RE: Regal Eagle - A Journey
 

The Bi-Avistar is wicked!

That is a piped YS standard stroke 60 on the front, lots of RPMs, goes like mad!

Sammy,
Take Bob's advice, check the thrust and put that baby in the sky.

RE: Regal Eagle - A Journey
 

Ok Guys, i am completing this jet now and it will be ready for flying very soon, can anyone of guys who have built this type of jet can give me recommended specs for Regal Eagle from Bob Parkinson?, currently i have all servos mounted except for steering and throttle servo , i also have all flight control surfaces firmly hinged in with Dubro's adjustable control horns and HD regular horns on rudders but this plane is very much tail heavy right now, what can i do to to keep it in balance range, i highly dought even with steering servo, rx and battries she will sit on its nose!....

Sammy

RE: Regal Eagle - A Journey
 

Sammy


From 3D experieince I still think tailslides would be fun. Aft CG will Help! Besides, saw a nice show on the Military Channel about Edwards Airforce Base. Tailslides in the F-15 were part of a study they did there. So its a scale maneuver!

Good luck,

bob

RE: Regal Eagle - A Journey
 

Battery receiver and steering servo will make a huge difference. I mounted my battery in the very nose and it is almost three feet fore of the CZG. Don't rush to judge before you do that. Then if you can move anything forward move it. Once that is exhausted, try to lighten the tail end, even so far as removing the plastic tail cones (if they are non functional weight) if necessary. Then add lead as a last resort to come within range. That's pretty much all you can do.

RE: Regal Eagle - A Journey
 

Sammy

With the nose so far from the CG, mount in the gear up there before you do anything else. It sounds from BP's post that the tailcones are important in controling the thrust vector. Do I remember correctly that you have rudder servo's in the tail? If you do wait til you have mounted everything else and cheked the CG. I doubt you'd have to add much weight with the nose that long to balance things. If you do you can always move rudder servos forward and run em thru a pushrod or Nyrod even. As small as they are they are really not going to do very much. On the other hand you could enlarge em to 3D size and then.... never mind.

bob

RE: Regal Eagle - A Journey
 

Hi Guys,

I have rudders on both vertiacal stabs and they are operated with S-148s, one on each rudder, as for moving them up, sorry its too late to do that, i am going to get 6V 5 cell Nicad battery for this bird, as for Rx i will be using Hitec's electron 6 that i bought for this bird. I still have to add Steering servo tray and i am going to mount another S-148 or S3003 in there. Tonight i got all flight controls wired up, connected servos with flight controls by means of metal rods. I dought if this jet is going to be in 10lbs range, i wont be surprised if it hit 12Lbs range also.

Sammy

RE: Regal Eagle - A Journey
 

Anyone who can give me specs of Regal Eagle weights, both dry and wet....


Sammy

RE: Regal Eagle - A Journey
 

Sammy,

Mine have weighed from 12 3/4# to 11 1/2# (dry-never weighed one with fuel). They all flew great. The difference you will see between light and heavy is in the take off length and vertical performance. I've never seen one come in at any where near 10#. I have seen a 13# RE flown from grass.

RE: Regal Eagle - A Journey
 

Thanks Gary now i know i am in good area weight wise,

I have few more questions.

Do you guys use 9 guage wires from servo to the Rx or Fut/Jr extentions?, i am asking this because i have combination of both types of wire hooked up, all i have to do is to route them to the "Y" harness and in to RX.

Now since i have all fight control surfaces hooked up, i need to know where should i mount throttle servo?, should it be under tune pipe in the forward fuselage joint area or some where else? and same will go for inflight fue mixture valve and its servo....

For elevators i am using Carbon 1/8" rods combined with metal rods on each end....



Sammy

RE: Regal Eagle - A Journey
 

The stock Futaba/JR servo extensions are OK for your application.

My Byron powered RE had the throttle and mixture servos in the fuse compartment behind the nose gear. The inflight needle was mounted near the engine. I think I made a little bracket that mounted to 2 of the engine mount bolts. Make sure it is solidly mounted because anything that comes loose is going through the fan for sure.[:o]

RE: Regal Eagle - A Journey
 

Now time has come to install battery and RX into the F15, i am looking to get 6V 5 cell JR 1400 Milliamp battery for this, I bought Hitec Electron 6 Rx for this jet last fall, its feather light RX, i dont want to use regular Futaba FP-127 RX just to save some weight, I am hoping this Electron 6 will be ok Rx for this jet since i dont have any PCM rx as yet....Any thoughts on my RX....



Sammy

RE: Regal Eagle - A Journey
 

Its as good as any other Hitec.

bob

RE: Regal Eagle - A Journey
 

Sammy

What is happening with your Regal Eagle Project? Haven't heard anything in a while.

bob branch

RE: Regal Eagle - A Journey
 

Hi Guys,

I have been out of touch for little while now, i was have some medical problems which kept me away from working on my jet, i am still going through my allergies but now i will get back into it. I took the F15 to leamington and Jim Brown looked at it and wasen't really excited about it, he recommended me few more changes to do which i am starting to do now, i will have make new former and make it part of structure to hold the lower mount of the shroud, then i still have to do my wiring and add nose wheel steering servo to nose gear.

I am very optamistic on this jet and i am sure she will fly ok, but we have to see as i really can't say much about it. I am planning today to get the former cut out of Sig's 1/4" aircraft plywood and start from there.....


Regards,
Sammy

RE: Regal Eagle - A Journey
 

Hey, Sammy! You must be a skip & hop away from Bob Parkinson's. Perhaps he cn also give you some help?

Phil

RE: Regal Eagle - A Journey
 

Hi Philip,

Actually he is helping me where ever he can, since this is not his own design and is kock off copy of his jet, he really is restricted and can't help all the way in my case...


Regards,
Sammy

RE: Regal Eagle - A Journey
 

Good to hear you are back on your feet Sammy. Looking forward to hearing your results. There is a BP F-18 being built by another builder and he will start a thread when he is a little further on. I have talked to him by PM.

bob branch

RE: Regal Eagle - A Journey
 

Guys,

I have got very much frustrated from this model, i have done lots of structural mods and it still needs more work, i just can't be bothered with this jet anymore and have decided to decommission this jet for good now, i don't have faith in this airframe anymore and i don't want to invest more time/ money into it anymore.....As its faulty a model, i have decided not to sell it to anyone as i don't want other modeller/s to go through what i went through with this thing....

After relaxing with sometime off from jets, i will get myself NIB complete jet kit and build it myself, this way i will know everything about it from start and i won't be dealing with someone'e partial built model again....



Sammy

RE: Regal Eagle - A Journey
 

Sammy

Sorry to hear that about your project. Its a shame that people copy a good kit like Bob Parkinsons and do it so poorly that the plane is not salvagable. I have noticed in other threads in this forum that it has happened with other jet kits as well. Nothing more dissappointing to modlers. I attended teh Michigan Jets Rallye last weekend and everyone I spoke to had good stuff to say about Bob's Kits and how they flew. It will be winter before I can build mine. The world just got in the way with the house addition this winter/spring/ and now summer. Ugh!

Good Luck and sweet flying

bob branch

RE: Regal Eagle - A Journey
 

Has anybody built Bob's Barracuda, if so is it constructed like the Eagle.

RE: Regal Eagle - A Journey
 

Oh yes, just like F-15 just body little more narrow , but the wings on the bottom . Use a outlet little less then 4" .
Around there. Keep it lite......

RE: Regal Eagle - A Journey
 

Thanks Angel have you flown it off grass if so whats the takeoff distance. What type of speed did you get and what Fan/engine combo did you use. The rifle I got from you is next to be finished looks like a real easy finish, I have a 60LX waiting to go in it.

RE: Regal Eagle - A Journey
 

Yes , I think it was about 200ft. but use 3" wheels main and 2-3/4" front.
It does help on grass. Around 125ft on hardtop, smaller wheels. For the speed
around 150mph with outlet size of around 3-3/4" on a Dynamax OS .91.

What are you using ?

Send me pic, when your done. its for album

RE: Regal Eagle - A Journey
 

Thanks for the info Angel, I will be using a Dynamax and OS91 also. I will send pictures of this and also of the Rifle when I'm done.

RE: Regal Eagle - A Journey
 

ive thought about buying the RE, however a few things bother me, maybe yall could help. I want to build it pretty close to the real deal, although its not a true scale, i want to built it kinda like one. Im going with a tractor ducted set up, inverted engine, for scale of a speed brake if possible. I want to build it with the elevators fully functional, can the fus and elevator be beefed up back there for this??? Im going to make the inlets drop that 35-45 degrees for the highspeed looks. and of course retracts. Since i work on the real deal, its easy to make a scale one:D thanks for any imput!!!!! D.R.