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Reaction 54 Jet Kit

Old 04-25-2008, 04:39 PM
  #2176  
mr_matt
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Default RE: Reaction 54 Jet Kit

We got rid of the hatch on mine as well. Pictures when I get the plane from my dad. P-70 (Serial Number #1) planned
Old 04-25-2008, 08:30 PM
  #2177  
JimBrown
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Default RE: Reaction 54 Jet Kit


ORIGINAL: bobparks2
I dont know of any R54's that have been in high speed crashes, but the chances of one fireballing are among the lowest of ANY jet designs out there. The long wooden nose is also a pretty good crush zone.. much better than the typical composite "egg shell" fuselage.
Hi Bob,

You now know of at least one high speed R54 crash. Mine, last year. Due to dumb thumbs during a split S to a high speed low pass. Fortunately, it occurred as the jet was almost level, so it ended up as more of a pancake with a wing tip strike first. No time to shut anything down, so engine was at full throttle.

Due to the wing tip strike and shallow angle, the engine departed the airframe at an angle, and did not get near the main tank. Airframe damage was everything behind the boat tail destroyed and half of one wing half destroyed. Everything forward of the boat tail remained intact. A great testament to Bruce's excellent design. (But too much damage for my lazy butt to rebuild.)

My second R54 is almost ready to maiden!

...jim
Old 04-25-2008, 08:35 PM
  #2178  
ww2birds
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Default RE: Reaction 54 Jet Kit

My R54 hatch has two large Sig hinges at the front, and a "super" magnet 3/8" dia holding onto the head of an allen screw that has been ground flat .. has not opened in flight at least so far!

Dave
Old 04-27-2008, 08:31 AM
  #2179  
BruceTharpe
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Default RE: Reaction 54 Jet Kit

Not sure if it's mentioned in the instructions book, but I always intended that rear hatch to be optional and/or re-positionable by the builder. There is nothing sacred about its position, it just worked out in my first installation to be a good place for access to the fuel valve. Like Bob said, I'd much prefer no hatch back there from a structural standpoint, but it's handy. I've never heard or seen any problems with it blowing open in flight. Sounds like a real hatch latch would be the best solution.
Old 04-27-2008, 07:34 PM
  #2180  
F4 d best
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Default RE: Reaction 54 Jet Kit

Hi everybody,

Just to let you know that my R54 has landed safe and sound with still a lot of glueing and sanding to be done......


Picture shows the shipping box full of wood and parts, thanks Bruce.


Mario

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Old 04-27-2008, 08:24 PM
  #2181  
flyinfool1
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Default RE: Reaction 54 Jet Kit

Bruce, That is kind of why I was going to screw it down.
The screws would give me some structural benefit yet still leave me able to service the 2 air tanks back there.
Old 04-27-2008, 10:05 PM
  #2182  
bobparks2
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Default RE: Reaction 54 Jet Kit

You would need a LOT of screws before it made much difference structurally. If you had birch ply hatch with screws into maple, it would not need too many. With screws through balsa or lite ply, you would need a lot of them.

Now, its not THAT critical to get extra strength back there, since its pretty good already, and I dont think there are any reports of breakage at that point. So, use enough screws to hold it in place, and dont worry about the loads.

Bob
Old 04-28-2008, 11:36 AM
  #2183  
cjshaker
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Default RE: Reaction 54 Jet Kit

I have not found the kits available on eBay, and Bruce is currently out of the kits.

His new composite ARF Reaction 54 is not suitable for smaller motors, such as the Jetcat
P-60, so it seems to me that the balsa kits will still be in demand.

I've got an undisturbed Reaction 54 kit, the retract package, the wheel and brake package,
the fuel system package, the full size covering templates, and the 'corner sander' that
I might sell. Not sure yet if I want to sell it.

I saw Bruce's own Reaction 54 at Jets Over Whidby last year, and I was impressed with the
elegant simplicity of his personal airplane, built according to plans.

I've got $470 in the kit, $320 in retract package, $80 in wheel and brake package, $22 in the
fuel system package, $30 in the covering templates, and $15 in the corner sander, for $937
total spent.

http://www.btemodels.com/r54.html

Chris Shaker


ORIGINAL: DavKhy

I have a question about the Reaction 54 kit. What is the going price for an undisturbed kit with retract gear set up? I might have a line on one and want to know what they are worth in this state.
Old 04-29-2008, 03:15 PM
  #2184  
JohnVH
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Default RE: Reaction 54 Jet Kit

^^ Haha, beat me to it!

I also have a mostly NIB wood kit, no extra's, I have the wings almost completed, and are sheeted on one side.. Rest of the kit is untouched, NIB! I bought one already built, so I dont need this one anymore.

I have flown an R54, and they fly awesome, and the hard part is almost done on mine for someone that wants one! PM or email me if interested in my kit. how about $400 for it.

Thank you
John
Old 04-29-2008, 07:42 PM
  #2185  
cjshaker
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Default RE: Reaction 54 Jet Kit

As I said, I'm not sure I want to sell mine. Keep wondering about turning it into an
EDF. :^)

Chris
Old 04-29-2008, 07:52 PM
  #2186  
Ron Stahl
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Default RE: Reaction 54 Jet Kit

My rear hatch is held closed by 3m clear vinal tape. It has never opened in flight.
Old 04-29-2008, 09:11 PM
  #2187  
JohnVH
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Default RE: Reaction 54 Jet Kit

Mine is for sale, as I have another one.
Old 05-02-2008, 02:32 AM
  #2188  
maxvertical
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Default RE: Reaction 54 Jet Kit


ORIGINAL: bobparks2



Now, its not THAT critical to get extra strength back there, since its pretty good already, and I dont think there are any reports of breakage at that point. So, use enough screws to hold it in place, and dont worry about the loads.

Bob
LOL, Just don't try to pick it up using the aft hatch area as a hand hold... As I found out, it will break.. Was actually a bit brainless on my part and something I won't ever do again, but figured I'd best pass that along before someone else finds out the hard way. The nice part is being wood, very simple fix.
Old 05-02-2008, 07:30 AM
  #2189  
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Default RE: Reaction 54 Jet Kit

Ouch...never thought to pick up the model using the aft hatch opening. Thanks for the warning. Speaking of the aft hatch, has anybody used the aft hatch as a speedbrake? Seems like a great place for one...I'm thinking about doing it on mine.

Speedbrake
Old 05-02-2008, 11:05 AM
  #2190  
bobparks2
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Default RE: Reaction 54 Jet Kit

A speedbrake there is directly upstream of the vertical tail, so expect some yaw wiggle and loss of stability due to the speed brake wake hitting the vertical.

Most of the full scale jets with an upper body speed brake have twin verticals, so its not a problem for them.

More flap deflection and/or crow mode would probably give more drag.

bob
Old 05-02-2008, 01:33 PM
  #2191  
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Default RE: Reaction 54 Jet Kit

I'll give it a try and see what happens. It will be interesting to see just how much the turburlance affects the vertical/yaw.

speedbrake
Old 05-04-2008, 10:48 AM
  #2192  
ww2birds
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Default RE: Reaction 54 Jet Kit

We discussed this a while ago on this thread .. I built my rear hatch so that it could be used as a brake, but I have not put a servo or air cyl on it yet... there were a lot of comments about airflow blocking the vertical fin/rudder, but it is done with great success on the single-tail Eurofighter (see the Dreamworks pages on the EF upgrades) .. of course the EF has a VERY tall tail fin. So I built mine with a small-ish hatch so that it won't block the whole fin.

Here is a pic from the build...

Dave
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Old 05-04-2008, 02:51 PM
  #2193  
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Default RE: Reaction 54 Jet Kit

Hey..yes we did chat many months ago. Your speedbrake looks great. Hope to hear about how it performs soon. I think the hatch area will be fine for a speedbrake. I'll modify my Reacton this summer. I plan to continue using the hatch for access to the fuel valve and refuel tube. Just leave the speedbrake up after landing for access.


Keith
Old 05-14-2008, 02:45 PM
  #2194  
JohnVH
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Default RE: Reaction 54 Jet Kit

does the reaction really need a speed brake?
Old 05-14-2008, 02:52 PM
  #2195  
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Default RE: Reaction 54 Jet Kit

Mario,

It will go together really well. I did mine in a month of evenings. If you need any clarificaions give me a call, but the manual is clear as crystal. Will give you a call when it is suitable for flying mine, maybe you would want to come over.......

regards

Joseph
Old 05-14-2008, 02:54 PM
  #2196  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JohnVH

does the reaction really need a speed brake?
NO
Old 05-14-2008, 03:08 PM
  #2197  
kkn
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Default RE: Reaction 54 Jet Kit

Mario,

A recent Pic.

regards

Joseph

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Old 05-14-2008, 04:03 PM
  #2198  
JohnVH
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Default RE: Reaction 54 Jet Kit


ORIGINAL: TommyWatson


ORIGINAL: JohnVH

does the reaction really need a speed brake?
NO

What I already knew Thanks for the confirmation
Old 05-14-2008, 05:45 PM
  #2199  
JimBrown
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Default RE: Reaction 54 Jet Kit

Hi Guys!

My second R54 (built by me this time) took to the air this past Saturday. As expected, it flew great! Not only was it the first flight on a new jet, but it was my first flight of the season (did I mention we had a lot of snow this winter?)

Feels good to get the thumbs twiddling again.

No pics yet, but my club posted a couple of pics on our web page from the last meeting, where I took it in for "bring and brag". http://stetsonflyers.com (Note of interest: Our club meetings are held at the Canadian National Aviation Museum, in the theatre at the back. Helps that one of our club members works there. Heh.)

Have a good one!
...jim
Old 05-14-2008, 06:03 PM
  #2200  
rcguy!
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JimBrown

Hi Guys!

My second R54 (built by me this time) took to the air this past Saturday. As expected, it flew great! Not only was it the first flight on a new jet, but it was my first flight of the season (did I mention we had a lot of snow this winter?)

Feels good to get the thumbs twiddling again.

No pics yet, but my club posted a couple of pics on our web page from the last meeting, where I took it in for "bring and brag". http://stetsonflyers.com (Note of interest: Our club meetings are held at the Canadian National Aviation Museum, in the theatre at the back. Helps that one of our club members works there. Heh.)

Have a good one!
...jim
Jim,
Ya got skid plates on the wing tip bottoms?!!
Nice job!
Seeya soon.

Dave Rigotti

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