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RE: Reaction 54 Jet Kit - 11/6/2007 2:15 AM   
otie_63


 

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From: anchorage, AK, USA
Status: offline 		Hello...anybody know's who has a exhaust turbine wheel for pst j600r
Pls...e-mail me jet_a1_turbine@yahoo.com
thank you

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RE: Reaction 54 Jet Kit - 11/6/2007 3:46 AM   
swansons



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John S.

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RE: Reaction 54 Jet Kit - 11/8/2007 3:28 AM   
mr_matt



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quote:

ORIGINAL: pjacq

I have just finised my 54 except for setting up the throws and the balance.It has a mamba 11.5lb for power with jr radio and robart 530 on the mains with the jetpower struts from dreamworks.I tryed to keep it simple for my winter flyer of the frozen lake that I live buy. Paul Jacques



[image][/image]



Hello Paul,

I am looking at using trailing link main gear as well. The issue I have seen is that they all appear to be too long (compared to the wire struts in the plans). Can you tell me the distance on yours from the bottom of the wing surface to center of the axle? Also, what wheels and brakes are you using.

Thanks very much in advance for the information.

Regards,



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RE: Reaction 54 Jet Kit - 11/12/2007 5:43 PM   
flyinfool1



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From: Cudahy, WI, USA
Status: offline 		Well the R54 is responsible for yet another turbine waiver sign off.
Over the week end I was signed off on the first attempt.
Once I had the signed paper in my pocket, I was able to let loose a little to see what this thing can do.
So far I have not found anything it can not do.

All of the other jet fliers at the field (and the jet wannabe fliers) were very impressed to see a jet nearly stop and park in a 10-15 MPH wind and still have enough control authority to roll over into a split-S for a high speed pass, and tear up the sky with aerobatics.

I can see I will HAVE to add smoke.

Landings I was told I was to high and to fast till I dropped the barn doors as I came over the edge of the field, and settled in light as a feather right in front of me.

Nice design job Bruce.

Now I just need to get used to what feels to a jet noob like a 10 minute throttle lag. (In reality it is about 6 seconds.)

Too bad the snow is about to fly and end our flying season for things that must ROG, unless I can figure out how to do skis.


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RE: Reaction 54 Jet Kit - 11/12/2007 8:21 PM   
BruceTharpe



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Status: offline 		Way to go Jeff! Congrats! Yeah, you're right about the throttle lag. I often tell new R54 pilots, who are transitioning from props, that the airplane flies normally - it's the throttle lag that takes the most getting used to.


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RE: Reaction 54 Jet Kit - 11/13/2007 1:59 AM   
1Eye



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quote:

Mr Matt replied ...
I am looking at using trailing link main gear as well. The issue I have seen is that they all appear to be too long (compared to the wire struts in the plans). Can you tell me the distance on yours from the bottom of the wing surface to center of the axle? Also, what wheels and brakes are you using.

I'm using knuckle dragger struts in mine which I think were originally fabricated by Sierra Precision - I ripped them outta my TopCat. I've got Glennis wheels and brakes. Extended, they are no longer than wire struts. I did have to move the retracts forward in the wing to maintain the ramp-wheel-CG relationship - that took a few mods. If you want measurements I can get them and post later.



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RE: Reaction 54 Jet Kit - 11/13/2007 11:08 AM   
mr_matt



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From: Oak Park, CA,
Status: online 		Hi Mike,

Thanks for the offer, I am really looking for that typical trailing arm gear, and the packages from Jetpower look pretty attractive but I don't see how they would fit, that is why I was wondering what Paul used, nothing Todd sells looks like it will yield a short enough strut.

Here is what I need:

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RE: Reaction 54 Jet Kit - 11/22/2007 6:42 PM   
MECHIE TECH



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From: NE Scotland, UNITED KINGDOM
Status: offline 		Hi Bruce,

How did your tank set up work out eventually? any problems with air etc ?

Regards,

M.T.

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RE: Reaction 54 Jet Kit - 11/22/2007 8:09 PM   
BruceTharpe



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Status: offline 		Worked perfectly all summer. Flights were typically 6 - 8 minutes, main tank would end up with less than 1/4 kero. Hopper would have air, but never more than 1/4 tank. Hopper used a pleated paper filter, set up as a clunk, so I would expect it draw bubble-free fuel even if partially exposed to air. Never tried running it dry like Woketman, but it should be good to the last drop.


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RE: Reaction 54 Jet Kit - 11/23/2007 2:36 AM   
Woketman



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From: Slidell, LA, USA
Status: offline 		It certainly is! When weighted and placed on the end of a thin Tygon tube (so that it can really get around) it will scavenge the last little bit of fuel. Steve Ellzey (who is the person that originally told me about the pleated paper) did some experimenting, years ago, for a small turbine powered cruise missile project he worked on. They determined that the pleated paper will continue to deliver a bubble-less fuel supply EVEN WHEN 95% OF THE PAPER'S SURFACE IS EXPOSED TO AIR!!! That is pretty incredible, but it all works thanks to surface tension.

Happy Thanksgiving you guys!!!!

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RE: Reaction 54 Jet Kit - 11/26/2007 8:18 PM   
racer8297


 

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Status: offline 		I am getting ready to hinge my Reaction. Is everyone using the supplied EZ hinges with no problems? I am glassing my Reaction right now and will be painting it with automotive paint, hopefully be Christmas. But before I paint it I want the hinges to be ready to go.

BTW, thank you Bruce for all the help! It was a pleasure talking to you and I am so happy with the kit. The wood is spectacular. The intructions are easy to follow and very complete. It is amazing how most everything fits so well and is almost self aligning! And thank you for allowing me to split the P70 into two payments. Especially as the holidays are approaching, it made getting into my first jet almost painless.

Jim

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RE: Reaction 54 Jet Kit - 11/26/2007 8:36 PM   
bobparks2


 

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Status: offline 		Quite a few years ago, I got a bunch of CA type hinges and did some testing on them. First was glue penetration and bond strength, with all of them tested in balsa with normal thin CA. Glue them in, allow an hour or so for the CA to cure, then try to break the joint. The other test was a notched tear test. Use a sharp knife to cut a notch into one edge of the hinge, then try to tear it.

The Sig EZ hinges that Bruce uses were by far the best. The bond was stronger than the wood, and I was not able to tear them. Other brands did not have the CA penetration, the hinge itself delaminated, or they just unzipped in the tear test. Some of the other major brands were REALLY bad in comparison. Supposedly the Sig hinges have something to slow down the CA cure so it penetrates better, but they sure had 100% of the hinge bonded to the wood.

So, I think the kit hinges are fine. Just make sure you have some fresh, thin CA to glue them with, and fully assemble the hinges THEN do the glue. If you glue one side first, the glue will wick into the outer layer of the hinge on the exposed side and cure, and then you will not get a good bond on the second side. I just push a pin through the center of the hinge so that it stays centered on the hinge line.

Bob

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RE: Reaction 54 Jet Kit - 11/26/2007 8:58 PM   
racer8297


 

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Status: offline 		Thanks Bob. Out of curiosity, did you test the Radio South blue hinges?

Jim

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RE: Reaction 54 Jet Kit - 11/26/2007 9:08 PM   
TommyWatson



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From: Pendle HillNSW, AUSTRALIA
Status: offline 		I am just starting to build a small Reaction for my Wren 44 gold Autostart. I had the plans reduced to 82%. Gives me about 64 inch wingspan. Hope to keep the weight under 12 pounds. I have built two Reactions and after starting this project i now realised what a great kit Bruce produces and the amount of work he has put into this kit to get all the parts cut to fit.

If I could get a 82% BTE kit for the reaction there is no way I would go to all this trouble. And the worst thing is even with my best efforts and care, my home made kit is nowhere near as good as the BTE kit.

Great work Bruce and thanks for your help with this Reaction 44 Project.

Regards






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RE: Reaction 54 Jet Kit - 11/26/2007 10:09 PM   
bobparks2


 

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Status: offline 		I did the tests a very long time ago and am not positive about it. I THINK I did the Radio South hinges and they were also good. I sort of recall doing those after I did the original tests, because they were not available at the local shops. The main thing I remember was that the Sig EZ were the best of the original test batch, and since they were also easy to get locally, I just remember that those are the ones to buy when I go to the store..

Some of the bad hinges failed miserably. No penetration/bond to the wood, deamination of the hinge itself or tore very easily. I would not trust them in anything more than a really slow park flyer, and then only if I did not have better hinges on hand.

Bob

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RE: Reaction 54 Jet Kit - 11/27/2007 3:24 AM   
causeitflies



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Status: offline 		So, who sells the bad hinges, besides Great Planes?

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RE: Reaction 54 Jet Kit - 11/27/2007 3:47 AM   
bobparks2


 

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Status: offline 		GP was bad (at least the ones I tested). Goldberg was intermediate. I really do not remember the rest of the details. I figured that if I could not get Sig hinges anymore, or they got worse, then I would just repeat the test!

Bob

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RE: Reaction 54 Jet Kit - 11/27/2007 4:16 AM   
Helijet


 

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From: Kamloops, BC, CANADA
Status: offline 		I used the hinges as supplied by Bruce. My Reaction had over 200 flights before I sold it this fall. The new owner has since put on a coupl edozen more.

Dean W.

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RE: Reaction 54 Jet Kit - 11/27/2007 5:13 AM   
afterburner



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Status: offline 		I used Great Planes nylon pinned hinges in mine. The only bad CA hinges I' ever had was the ones that came with a Hangar9 Ultra Stick. They all cracked at the hinge line after a few years. I lost an elevator half, rudder and aileron at one time or another and finally decide to replace all of them with the nylon GP hinges. I miss my Stick . The most relaxing plane I ever had.

Marty

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RE: Reaction 54 Jet Kit - 11/27/2007 7:53 AM   
ww2birds



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From: Katonah, NY, USA
Status: offline 		Hi to all, and many thanks to everyone for such a great thread, and to BT for such a nice airplane.

A while ago, I posted on this thread some ideas and questions on speedbrakes. I am back at it now, and have done the basic construction of a slightly increased top hatch, hinged to act as a speedbrake.

There was some back and forth about the size of the brake, and if it would "blank out" the vertical fin and/or elevator. I decided to keep the size modest and not take too much of a risk of these problems, and also to actuate it with a servo vs. the traditional air control .. this will give me the ability to deploy it proportionally. Should not be any more load than one of the flaps .. probably much less due to the much smaller area in the airstream.

I have the Wren 54SS for the airplane, we just test ran it partly for curiosity, partly because Wren recommends it if you are a newbie, and partly to act as a spur to get the airplane going.

We will be doing her in a color scheme similar to a Panther I have seen, with an insignia blue fuse, yellow tail and wing, and orange instrument trainer stripes with Navy-like details. I have some nice markings from Jerry Caudle to finish her off. Will be using "BT" (the original Panther is "ZZ" ) for the two letters and "54" for the two numbers to tip my hat to the designer!

Here are some pics... (just looked at the posting .. looks like I cut the resolution down a bit too much .. the diagonals look wavy!)

Dave



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RE: Reaction 54 Jet Kit - 11/27/2007 8:09 AM   
Eddie P



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Status: offline 		A Panther scheme should be very "at home" on a Reaction 54!

Love the speed brake idea, but you'll probably have to restrict the deflection as you suggest at first. I wonder if the natural pitch up caused by the drag moment will be neutralized by the turbulence it will cause over the tail that would result in a pitch down? It may be a neutral effect pitch wise - it will be interesting to see the results. Try it up high at first

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RE: Reaction 54 Jet Kit - 11/27/2007 3:24 PM   
ww2birds



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Status: offline 		Well, even if it is aerodynamically funky, it will make a perfectly good servo-controlled hatch :-)


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RE: Reaction 54 Jet Kit - 11/27/2007 3:38 PM   
rcguy!



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quote:

ORIGINAL: ww2birds

Hi to all, and many thanks to everyone for such a great thread, and to BT for such a nice airplane.

A while ago, I posted on this thread some ideas and questions on speedbrakes. I am back at it now, and have done the basic construction of a slightly increased top hatch, hinged to act as a speedbrake.

There was some back and forth about the size of the brake, and if it would "blank out" the vertical fin and/or elevator. I decided to keep the size modest and not take too much of a risk of these problems, and also to actuate it with a servo vs. the traditional air control .. this will give me the ability to deploy it proportionally. Should not be any more load than one of the flaps .. probably much less due to the much smaller area in the airstream.

I have the Wren 54SS for the airplane, we just test ran it partly for curiosity, partly because Wren recommends it if you are a newbie, and partly to act as a spur to get the airplane going.

We will be doing her in a color scheme similar to a Panther I have seen, with an insignia blue fuse, yellow tail and wing, and orange instrument trainer stripes with Navy-like details. I have some nice markings from Jerry Caudle to finish her off. Will be using "BT" (the original Panther is "ZZ" ) for the two letters and "54" for the two numbers to tip my hat to the designer!

Here are some pics... (just looked at the posting .. looks like I cut the resolution down a bit too much .. the diagonals look wavy!)

Dave



Dave,
The "speed brake" is unnecessary. The R54 lands at a slow pace as designed. Just ask the many who have completed the project. I was completely happy with my box stock R54. Have fun but be very careful about adding weight behind the CG as most have had to add ballast to the nose to get it within specs.

Dave Rigotti

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RE: Reaction 54 Jet Kit - 11/28/2007 12:51 AM   
ww2birds



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Status: offline 		Thanks, Dave. Yes, I've read all your posts with great interest, and if the truth be told, the speed brake idea was really more about looking cool than slowing down .. I was inspired by the mod that people do to the Eurofighter, and the full scale F15.

Dave


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RE: Reaction 54 Jet Kit - 12/1/2007 7:19 AM   
Molar mender



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From: Lake Tapps, WA, USA
Status: offline 		Finally got my Reaction done. I bought the kit at the Princeton, BC, Canada jet meet in September and it took me two weeks to get it framed up and ready to cover. Then off to the Woodland jet meet in Sacramento with a visit to see grand kids while in town. Then we went up to Utah to visit grand kids and take in a college football game. Finally got home the first of November. It took a week to get all the Monokote in place and then I took another break to get ready for Thanksgiving. Started the turbine and radio install this last week and got it all done tonight. It only took 9 ½ ounces of lead in the nose and the final weight was 19 lbs 12 oz. So total time for the build was one month, spread out over the last 3 months.

The color scheme is patterned after my old AV8R I built 5 years ago. It’s all blue on the top and all white on the bottom with the white meteors for accent. I also extended the rudder by 1 1/2 inches and used a pull/pull system to run it. I installed the UAT up front, air tanks and fuel pump in the back. I put my shut off valve and other service items in a cluster up front also, where I can get to them. I installed the PST J600R and am using a JR 8103 PCM radio. This should be an interesting experience as I have always been a Futaba user in the past so this is my first JR radio. Aurora retracts, Robart struts and Trim wheels and brakes.

Now I just have to wait for some decent weather to get the maiden flight done. We are supposed to be getting snow in the next day or so. That’s why the photos were taken in my shop as it is just too cold outside.

RH

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