What is this plane?

[ikem]

I found a plane for $100 on a local swap site, but before looking into it with the seller, what do you guys know about it.

This would be my first gas plane. It states it is a OS 91 4 stroke, are there any problems with this motor?

He flew it this last summer, so I would assume it is all in working order.

It will come with a Futaba Conquest, that I will switch out for my 2.4 system, and probably switch out the servos if they are a little older.

It is a 72 inch, 4 channel.

 

[willsonman]

Not sure of the plane but that is one nice nitro motor. Its not gas, but they are very nice motors. Check servos with a tester, Check out hinging. Look for cracks below the covering. Check for brittle wood that was not effectively treated to prevent fuel rot. Keep the Conquest. Vintage radios are super cool.

 

[roversgonemad]

The engine alone is worth the asking price. That's about what I have been paying for used OS .91s. As long as it has good compression, the engine is a real runner. Bear in mind, if you do not already fly glow, you are probably looking at another $100-150 in accessories to support glow; glow plug heater, a pump, a starter, a battery to run the starter, etc. Much of that will be a one time purchase. I love flying glow, but that is what I started with many years ago.

Edit: I wouldn't worry about the servos. I have an early 90's Avistar with original entry level Futaba servos, and no issues at all...

 

[ikem]

I have been looking to get into a gas/nitro for some flying, but after a co worker showed me this ad, I was really interested.

Guy contacted me and I am second in line, but if that guy doesn't call, I can go see it tomorrow.

Thanks, for the tips, I really hope I can get this.. do any repairs and upgrades and get it in the air this spring.

Mike

 

[Basscor]

Looks to me like a Sig Four-Star. Good flying plane from what I have seen at the local field. Likes to fly on the faster side, and can do aerobatics really well, not 3D well, but sport/scale well.

 

[ikem]

Looks to me like a Sig Four-Star. Good flying plane from what I have seen at the local field. Likes to fly on the faster side, and can do aerobatics really well, not 3D well, but sport/scale well.

Sweet. Thanks! I don't need 3d flying.

 

[roversgonemad]

The wing tips, turtle deck, and canopy are wrong for a Four Star. The four star has a squared off wing tips and a taller canopy/turtle deck. It's likely just another one of the innumerable ARFs out there. The colors kind of make me think it's probably an old offering from Seagull or World Models.... Hard to say, but if the air frame is straight and everything works, it doesn't look like it would be a bad flying plane. Hopefully the first in line guy will insult him with some low-ball offer and you'll end up with it!

 

[ikem]

The wing tips, turtle deck, and canopy are wrong for a Four Star. The four star has a squared off wing tips and a taller canopy/turtle deck. It's likely just another one of the innumerable ARFs out there. The colors kind of make me think it's probably an old offering from Seagull or World Models.... Hard to say, but if the air frame is straight and everything works, it doesn't look like it would be a bad flying plane. Hopefully the first in line guy will insult him with some low-ball offer and you'll end up with it!

yep, i did notice the differences but it gave me a nice starting point on research.

He said if the guy didnt call him before noon tomorrow, I can go look at it.

For the stuff included this is a good deal?

 

[roversgonemad]

Like I said, I have been paying $90-100 for good used OS .91 four strokes, so it's not bad. The classifieds on RC Groups show that is about the going price for that engine, and this one comes with a plane attached!

 

[ikem]

got it today! he had another plane for sale that he threw in. All for $100. it has a Magnum 61 two stroke engine in it with very low run time.

Pics to come!

 

[roversgonemad]

SAWEEETTT!!!!! Another future glow addict!! It's a little messy, but AWESOME!!! 30+ years ago I tried to fly RC with my dad. Neither of us knew how to fly RC... We crashed a few planes and never really mastered it at all. When my last plane was crashed I was on to bigger and better things (so I thought), but the RC itch persisted. I was over 40 when I got back into it, and I started with an FT Old Fogey. It wasn't long before I came across a free glow plane, and I was hooked all over again on the smells and sounds of glow exhaust, just like when I was a kid; oh the memories. Then I got lucky and got some free glow equipment from a neighbor. Before too long, I was set up again and streaking through the sky with a screaming glow engine pulling the plane. You must post pictures immediately! I am excited to see the other plane.

I just flew my model tech Magic today. I finally figured out how to get it to flat spin, and man does it ever flat spin!!

 

[ikem]

Finishing up my hobby room, with the basement. New planes just in time!



hmm fpv!

 

[roversgonemad]

That is a SWEET super Chipmunk!! That's a great plane! That thing will scream with the .61 on the nose. I honestly don't recommend FPV unless you have a really good way to isolate the vibration. A two stroke glow engine puts out a lot of vibration. You'd have a LOT of jello in the image, and I'd worry about killing your gear. One thing on glow, it's a good idea to foam wrap stuff to isolate some of the vibes. It's not as important with the 2.4 equipment since they don't have the crystals like the FM gear, but it's still a good idea to limit the vibrations your electronics see. If you haven't opened them up already, you'll see what I mean. Glow isn't smooth and quiet like electric planes. It's a more visceral experience, with a pounding internal combustion engine pulling the plane through the air (insert Tim Allen grunts as needed).

EDIT: Also, make sure the flight batteries are still good. A new $20 receiver pack isn't much when you think about what happens if you lose a plane. You can also run a BEC and use a LiPo to power the radio. I have a glow plane that I run with two 500 mAh 2S lipos and a small BEC.

EDIT2: It's the used glow plane deals like this that get me so excited about used glow planes. I have a line on a Seagull Extra 300 with an OS .91 and a smoke pump for $100. It has servos, but will need flight batteries and a receiver. Pretty sure when tax returns roll around it's going to be mine!! It's not a 3D plane, more of an old school aerobatic plane, but it will be really cool to leave some smoke trails in the sky!!

EDIT3: Can you tell I am excited for you to have some glow planes?? I love glow planes! Still have electrics, but glow is my first love!! sshhhhh, don't tell my wife...:black_eyed:

 

[ikem]

That is a SWEET super Chipmunk!! That's a great plane! That thing will scream with the .61 on the nose. I honestly don't recommend FPV unless you have a really good way to isolate the vibration. A two stroke glow engine puts out a lot of vibration. You'd have a LOT of jello in the image, and I'd worry about killing your gear. One thing on glow, it's a good idea to foam wrap stuff to isolate some of the vibes. It's not as important with the 2.4 equipment since they don't have the crystals like the FM gear, but it's still a good idea to limit the vibrations your electronics see. If you haven't opened them up already, you'll see what I mean. Glow isn't smooth and quiet like electric planes. It's a more visceral experience, with a pounding internal combustion engine pulling the plane through the air (insert Tim Allen grunts as needed).

EDIT: Also, make sure the flight batteries are still good. A new $20 receiver pack isn't much when you think about what happens if you lose a plane. You can also run a BEC and use a LiPo to power the radio. I have a glow plane that I run with two 500 mAh 2S lipos and a small BEC.

EDIT2: It's the used glow plane deals like this that get me so excited about used glow planes. I have a line on a Seagull Extra 300 with an OS .91 and a smoke pump for $100. It has servos, but will need flight batteries and a receiver. Pretty sure when tax returns roll around it's going to be mine!! It's not a 3D plane, more of an old school aerobatic plane, but it will be really cool to leave some smoke trails in the sky!!

EDIT3: Can you tell I am excited for you to have some glow planes?? I love glow planes! Still have electrics, but glow is my first love!! sshhhhh, don't tell my wife...:black_eyed:

I know! I cannot wait for some good weather and getting my glow field kit together.

The yellow plane is ready to go, but the chipmunk needs a throttle servo, and a new rx pack. I will probably switch everything over to LiPos. I have a bunch of 2s 800mah lipos.

Also the chipmunk has retracts, i forgot to say that.

I wasnt going to fly fpv from it i guess, but just record from the cockpit. WOuld be a cool point of view.

 

[ikem]

So I have my glow stuff coming.

Got a Hot Shot 2, some 10%, pump, all that jazz.

But I am wondering about the servos. He flew it fine, but would something like the HiTech HS622HD be better then the Futaba S148?

I have always had great luck with hitechs, but dont know about the older Futabas. I plan on putting in a 5a UBEC, would that be enough for 5 servos?

ALSO, do people run flaperons on nitro? I would assume they work the same, aerodynamically, but I have gotten used to having some sort of flaps on my planes, and I use flaperons on 2 other models.

 

[roversgonemad]

If they all work well I wouldn't worry about those futaba servos. Futaba makes good gear. I've got a plane that's probably over 20 years old and still has original entry level futaba servos.
As far as the BEC, I think 5A is probably okay. I have been running my old plane with the old futaba servos with a $6 3A BEC I picked up on eBay. That's not to say that's the greatest idea in the world, but it's worked for at least 5 or so gallons of fuel through it.

Here's a video of how I fly it: sorry it's a speck in the sky for so much of the video...

As far as flaperons, why not if you have the channels!

The 10% will be fine, but if you are wanted a bit more punch, higher nitro equals more power! I fly at almost 5000', so 15% is kind of a minimum for me. I do have one old MDS .48 that refuses to run on anything over 10%, so I keep a jug of 10 around. However, when I really want some punch, I have some 27% helicopter fuel!

Edit: here's a video before the rebuild, you can see I am not gentle with it. There are sections of it that are more glue than balsa, but it keeps flying!

 

[ikem]

Thanks, I think I am going to move the S148s into the Chipmunk, get that running good, and build up the 91.

He flew the 91 pretty hard, because he said the only thing it didnt do well was knife edge. (he said slim fuselage?). He ran 10% mainly, but 15% when he wanted to push it. I am at 1100ft, so I should be OK with 10%.

If they all work well I wouldn't worry about those futaba servos. Futaba makes good gear. I've got a plane that's probably over 20 years old and still has original entry level futaba servos.
As far as the BEC, I think 5A is probably okay. I have been running my old plane with the old futaba servos with a $6 3A BEC I picked up on eBay. That's not to say that's the greatest idea in the world, but it's worked for at least 5 or so gallons of fuel through it.

 

[ikem]

Found it! It is a Cloud Dancer 60.

 

[Rcgary24]

You have a chance to get either in the air as of yet?

 

[roversgonemad]

I've been wondering the same thing.