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old timers look here must be 50+ years only

Old 02-08-2017, 09:21 AM
  #3976  
FlyerInOKC
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Any of you sages have any experience with large two cycle glow engines? I just impulsed on a Super Tigre S3000 and wanted to know how big a scale airplane it will pull? I know they like low Nitro fuel and can be a bit thirsty still I bought it any way.
Old 02-08-2017, 12:30 PM
  #3977  
rt3232
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Originally Posted by FlyerInOKC
Any of you sages have any experience with large two cycle glow engines? I just impulsed on a Super Tigre S3000 and wanted to know how big a scale airplane it will pull? I know they like low Nitro fuel and can be a bit thirsty still I bought it any way.
OKC One of our club members had one on a T/F Giant scale P-47 and from memory it was about 30lps. and Flew fine except the engine would quit at times hence the bird's demise

Cheers Bob T
Old 02-08-2017, 12:43 PM
  #3978  
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Originally Posted by rt3232
OKC One of our club members had one on a T/F Giant scale P-47 and from memory it was about 30lps. and Flew fine except the engine would quit at times hence the bird's demise

Cheers Bob T
Sounds like an onboard glow plug driver would be in order.
Old 02-08-2017, 12:49 PM
  #3979  
flycatch
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Originally Posted by FlyerInOKC
Any of you sages have any experience with large two cycle glow engines? I just impulsed on a Super Tigre S3000 and wanted to know how big a scale airplane it will pull? I know they like low Nitro fuel and can be a bit thirsty still I bought it any way.
I have an IMP TA152H that weights about 32 lbs wet powered by an OS BGX 3500. It is not a rocket ship airborne but sufficient to fly at scale speeds. This engine is thirsty and I get about 10 minute flight time at 3/4 throttle setting.
Old 02-08-2017, 03:37 PM
  #3980  
Joe Fisher
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This my Biplane with a Super tigre 2300 it has a 16 oz tank and uses about 13 oz in 15 min. I just buy methanol at a race car shop for about $3/ gal. and mix in 10% castor. It has very realistic performance compared to some thing like 180 hp Pitts. With hundreds of flights maybe 3 engine outs. With full throttle top speed in level flight pull up to vertical it looks to me like it runs out at about 300' of climb.

http://www.rcuniverse.com/gallery/ga...6memid%3D79943
Old 02-08-2017, 04:36 PM
  #3981  
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Thanks guys I knew you could help!
Old 02-08-2017, 09:16 PM
  #3982  
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Originally Posted by FlyerInOKC
Sounds like an onboard glow plug driver would be in order.
Or maybe the engine was overheating and a look at the airflow was in order.

However, to revert to your original question, I own the 25cc version of this engine and that was the original engine used in the DB Sport and Scale 1/4 scale SE5. Their 88 inch wingspan Hawker Hurricane also used the same engine.That gives you plenty of scope!

http://www.dbsportandscale.com/
Old 02-09-2017, 07:30 AM
  #3983  
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Originally Posted by Telemaster Sales UK
Or maybe the engine was overheating and a look at the airflow was in order.

However, to revert to your original question, I own the 25cc version of this engine and that was the original engine used in the DB Sport and Scale 1/4 scale SE5. Their 88 inch wingspan Hawker Hurricane also used the same engine.That gives you plenty of scope!

http://www.dbsportandscale.com/
Thank you! I'm looking at an all up weight in the 18 to 20 lbs range so it should do fine.
Old 02-11-2017, 12:59 PM
  #3984  
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OK guys (and gals) I have come across a "Sky Tiger" by CG that was built but not quite finished...and it came with 4 Futaba S48 servos! Check it out:
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Old 02-11-2017, 03:07 PM
  #3985  
rt3232
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Tailskid
Nothing wrong with those OLD servos if they still work, and unless you plan on 3D flying they might be ok.
But if it was me I would go with new analogs, so you can use 6V I still have some and they are just good enough for throttle.

But that is just me.

Cheers Bob T
Old 02-11-2017, 10:09 PM
  #3986  
tailskid
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I was wondering if anyone who collects radios might be interested in these. They look brand new!
Old 02-11-2017, 10:31 PM
  #3987  
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???
Old 02-12-2017, 02:08 AM
  #3988  
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Originally Posted by tailskid
I was wondering if anyone who collects radios might be interested in these. They look brand new!

I have at least 20 of those servos still in service. Why not use them ?
Old 02-12-2017, 07:33 AM
  #3989  
donnyman
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Originally Posted by TomCrump
I have at least 20 of those servos still in service. Why not use them ?
I am with you on this, most of the equiptment i use is The older stuff I don't understand why many wont use older equiptment.

Tailskid
my son flew the sky tiger for years on the very equiptment you mentioned the plane is a real good flying bird ....someone gave you a winner situation check it out and go have some flying fun.
Old 02-12-2017, 08:24 AM
  #3990  
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Other than replacing the connectors on the leads, older servos work fine, as long as you stay at 4.8v. I found they don't work well at 6v. I bought a plane for the engine that I used on my Something Extra and put an OS on it instead, then when I went to fly it, I kept getting servo jitter. Found out the 5 cell pack I was using was causing it, so put in a 4 cell pack and jitter went away. I tried using 4.8v rated servos on another plane that I use LiFe pack for the RX, servos would not work at all unless I used a regulator in the harness.

So if you use older servos, just keep in mind they don't work well with higher voltages.
Old 02-12-2017, 02:49 PM
  #3991  
tailskid
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And to add a cherry on top of the Sunday.....it came with what looks like a NIB K&B 61! Yeah, I would have to change the connectors and remember to use 4.8 volts (I don't think I have any of those right now). Hope to test fly it Monday if the weather cooperates.
Old 02-12-2017, 04:37 PM
  #3992  
BigBirdFlyer
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I think the ringmaster was one of my first built Airplanes for control line. I started flying back in the mid 60s with the Cox .049 plastic control line planes. I got into control line aerobatics with the flying wings and I remember that orange glue that often failed. Silk span and dope was the norm. My first larger plane was the ringmaster of which I crashed and built several. We moved out to the country in South Carolina when I was in the eighth grade. No hobby shop no way to get what I wanted to fly. It wasn't until I was in my late 40s after the military before I got into R/C. For various health reasons (disabled veteran) I have been in and out of the Hobby every since. I still love to fly just don't get to do it as often as I would like to.
Old 02-13-2017, 02:41 AM
  #3993  
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Originally Posted by tailskid
And to add a cherry on top of the Sunday.....it came with what looks like a NIB K&B 61! Yeah, I would have to change the connectors and remember to use 4.8 volts (I don't think I have any of those right now). Hope to test fly it Monday if the weather cooperates.
I'm running a few of my older servos on 6 volt, without issues.
Old 02-13-2017, 04:00 AM
  #3994  
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Just to add to confusion the next generation was the 128 and those seam to work well on 6 V and I still am using those

Cheers Bob T
Old 02-13-2017, 01:37 PM
  #3995  
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​ Didn't the 128 come out before the 148 ? ENJOY !!! RED
Old 02-13-2017, 01:52 PM
  #3996  
tailskid
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When did the 48's come out?
Old 02-13-2017, 04:45 PM
  #3997  
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​ I was thinking the 148's came out in the early 80's . The old monster I started with in the late 70's had 128's I think. Sounds like a question for someone with a younger mind . lol ENJOY !!! RED
Old 02-14-2017, 06:45 AM
  #3998  
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The old stuff was built to last.
Old 02-14-2017, 09:30 AM
  #3999  
donnyman
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Speaking of old stuff.. I built my home over 30 years ago and took extra effort to prevent problems and reduce required maitenance. well three days ago I found a water puddle in the dining room and just knew it was a spill, two days later another puddle a few feet away from the last and the wife said the floor beside the stove was hot .......well today I am faced with a hot water leak under the slab.

I have no intent to tear up my slab so I am considering running a new line thru the attic with some of that plastic hosing or running a pvc line on the outside of the house, I have a lot of pvc pipe so thats the way I will probably go till then the hot water is turned off and the floor is dry.

when in heavens name do I get a chance to just chill out? I have been making repair for the last four months, as soon as I get some stuff cleared from my land a for sale sign goes up.
Old 02-14-2017, 09:34 AM
  #4000  
tailskid
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Sorry to hear about your troubles Donny...but 30 year old ANYTHING will need repairs.....that's why I fly new airplanes - all the others ("Old" ones) usually crash after a month or two . That way I don't have to waste my time on repairs (ha ha).

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