JET LEGEND VIPER BUILD THREAD
09-01-2015, 01:16 AM
#1576
I fly off a grass strip about 700 feet long and have usually rotated around halfway or just after. I have a K100 and carry a 20 oz tank in smoke tank position as extra fuel. You could also try a rolling start, so that is to start opening throttle to full before you are lined up for take off, That way your engine is at full when the nose is lined up and you pick up speed quite quick. There is also another viper at my club with a P80 and he uses a little more runway than me but still has no problems.
Jason
Jason
09-01-2015, 03:08 AM
#1578
Join Date: Jan 2007
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I had planned sod farm opertation so runway length was not supposed to be a issue.They are going to harvest the field i normally fly from and they have fertilized they heck out of it.If this does not work today i might have to reconfigure fuel tanks over the winter.
Last edited by barger; 09-01-2015 at 03:11 AM.
09-01-2015, 05:53 PM
#1580
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Success!.....Thank you everyone for help and advice it was a good day
.....Hot and muggy foggy zero wind.Went with Mikes suggestion of empty smoke tanks and Jasons suugestion of a turn at the end to full power.....around 350 feet it rotated with no tip stall then quickly accelerated out. ....What can i say unbelievable jet so fast and agile. A little nose heavy but was expecting that quickly trimmed that out and felt comfortable really quickly.Flap check needs a little more down elevator mixed in trimmed that out and then did some high speed passes ......so exhilarating what a fantastic jet I think on a cooler day i will be able to go with full smoke tanks.Thanks again to all for help with my first turbine model☺ Greg
.....Hot and muggy foggy zero wind.Went with Mikes suggestion of empty smoke tanks and Jasons suugestion of a turn at the end to full power.....around 350 feet it rotated with no tip stall then quickly accelerated out. ....What can i say unbelievable jet so fast and agile. A little nose heavy but was expecting that quickly trimmed that out and felt comfortable really quickly.Flap check needs a little more down elevator mixed in trimmed that out and then did some high speed passes ......so exhilarating what a fantastic jet I think on a cooler day i will be able to go with full smoke tanks.Thanks again to all for help with my first turbine model☺ Greg
Last edited by barger; 09-01-2015 at 07:05 PM.
09-02-2015, 07:16 AM
#1582
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Thank you Jason i had a flameout on short final of the maiden and was able to coast in ok.Checked the history this morning and it said user shutdown so i think what happened i made a rookie mistake from habit of flying other models .What do you do if your coming a little fast with a gas plane ?Trim down the idle and we know what that does on a turbine model.So i will learn from that potentially expensive mistake.Wonder if you can program shutdown to a different. switch.
09-02-2015, 07:06 PM
#1583
Thank you Jason i had a flameout on short final of the maiden and was able to coast in ok.Checked the history this morning and it said user shutdown so i think what happened i made a rookie mistake from habit of flying other models .What do you do if your coming a little fast with a gas plane ?Trim down the idle and we know what that does on a turbine model.So i will learn from that potentially expensive mistake.Wonder if you can program shutdown to a different. switch.
09-02-2015, 07:12 PM
#1585
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Success!.....Thank you everyone for help and advice it was a good day.....Hot and muggy foggy zero wind.Went with Mikes suggestion of empty smoke tanks and Jasons suugestion of a turn at the end to full power.....around 350 feet it rotated with no tip stall then quickly accelerated out. ....What can i say unbelievable jet so fast and agile. A little nose heavy but was expecting that quickly trimmed that out and felt comfortable really quickly.Flap check needs a little more down elevator mixed in trimmed that out and then did some high speed passes ......so exhilarating what a fantastic jet I think on a cooler day i will be able to go with full smoke tanks.Thanks again to all for help with my first turbine model☺ Greg
.....Hot and muggy foggy zero wind.Went with Mikes suggestion of empty smoke tanks and Jasons suugestion of a turn at the end to full power.....around 350 feet it rotated with no tip stall then quickly accelerated out. ....What can i say unbelievable jet so fast and agile. A little nose heavy but was expecting that quickly trimmed that out and felt comfortable really quickly.Flap check needs a little more down elevator mixed in trimmed that out and then did some high speed passes ......so exhilarating what a fantastic jet I think on a cooler day i will be able to go with full smoke tanks.Thanks again to all for help with my first turbine model☺ GregGreg
09-02-2015, 07:15 PM
#1586
09-02-2015, 07:27 PM
#1587
My Feedback: (11)
Yeah it was pretty minor, I landed a bit hot too of course.
One side locks up the other side only has a bit of friction so will figure it out. The darn screw holding the tire on has stripped on the head so have to tap it out.
I also forgot I fixed one of my struts with care axle oil, it now has tons of stiffness. The other side sags badly, only a fraction of the suspension in it. So when I pull up now I am already in a left turn
I've had this viper nearly 3 years now so its time to do some maintenance on the main struts and brakes.
You going to Route 66 jets?
One side locks up the other side only has a bit of friction so will figure it out. The darn screw holding the tire on has stripped on the head so have to tap it out.
I also forgot I fixed one of my struts with care axle oil, it now has tons of stiffness. The other side sags badly, only a fraction of the suspension in it. So when I pull up now I am already in a left turn
I've had this viper nearly 3 years now so its time to do some maintenance on the main struts and brakes.
You going to Route 66 jets?
09-02-2015, 07:34 PM
#1588
Yeah it was pretty minor, I landed a bit hot too of course.
One side locks up the other side only has a bit of friction so will figure it out. The darn screw holding the tire on has stripped on the head so have to tap it out.
I also forgot I fixed one of my struts with care axle oil, it now has tons of stiffness. The other side sags badly, only a fraction of the suspension in it. So when I pull up now I am already in a left turn
I've had this viper nearly 3 years now so its time to do some maintenance on the main struts and brakes.
You going to Route 66 jets?
One side locks up the other side only has a bit of friction so will figure it out. The darn screw holding the tire on has stripped on the head so have to tap it out.
I also forgot I fixed one of my struts with care axle oil, it now has tons of stiffness. The other side sags badly, only a fraction of the suspension in it. So when I pull up now I am already in a left turn
I've had this viper nearly 3 years now so its time to do some maintenance on the main struts and brakes.
You going to Route 66 jets?
In October I'm going to be spending a good deal of time in Lincoln and Omaha, getting my business going up there. We'll have to get together and fly some if time and weather permits.
09-02-2015, 08:17 PM
#1589
My Feedback: (11)
Sounds like a plan. I could definitely use some good flying company.
No, I'm not going to make Rt 66 jets. I'm going to take a week and go to Super Jet South later in the month. Our daughter is still living in Georgia, so we can tie in some family time while down there.
In October I'm going to be spending a good deal of time in Lincoln and Omaha, getting my business going up there. We'll have to get together and fly some if time and weather permits.
In October I'm going to be spending a good deal of time in Lincoln and Omaha, getting my business going up there. We'll have to get together and fly some if time and weather permits.
09-02-2015, 11:04 PM
#1590
As long as your viper is still good to go Greg, you will learn to master the landings in no time. I land without brakes 95% of the time and use less strip for landing than i do for take off on my grass strip. Even flying off a sealed strip only the slightest touch of brakes is needed.
Jason
Jason
09-03-2015, 03:33 PM
#1591
Join Date: Jan 2009
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Hello, what batteries capacity are you using for Rx. I am planning to have like 6 flights with 8 minutes per day.
Do you think this jet would flight great ( not to heavy ) with a Cheetah Sp ??
Regards
Erwin
Do you think this jet would flight great ( not to heavy ) with a Cheetah Sp ??
Regards
Erwin
09-03-2015, 06:54 PM
#1593
I think a Cheetah SP is too much. Not that the jet won't handle the speed, but you won't get very long flight times. A Rabbit SP works really well. I can get 180mph full throttle passes on a normal day. Faster if the weather is a little cooler.
I guess if you used the saddle tanks and center tanks for fuel you could get a decent flight time with the Cheetah SP. I know for a fact that the airframe has been tested well in excess of 200mph.
The Cheetah will burn 4 more oz per min. (16 oz per min) compared to the Rabbit SP at 12 oz per min. Rabbit weighs 2.2 lbs and the Cheetah weighs 2.9 lbs.
09-04-2015, 05:44 AM
#1595
09-05-2015, 03:36 PM
#1597
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Not a good day.
I was practicing more knife edge passes without the wingtips. Anyway it snapped out on me - can't remember what exactly what happened, there were two people talking with me at the time). Plane was backlit and too far away - I couldn't get the orientation right. I had almost recovered when it went behind the ridge. When I realized that I couldn't save it, I shut down the turbine. Went down in a cornfield, corn at least 8 feet tall and we had a heck of a time but finally found it. Between the corn stalks and the ground it pretty much destroyed the wings, fuse and canopy :-(. All internals, batteries and electronics okay except a hole in one smoke tank and a small dent in the engine front cover. So I have a message into Jose Melendez about getting another airframe.
Greg
I was practicing more knife edge passes without the wingtips. Anyway it snapped out on me - can't remember what exactly what happened, there were two people talking with me at the time). Plane was backlit and too far away - I couldn't get the orientation right. I had almost recovered when it went behind the ridge. When I realized that I couldn't save it, I shut down the turbine. Went down in a cornfield, corn at least 8 feet tall and we had a heck of a time but finally found it. Between the corn stalks and the ground it pretty much destroyed the wings, fuse and canopy :-(. All internals, batteries and electronics okay except a hole in one smoke tank and a small dent in the engine front cover. So I have a message into Jose Melendez about getting another airframe.
Greg
Last edited by gsmarino2000; 09-05-2015 at 03:39 PM.
09-05-2015, 07:27 PM
#1598
Not a good day.
I was practicing more knife edge passes without the wingtips. Anyway it snapped out on me - can't remember what exactly what happened, there were two people talking with me at the time). Plane was backlit and too far away - I couldn't get the orientation right. I had almost recovered when it went behind the ridge. When I realized that I couldn't save it, I shut down the turbine. Went down in a cornfield, corn at least 8 feet tall and we had a heck of a time but finally found it. Between the corn stalks and the ground it pretty much destroyed the wings, fuse and canopy :-(. All internals, batteries and electronics okay except a hole in one smoke tank and a small dent in the engine front cover. So I have a message into Jose Melendez about getting another airframe.
Greg
I was practicing more knife edge passes without the wingtips. Anyway it snapped out on me - can't remember what exactly what happened, there were two people talking with me at the time). Plane was backlit and too far away - I couldn't get the orientation right. I had almost recovered when it went behind the ridge. When I realized that I couldn't save it, I shut down the turbine. Went down in a cornfield, corn at least 8 feet tall and we had a heck of a time but finally found it. Between the corn stalks and the ground it pretty much destroyed the wings, fuse and canopy :-(. All internals, batteries and electronics okay except a hole in one smoke tank and a small dent in the engine front cover. So I have a message into Jose Melendez about getting another airframe.
Greg
Sorry to hear about your viper. Jose is traveling this weekend and won't be back in the shop until Tuesday. There is a Jolly Roger scheme in stock in California. It's an arf pro wired version and should be available for immediate shipment. If you want to order a replacement air frame, it will have to come from China. I'm sure you'll hear back from Jose on Tuesday.
Again, sorry to hear about your loss.
Paul
09-06-2015, 12:45 PM
#1600
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Not a good day.
I was practicing more knife edge passes without the wingtips. Anyway it snapped out on me - can't remember what exactly what happened, there were two people talking with me at the time). Plane was backlit and too far away - I couldn't get the orientation right. I had almost recovered when it went behind the ridge. When I realized that I couldn't save it, I shut down the turbine. Went down in a cornfield, corn at least 8 feet tall and we had a heck of a time but finally found it. Between the corn stalks and the ground it pretty much destroyed the wings, fuse and canopy :-(. All internals, batteries and electronics okay except a hole in one smoke tank and a small dent in the engine front cover. So I have a message into Jose Melendez about getting another airframe.
Greg
I was practicing more knife edge passes without the wingtips. Anyway it snapped out on me - can't remember what exactly what happened, there were two people talking with me at the time). Plane was backlit and too far away - I couldn't get the orientation right. I had almost recovered when it went behind the ridge. When I realized that I couldn't save it, I shut down the turbine. Went down in a cornfield, corn at least 8 feet tall and we had a heck of a time but finally found it. Between the corn stalks and the ground it pretty much destroyed the wings, fuse and canopy :-(. All internals, batteries and electronics okay except a hole in one smoke tank and a small dent in the engine front cover. So I have a message into Jose Melendez about getting another airframe.
Greg