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Reaction 54 Jet Kit

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Reaction 54 Jet Kit

Old 04-05-2012, 09:21 AM
  #2876  
bobparks2
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Default RE: Reaction 54 Jet Kit


ORIGINAL: KC36330

it does have some shift but it's not anything drastic and well worth the extra flight time.

FYI it's simulated carbon it's been taken to over 3000' AGL, never lost a single frame on any flight.
Ahh.. no worry then! 3000 ft with no frame loss is really good! Actually, SEEING at 3000 ft is pretty good too.. its a big plane, but thats a long way up. (although I was once able to see a similar size UAV at 22,000 ft.. but that was REALLY clear weather)

Bob
Old 04-05-2012, 09:23 AM
  #2877  
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Default RE: Reaction 54 Jet Kit

i've got 2.4 JR installed right on carbon heli frames with no problems but i don't take them to 3000' either
Old 04-05-2012, 09:53 AM
  #2878  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JohnVH

is cg anything to worry about? Keep everything forward as possible?

KC, notice much CG shift with that fuel tank up front?
Yes CG is something to worry about.

Yes keep everything that is heavy as far forward as possible.

I have the P70 Kero Start on mine and had to notch out the boat tail about an inch to move the turbine as far forward as possible. I have everything as far forward as possible.
I still have a just under a quarter pound of nose weight.

Now I am working on adding smoke. The only place to put the smoke system is right behind the main tank, or add a pod under the wing.
Old 04-05-2012, 09:54 AM
  #2879  
JohnVH
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Default RE: Reaction 54 Jet Kit

Ok, mine has flown with a pst600 I think before I got it, so its already notched in the boat tail, whats the best cg spot?
Old 04-05-2012, 10:44 AM
  #2880  
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Default RE: Reaction 54 Jet Kit

the R54 has a very wide stab, this broadens the CG range, as is mine used to have a pound of lead in the nose, i slowly removed all of it and it still flies awesome and smooth, no idea where the current CG is at but i'm sure it moved a good bit aft with the weight removed.
Old 04-05-2012, 10:51 AM
  #2881  
JohnVH
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Default RE: Reaction 54 Jet Kit

Ill also be flying it off grass
Old 04-05-2012, 05:28 PM
  #2882  
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Default RE: Reaction 54 Jet Kit

Michael T,

I did install the ProLink Struts on my "Reaction54 Kit Version" because our field was taking a toll on the wire gear. I have since sold my Reaction but I believe they were the nano Boomerrang set from Dreamworks and they worked great!! The wheel wells needed a little modification but it really wasn't much and the nose strut fit with no problem.

Also, don't ever sell your Reaction 54 no matter how far advance you get into jets. I already miss my Reaction

Mike
Old 04-06-2012, 05:26 AM
  #2883  
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Default RE: Reaction 54 Jet Kit

ORIGINAL: rcguy!

Ok Folks,
I have to ADD 11oz to get the Center of Gravity at midpont. This brings the empty weight to 18 pounds 10oz. I KNOW some of this is the extra stainless steel sheet to cover the entire aft bottom of the fuse. I'm a little surprised at the rapid weight gain with the turbine installed. The completed airframe weighed just under 13 pounds without the turbine. Add the 11oz and I'm at 13 pounds 10oz. The stainless steel certianly did not add an extra pound! Id say several ozs max. The UAT is full and maybe 5 or 6 ozs kerosene in the main tank. Gald I'm using a 14 pound thrust turbine instead of a 12 pounder. Alto, I'll bet the landings are a bit easier at this weight vs 17 pounds.

Ran the P60 again today for my son. Heck I had it together for the CG check. Pointed the node into the wind and fired it up. After a few minutes I shut 'er down and proceeded to defuel it and take the wing off. Bummers! Melted some Monokote on the stab! Looks like I'll be adding some SS strips to the bottom of it too! Maybe just a few inches out from each side. Turbine start was normal without any flame that I could see.

Bruce,
Could this be caused by running the turbine at WOT for a matter of half a minute? What is the normal turbine startup proceedure? Do you throttle up to check things out before flying like on a piston powered plane? Anybody else have any input on this?

Dave Rigotti
dave , that's one of the drawbacks to the 54 . i did the same thing on the first start up. the starting pipe wouldn't have helped me though . i had the gas solenoid vale hooded up back wards and the gas wouldn't shut off. keep in mind this was the very first time with a turbine setup. anyways i covered the entire bottom of the stab and fuse with aluminum tape
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Old 04-06-2012, 05:35 AM
  #2884  
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Default RE: Reaction 54 Jet Kit

The 54 is an awesome flyer with one major setback . IMO it's to EASY to land. it doesn't teach you how to handle faster , heaver more "jetty" types of jets. it's like a sig cadet senior with a turbine. no challenge at all. i have admit that it's one of the nicest kits to build i've ever done. i wish they would develop a sport wing for it. i asked bruce about it and he had no interest in doing that at all.
Old 04-06-2012, 06:47 AM
  #2885  
JohnVH
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Default RE: Reaction 54 Jet Kit

any of you guys use crow? or would it be a waste of time to setup
Old 04-06-2012, 07:01 AM
  #2886  
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Default RE: Reaction 54 Jet Kit

crow works great on the ARF, doesn't make much diffeence on the kit built.
Old 04-06-2012, 07:36 AM
  #2887  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JohnVH

any of you guys use crow? or would it be a waste of time to setup
Crow on the 54 is kind of a mute point. i know it makes a big difference on my boomer , but IMO it isn't necessary or worth the trouble on the 54 .
Old 04-06-2012, 07:39 AM
  #2888  
bobparks2
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Default RE: Reaction 54 Jet Kit


ORIGINAL: KC36330

crow works great on the ARF, doesn't make much diffeence on the kit built.
About how much throw did you use on each? (degrees deflection on both down flap and up aileron).

I have noticed that the ARF photos I have seen show quite a bit of flap deflection, like 80 deg or so, quite a bit more than the 60 deg suggested for the stock kit. There is a big increase in drag going from 60 to 80 on the flap. Its actually a slight loss of max lift, but not enough to matter on a floater like the R54.

I have notices some people suggest a half inch of up aileron for crow. Thats not a lot of throw, and I would not expect it to make much difference.

I have my main flaps set up for about 80 deg (have not measured it yet). Up aileron is currently a bit over an inch. (have not measured degrees yet) Its close to done, should be flying this month.

Bob
Old 04-06-2012, 07:39 AM
  #2889  
JohnVH
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Default RE: Reaction 54 Jet Kit

Good enough, thanks! I have the retracts in and plumbed, they held air overnight. I noticed I have a bad servo, so hopefully I have another at the shop. Was hoping to have it running tomorrow, but just too much to do, and too many other plans.

I have not programmed anything into my 10x in so long trying to remember all the tricks to setting up a jet.
Old 04-06-2012, 08:10 AM
  #2890  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: bobparks2



About how much throw did you use on each? (degrees deflection on both down flap and up aileron).

i played with all sorts of flap/aileron settings and never found one on the kit version that made a remarkably noticeable difference.

i fly with a 12x, there is no fuss over setting up crow and adjusting it (just takes a couple seconds to setup, and/or adjust) so i don't see where the hassle 'not worth the trouble' comments come into play, try it out for yoruself, adjust both flap and aileron deflections and make your own opinion on what works best for you.
Old 04-10-2012, 08:20 AM
  #2891  
JohnVH
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Default RE: Reaction 54 Jet Kit

what is the smallest grass field you guys would fly a P70 powered one off? One field Im a member at has a 200'+ paved and say 300+ grass, the other two fields are all grass 300+
Old 04-10-2012, 08:28 AM
  #2892  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JohnVH

what is the smallest grass field you guys would fly a P70 powered one off? One field Im a member at has a 200'+ paved and say 300+ grass, the other two fields are all grass 300+
With a p-70, 300' is no problem at all. a p-70 will really make her move.
Old 04-10-2012, 08:29 AM
  #2893  
JohnVH
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Default RE: Reaction 54 Jet Kit

Ok, revision, its 400' grass, but has a 5' hedge on one end, there usually is a breeze somewhat down the runway there, Ill have video rolling this weekend if everything comes together as planned.

Just have to mount the P70 tonight and double check everything, build a start tube, check throws, kick the tires....
Old 04-10-2012, 08:32 AM
  #2894  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JohnVH

Ok, revision, its 400' grass, but has a 5' hedge on one end, there usually is a breeze somewhat down the runway there, Ill have video rolling this weekend if everything comes together as planned.

Just have to mount the P70 tonight and double check everything, build a start tube, check throws, kick the tires....
still no problem.
Old 04-10-2012, 09:21 AM
  #2895  
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Default RE: Reaction 54 Jet Kit

i've flown mine off 250' and never used even half of it.
Old 04-10-2012, 11:48 AM
  #2896  
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Default RE: Reaction 54 Jet Kit

Taking off from that length is no problem.
Plan to land early on your first flight so that you have plenty of fuel for some go-arounds.
This plane does like to float a little in ground effect and it may take a couple of tries to land and stop on a short runway.
The PO of my R54 kit claimed a radar gun speed of 18 mph for landing and 170 top with the P70.
Old 04-10-2012, 12:10 PM
  #2897  
JohnVH
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Default RE: Reaction 54 Jet Kit

yeah, I plan to get on step, do some trimming, trim the flight modes and with flaps, then shoot approaches, that would be about right, figuring a 5 min maiden with the p70 and stock tank?
Old 04-10-2012, 04:02 PM
  #2898  
JohnVH
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Default RE: Reaction 54 Jet Kit

sitting here struggling a bit, how do I get this setup so the plug on the engine is within 75* of up? I see no way yet..... Searching around, I see nobody else does either, so Ill mount it as best as i can..

I also dont see a point for the thick ply pieces to space the engine lower, are they needed at all??
Old 04-10-2012, 11:25 PM
  #2899  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: JohnVH
I also dont see a point for the thick ply pieces to space the engine lower, are they needed at all??
The flanges on the JC mounting straps are not on the turbine centerline. The intent was for the larger flange to be positioned over the top of the turbine, the smaller strap underneath. This arrangement needs the ply spacers. If you can make it work with the straps the other way around, maybe you don't need the spacers.
Old 04-10-2012, 11:31 PM
  #2900  
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Default RE: Reaction 54 Jet Kit


ORIGINAL: flyinfool1

Taking off from that length is no problem.
Plan to land early on your first flight so that you have plenty of fuel for some go-arounds.
This plane does like to float a little in ground effect and it may take a couple of tries to land and stop on a short runway.
The PO of my R54 kit claimed a radar gun speed of 18 mph for landing and 170 top with the P70.
Good advice. Takeoff distance is not an issue. Rollout distance after landing is not really an issue, especially on grass. The tricky part is putting it down on the first third or first half of the runway. Your approach with the R54 will probably be lower, slower, and flatter than jets you have flown in the past.

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