alright how about sig 4*40, im building one right now and love the way it is going together. my question is i have a os 40la laying around and will that be enough to power it or should i go ahead and get the os 40 fx. let me know what everyone thinks

It'll fly, but the power won't be there for any vertical maneuvers. If you want vertical go with a 46 something.

I flew mine with a TT GP.42 and it flew great. No it didn't have unlimited vertical, bit it would do some pretty large loops. If you have the LA.40 just laying around doing nothing, try it. If it doesn't work for you, then get a .46 and burn up the sky.

Just finished mine . 5.25 lbs with a st 40 ring with a 11 x 5 master airscrew gets it off the ground in 50' or less. to new to know much more but it flys good you will love it.

I flew mine for about 8 mos with an LA and did not like the plane. Just switched over to a OS46FX...Tuned Pipe too...WOW! I flew it today and it is a blast now. Also, you may want to clip the wings one bay, it flys so much more nimble and yet does not hurt the slow speed characteristics at all.

alright went ahead and got a 46fx for it. now clipping the wing just move one in from the outer rib and cut flush.

Don't overlook a Thunder Tiger Pro-40. Plenty of power. No, it's not as powerful as a OS-46FX, but you might not be looking for that much power either (your decision). The TT Pro 40 gave me really fun performance.

Just a suggestion...

Bob

alright what is the rule of thumb for mounting the engine, for proper space from the firewall to the thrust washer on the engine. the plans and book do not say, most arfs i have put together have been 4 1/2 inches from the firewall to the thrust washer is this the case in kits also anyone with the 4*40 let me know thanks mike

I will look later for you if you are interested, but a friend gave me this advice. Once the airplane is FINISHED, with all the servo's mounted, etc., and otherwise ready to fly, mount the engine with rubber bands. Make sure that the engine has the prop and spinner mounted so that it will be the correect weight.

Then, you can slide the engine assembly back and forth to help balance the model. You still have to put the engine bearers on early in the construction process (when they tell you to do so) so that the side-to-side spacing is correct.

Keep your throttle linkage a little long so that it will still fit if the engine goes way foreward. Trimming it to length afterward won't make a major weight difference.

Bob

I have my engine mounted so that the thrust washer is 1/8th of an inch in front of the fuse sides. It seems to work just fine like that.

Hey N1EDM ... Just noted the P3 in you avitar .... I flew P3s out of Brunswick in the late 70's VP11. Are you from that neck of the woods?

Bo

Yeah, sort of. I flew out of "Weymouth Prep", VP-92 until 1993. Weymouth closed about 1995 and VP-92 is now up in Brunswick. I've got 2500 hours in there. Was a SS1/Acoustic operator

I had an interesting day last week. They had a P-3D (not a misprint) fly in to a local airport. It's a NOAA bird, outfitted for flying into hurricanes. There are only two P-3D's but there are enough similarities with the P-3C that it was deja-vu. I flew P-3A's, B's, and C's.

What did you do on 'em? Maybe the guys on this forum might get a kick out of this discussion..

Bob

armyrcer,

Did you check that link out I PM'd you today? What did you think? Just checking.

yes i was able to check it out, going to do some of those mods while im building, like i said this is my first kit and i love putting it together,probably will not buy another arf for awhile, have a goldberg tiger 2 coming also, to finish up. hey question on the engine mounting my engine when all said and done, it should be centered on the thrustline correct

Well glad you are having fun putting this plane together as I think Sig is the best company so far compared to G/P. My plane went together so fast and was wanting to put together another Sig, but they will come shortly as I have 2 G/P's to put together first. Yeah those mods by Tom Pierce are excellent ideas and really makes the 4* stick out. As far as the mounting of the engine are you gonna do it with a the cowl mod or without? I did mine without the nose job and went with the Thrustline. So I would probably have to tell you that if you are gonna do a nose job to contact Tom or maybe someone else here can answer that question.

Hope this helps out. And enjoy...

Hey Bob .... Were you in the reserves there in weymouth? The only time I saw the A's were when we did a joint excercise. Let's see, I was an electronics tech and flew as in-flight tech on P3B's and extended in VP11 when we upgraded to the C's (P3C update II). So you know, I got to cook allot of dinners, help the ordinance guys throw sonobouys out the back, took allot of pictures, and sat the accoustic seats when the other guys needed some sleep. When I got out I just got my 5000 hour pin.

I was in brunswick from 76 thorough 82. It was during the hight of the cold war, so we kept pretty darn busy. You remember the 15 hour flights, followed by minimum crew rest, and then back out for another burner. I had deployments to Rota Spain, Lajes Azores, Keflavic Iceland, and Bermuda. I also had the oppertunity to hang out in Diego Garcia for a couple of months during the Iran hostage mess ... now that was a thriller! Nothing there but rocks and goats. We spent the whole time doing minimum crew rest flaps doing FLIR surviellance off the coast of Iran.

I have lots of good memories ... we were flying out of Souda Bay Crete and along with a VQ2 EP3 and were the first american aircrew to photograph the russian carrier Minsk when it came out of the Black sea on trials ... they nailed us with a radar lock-on ... you should have heard our non-accoustic operator screaming when he picked that up ... you could actually see the missle turrets on the ship tracking the plane as we went by.

I always wondered when we would fill up the straits of gibraltar with sonobouys. I think that there was a P3 pumping bouys out across the atlantic side everyday for years! Same thing with Charleston harbor ... we would line up 5 P3's side by side and practice mining the harbor. You could see the looks in fishermens faces when they would see that big old plane come by them at 200 feet off the water with the bomb bay doors open!

I would love to hear some of your experiences. I am sure we could go on and on!

Bo

Ok, to get back to your question Armyrcer. Saw a guy last summer with a 4 star with a old half worn out 40 fp. /flew great. The first 4 star I had I put a 46 sf on it, in my opinion it was over kill. How often do you plan on flying wide open? This next one I have a TT42 gp for it, and I'm building light, clipping one bay etc. JT

thanks for all the input on this kit, im looking at the radio installation and if anyone has any pics on their setup could you e-mail me or post them, im going to use the black servo tray that comes with the radio for my three servos. but the way they show the installation they use the round servo horns, im going to use the four arm and of course cut off the ones im not going to use,but they will not fit the way they are pictured. to make sense about it the pushrods in the picture come through the center fuse together, im going to need to make it where the elevator and rudder pushrod come out one close the the left side and the other close to the right if this makes any sense thanks everyone for the help

armyrcer,

give me 10 minutes and will post a few pics of my servo setup

Here as one pic with all the electrical components.

Here is a pic of just the battery receiver area's

HOPE these help and what you are looking for

thanks alot that helped a bunch how much luck do you have with those round servo horns for elevator and rudder, i have never used them but after your pics i just might try it out that way. i looked at your website with your flight box i have just picked up one of those at lowes last night so between the glue drying i work on the flight box, so the post on it today just about that setup on the flight box from billy i think, but thanks again for all your help

Well to be honest with ya never have tried the round servo horns yet, but just wanted to try them out. This plane has not had its maiden yet as I am still practicing on my trainer. Still a kinda newbie with the planes. Yes those Billy Hell flight boxes are the best in my book and will not give that up for no love or money. Please keep us posted on your progress and I am glad I could be of some assistance as I stated earlier I am still in a sense of a newbie. I am glad you could use these pics for some ideas.


Your Welcome and,

Thank YOU RCU for being here so we can all help each other out.

i started in dec with my trainer hobbico superstar selectwent to a tower voyager bottom wing plane and it seemed easier to take off and land it had a untimely death yesterday had a dead stick right off the ground about 20' up nosed over and tore the firewall out put it up till i get around to cutting a new firewall and putting it in place. right now i have a supersportster 40 mrk II from great planes, the sig 4*40, and just bought a carl goldberg tiger II that needs to be sanded and covered from here on rcu. I bought a world models clipped wing cub awhile back and that seems to be everyones plane to fly at the field, the ss mrk II is all complete and ready to fly the weather just has not been good lately to fly that. this sport is alot of fun the wife picks out all the covering now for the planes along with sands them and my daughter goes with me and helps me in the pits we have made it a family thing hope you enjoy it as much as i have anyway thanks for all your help again mike

Lets face it...you are building a trainer, not a missile. I have a 4*40 myself I use to train newcomers. It has a tower hobbies 40 in it and has plenty of power. Anyone who tells you that you need to buy a second engine when you already have a 40 is crazy. If you need a 46fx and a tuned pipe, you probably need a different plane to go along with it.

Mike