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Yellow F-15 ARF Assembly Thread

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Yellow F-15 ARF Assembly Thread

Old 01-09-2016, 10:52 AM
  #251  
express170
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Got a kit off the f15 last year been putting it together over xmas very pleased with it. I see brandom is putting a jetcat 140 in .I was thinking off using my jetcat 100 or jetmunt 100 .would a 100 be ok on power
Old 01-09-2016, 12:20 PM
  #252  
grbaker
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would a 100 be ok on power
Yes. They have been flown with P80s and there was at least one guy that flew one with a P70. I would not load it up with external tanks, bombs or missiles.
Old 01-09-2016, 01:32 PM
  #253  
express170
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Is it worth using the bypass what difference doze it make
And thanks for reply I will use the jetcat 100
Old 01-09-2016, 04:17 PM
  #254  
bri6672
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Originally Posted by express170 View Post
Is it worth using the bypass what difference doze it make
And thanks for reply I will use the jetcat 100
With a 100 I would use the bypass to help reduce some drag and pick up the cruising speed a bit..
Old 01-09-2016, 08:35 PM
  #255  
raron455
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Ok, heres my input,
I have about 70 flights on mine now, I added a details4scale functional droptank on mine for added flight time. I weighed mine at our jet rally in sept on a set of xicoy scales. Full of fuel and ready for takeoff it weighed almost 35lbs. I put a jetcat 120 (around 27lbs thrust) in mine when I put it together, it flies well but I cruise around 3/4 throttle, takeoffs do take some runway, and I do a smooth climbout and make my turn before I pull my flaps and gear up. When on step the plane flies great, but like I said about 3/4 throttle cruising, and vertical is definately limited. I am going to be adding ordnance to mine and just aint digging the 120, I am currently swapping in a KT170 in mine to give it the smash I am wanting for shorter takeoffs and strong vertical. I contacted Shaun, he informed me the pipe can handle the 170, and he has had 2 with a 170. This is my honest experience with alot of flights on this particular bird. If you are going to run a small turbine, you MUST keep it light. Fyi I run only the bottom half of the bypass, and two ears of bypass on the top, at the rear of the turbine to protect the tanksmine is setup with stock tanks,a hansen hiflo UAT, 2 fromeco 2600 flight packs, powerbox smart dual regulator switch, 3 air tanks, (brakes/doors---gear--air brake) I do not have a pilot or opening canopy in mine. Swapped to sullivan skylite tires on the mains, and a 2 1/4 bvm nose wheel (I wore my stock foam tires out).
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Old 01-09-2016, 09:21 PM
  #256  
bri6672
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Nice Ronnie!

i agree with the big power! My 140 put out 34lbs of thrust on the stand and mine is 35lbs fully fueled as well. Mine cruises at 1/2 throttle no problem and plenty of vert. Mine is one of the Arfs and I actually flew in on EDF with a Shubi for a few years! The jet can definitely fly with low power. It not nearly as fun! I believe Shuan had his 170 detuned closer to the 140 power..
Old 01-10-2016, 10:57 AM
  #257  
express170
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With the last couple off posts rethinking about power
And a jetmunt 140 is looking likely I would wont a bit off performance
Old 01-10-2016, 02:17 PM
  #258  
raron455
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It's always better to have it and not need it
than to need it and not have it

and that merlin 140 will make the plane much more enjoyable than a p100 ever could.

Last edited by raron455; 01-10-2016 at 02:51 PM.
Old 01-11-2016, 11:56 AM
  #259  
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Hi

Nope, after the first few flights, I flew her at full kick since I had so much ordnance hanging. Only used it in the vertical, though.
Old 01-11-2016, 03:29 PM
  #260  
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Originally Posted by raron455 View Post
Ok, heres my input,
.
Wow, that's one heck of a secure mounting system you have there!

Last edited by TTRotary; 01-11-2016 at 03:36 PM.
Old 01-24-2016, 01:59 AM
  #261  
express170
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Thinking off using futaba 3071 servos on the elevators
Servo spec is 10.5 kg
Would they be powerfull enough
Old 01-24-2016, 07:37 AM
  #262  
raron455
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Originally Posted by TTRotary View Post
Wow, that's one heck of a secure mounting system you have there!
The first pic was from the jet rally in September, the second picture is from this month right after I made and installed the new rails, makin sure it fit as planned.

Express,, those futabas are only 146 oz. I had mine on Jr 8411s (188oz.) on the elevators, it flew fine but I never really trusted them and was always easy on the stick. While swapping to the 170, I also swapped my rear elevator servos to MKS 777s, the truth is its a heavy plane, I wouldnt trust anything under 300oz. Thats my personal preference, as always opinions vary...

Last edited by raron455; 01-24-2016 at 08:56 AM.
Old 01-24-2016, 09:20 AM
  #263  
express170
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Ok thanks for that raron455
Going to use futaba BLS175V 21kg then
Using futaba servos as I wont to sbus the plane
Old 01-24-2016, 08:35 PM
  #264  
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Hi

While I understand the impulse to use as much servo back there as you can, I do want to remind you of a couple of facts for your consideration. First, the plane was originally flown with 8411's back there for years with no issues. I did the same on seven of these planes over the years. Second, the part of the stab in front over the pivot helps move the part behind. Those stabs are well designed and engineered, and they'd probably work fine with considerably less power back there. We flew jets on much weaker servos back when 8411's were considered monsters. My first Avonds F-15 had Futaba S148's on the stabs. Of course it was lighter and slower, but today nobody would dream of going with less than 3 or 4 times that much servo back there. When a 500 ounce servo in a standard sized case comes along, that will soon be considered the marginal, minimum requirement
Old 02-07-2016, 06:56 AM
  #265  
express170
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Anybody know were I can get a cockpit and pilot from for the F15
Old 02-07-2016, 07:07 AM
  #266  
bri6672
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Originally Posted by express170 View Post
Anybody know were I can get a cockpit and pilot from for the F15
A company called Just the Pits was making them and might still be around.

I just got back from the Coachella Jet Jam and had about 10 flights on my 15. I had not flown it in awhile and forgot how awesome this jet is! The 140 is perfect for the model, high speed passes looked awesome and after about a minute of flight to burn some fuel the vertical felt unlimited. I really need to fly the model more, it is sooooo fun!
Old 02-07-2016, 07:53 AM
  #267  
Dieselman1220
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Just the pits no longer sells the cockpit. I finished mine up last year and IIRC I used a jet legend 1/8.5
f15 cockpit that fit without much issue.
Old 02-07-2016, 08:07 AM
  #268  
Dieselman1220
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Heres a few pics including a close up of the cockpit. The pilot is a CJM 1/9 fit perfect.




Old 02-07-2016, 10:38 AM
  #269  
express170
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That schem very nice
Is it the iraq war color scheme
Old 02-07-2016, 12:45 PM
  #270  
Shaun Evans
 
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Joseph,

Nice looking bird! Did you build and paint that yourself? Curious... why do you have the main struts on backwards?
Old 02-07-2016, 03:13 PM
  #271  
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Damn, I wish they made this still.

Old 02-07-2016, 03:47 PM
  #272  
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Originally Posted by Shaun Evans View Post
Joseph,

Nice looking bird! Did you build and paint that yourself? Curious... why do you have the main struts on backwards?
Hey Sean, good eye I never noticed they were backwards. All works just fine though.
Old 02-07-2016, 04:22 PM
  #273  
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Hello, making progress here... there is a lot of stuff to fit into this fuselage! Well I guess my struts are backwards too... Im not sure how to trim down the cockpit correctly? I have the stock cockpit still in the bag ifanyone is looking for one. If anyone has suggestions on placement of my components I could probably use ideas haha. This is my first official turbine jet build. Thanks!
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Old 02-07-2016, 04:23 PM
  #274  
raron455
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Just put my 3rd flight today with the new 170,,,what a beast..timer is up to 6.5 minute flights with good reserve fuel left.

And yes, Josephs looks awesome,, at the GSW jet rally last year we got two flight in together, looked great,,ill try to find the pix.

Last edited by raron455; 02-07-2016 at 04:32 PM.
Old 02-12-2016, 09:36 AM
  #275  
express170
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bRandom I see in your last post you have a cockpit would you post out to the uk
I pm you about it

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