you about 150 and give you more power than a saito 120.
Old 10-01-2005, 01:12 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I already have 3 H9 electrified warbirds,...I am just wondering if the retract struts are long (like on the P-51) which will have a tendency to wobble. 5/32" is not big enough for high struts. On the P-51 I use now FTE mech metal retracts with 3/16" and it is perfect.
on the other planes (T-6 and P-40) original retracts are ok.
these kits are top notch and the ultracote makes ez to make small scratch rrepairs.
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Old 10-01-2005, 06:00 PM
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grassroots
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

Well I guess Hanger 9 got the size wrong! It's printed on the box 72-100 four stroke. I had this same Satio 72 on a Great Planes Cub and it would pull it straight up about 100 feet from take off before needing to level out. To fly scale it would take off and climb and cruise on 1/3 throttle. The GP Cub has an 81" wing span and weighs 7-9 lbs. One person that has used the Satio 100 on other models like the H9 Corsair said it gives it unlimited performance. I am not planing on hovering my P-47 inches off the ground. I have no use for that kind of flying. As far as the tail heavy situation here in a couple hours I hope to find out.
Old 10-04-2005, 12:35 PM
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BillPTC
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I used the Saito 100 on the P-40 and it is too much engine. Moved the tail servos up front inside and battery up front. With 100 had to add 2-3 oz of weight. Fly at 1/2 throatle. the 72 or 80 should be good
Bill
Old 10-05-2005, 10:59 PM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I just received my Hangar 9 .60 P-47, and the covering looks great. Not a single wrinkle to be found and the graphics are terrific! I plan to use an OS 91 4-stroke and Robart 511 85 degree pneumatic retracts with Robostruts. In fact I have already pulled out the stock retracts and it looks as though the Robarts will fit with only minor modifications. I pulled out the plastic wheel well covers for better access to the retract bays, but intend to put them back once the retracts are mounted and I have strengthened the retract rails a bit.

John

Old 10-05-2005, 11:38 PM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

John; Your doing exactly what I plan on doing once I get this plane, soon I hope, have to convince the wife that it is a needed addition; the 511 Robarts with the Robo Struts is on my list; I plan on using a RCV 91CD 4 Stroke; there is an APC 11x8 4 blade prop I might try, not sure if it will work; I have run this engine using a 12x8 3 Blade prop with good results on another plane; the engine calls for a 13x6 2 blade, so the 12x8 3 blade worked and using the same formula of dropping an inch of diameter with each extra blade the 11x8 should work; just have to try it out, it would have a great scale look if it does work; the pattern guys use 4 blade props, must have some sort of advantage; I plan on installing the elevator and rudder servos on the inside, also plan on scraping the tail wheel and install a Kleet Plastics tail wheel, a little more scale looking, I may use a pull-pull set up to steer it. Doug.
Old 10-06-2005, 11:40 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

Doug,
The 4-blade prop sounds like a great idea. I was thinking of using a 13X7 3-blade prop on my OS-91, but I look forward to hearing how your Jug performs with the 4 blade prop. The plane sure would look good with the right number of blades out front.
John
Old 10-07-2005, 07:09 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

John could you post some pics of your robart install.I am getting ready to fly mine as it is all done except for mounting my YS91 up front.Everthing on this plane went together really nice.The covering was awsome.I had a Model Tech 47 that I flew for a year with this setup and loved the way it flew but really got tired of the crap covering always wrinkled and the weak retracts.As nice as this one looks I want to get better landing gear so any help would be great.Thanks.
Old 10-07-2005, 07:54 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

Not much activity on this new ARF from H9? I picked mine up past night and I agree the covering job is great, not one wrinkle. I have no previous experience with H9 ARF's, but have read enough to know to strenthen the firewall. Mine had 4 blocks behind the firewall and a heavy bead of hot melt glue all the way around, maybe they have been listening to their customers. I will add some epoxy and fiberglass just to make sure. I am going to try the stock retracts with a Hitec HS-75BB servo and plan to use a ST 75 with the in-cowl muffler from TF.

Will start the building today and expect to be in the air next weekend. Looks like a pretty easy build.
Old 10-07-2005, 08:34 AM
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dasintex
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I don't have this plane yet; for you guys that do, is there a way and is it possible to mount the Elevator and Rudder servos inside the Fuselage. Thanks Doug.
Old 10-07-2005, 08:39 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

no problem I did it on similar H9 planes P-51 and P-40.
It has several advantages:
- nicer
- helps on CG
- original support on the fuse is weak and might be dangerous.
Bottom line...much better inside
here is the interior of my electrified P-51 MA where you can see the 2 servos.
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Old 10-07-2005, 09:33 AM
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CAPT John
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying


ORIGINAL: edgeman55-RCU

John could you post some pics of your robart install.I am getting ready to fly mine as it is all done except for mounting my YS91 up front.Everthing on this plane went together really nice.The covering was awsome.I had a Model Tech 47 that I flew for a year with this setup and loved the way it flew but really got tired of the crap covering always wrinkled and the weak retracts.As nice as this one looks I want to get better landing gear so any help would be great.Thanks.
Edgeman55-RCU,

It looks like the Robart 511s will be a relatively easy install with just filling/drilling new mounting screw holes and dremel-ing out a couple of tight spots along the rails. It looks as though there's plenty of room in the fuselage for the air tank, especially if you use the small tank that comes with the 511 air system (they're the spring down design). I'll post photos of the retract install as soon as I can get it done -- the wife's family is coming to town, so progress may be slow for a while.

John
Old 10-07-2005, 10:07 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

What's the price of this full robart system?
(on the P-51, I use the FTE drop-in metal mech retract which are a perfect match, with 3/16 struts.)
Old 10-07-2005, 10:27 AM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I keep waiting to see some pics on this thread!
Old 10-07-2005, 03:46 PM
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CAPT John
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

The Robart 511S "economy" Robostrut ready air kit cost me $115.99 from Tower. The Robostruts were $75.98 for the pair. The 511 kit with wire struts was available for about $119. The air kit includes the retracts, air tank, lines, control valve, fill valve & T-connections.

John
Old 10-07-2005, 05:45 PM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

John,
You say you have pulled the well liners out. Is there much room to install larger wheels, or are the liners at the spar?
Old 10-07-2005, 09:46 PM
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CAPT John
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

With the wheel well covers out, the opening is right at 3 1/2". If you trimmed a rib a bit, you might fit a 4" wheel, but it would probably be tight.
John
Old 10-07-2005, 10:01 PM
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

I'm not worried about ribs, I need to know how much room to the spar and L/E.
Old 10-07-2005, 10:24 PM
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grassroots
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Default RE: H9 60 Size P-47 Thunderbolt-Build & Flying

Here are few pictures for those wanting to see more of the H9 P47. A couple notes on mine, the gear doors will not work with the hardware supplied as the lock nuts hit the bottom of the wing. There are many ways to fix this problem. I used a Hitech 75BB with good results, will post more pictures later with more in depth instructions. I found the retracts the hardest part of construction. I used Hitech 325's and one 322 one everything else. I will be trying out a Saito 72 on this model and will give a report latter on. Note: there are a few pictures of the firewall and engine mounts. Changing engines will be a piece of cake because of the elongated holes. The push rods are not much better than hard cheese, you might want to replace those and also plan on better clevises too. I will be replacing mine at a latter date. The dummy engine is made of really cheap plastic and I am not going to waste the time installing it. It does work good for lining up the engine though and should be used for this. The stock retracts might be okay I will be flying from grass and hope they hold up. The fire wall should get a good bead of epoxy inside to reinforce the hot glue. That's about it from me. Hope to fly this weekend.
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