Eflight Blanik 4.2m with turbine?
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Eflight Blanik 4.2m with turbine?
I just recently receive my new Eflite Blanik glider. I am interested in putting a turbine on it. The wings on this glider are like surfboards and I know can hold up to aerobatic manuveres gliders are capable of.
I would like to hear from those of you who have put turbines on gliders what could be concerns or areas I shoud pay particular attention to. My biggest hurddle and probably most important is the design of the turbine support modual. I have some ideas on this based on the full scale turbine powered Blanik.
Look forward to the discussion
Scott
I would like to hear from those of you who have put turbines on gliders what could be concerns or areas I shoud pay particular attention to. My biggest hurddle and probably most important is the design of the turbine support modual. I have some ideas on this based on the full scale turbine powered Blanik.
Look forward to the discussion
Scott
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RE: Eflight Blanik 4.2m with turbine?
Will receive my Blanik kit tomorrow.
It weighs 10 kilos (22 lbs) AUW as a glider so i will be interested also to see which turbne would be suitable, maybe Merlin VT80, JC P100.
The fin might need a heat shield ?
Phil.
It weighs 10 kilos (22 lbs) AUW as a glider so i will be interested also to see which turbne would be suitable, maybe Merlin VT80, JC P100.
The fin might need a heat shield ?
Phil.
#5
RE: Eflight Blanik 4.2m with turbine?
P-60 would be perfect, gliders don't need 1:1
Bit of right thrust, bit of up thrust. Heat deflector on the fin LE. Fuel near the balance.
Dw
Bit of right thrust, bit of up thrust. Heat deflector on the fin LE. Fuel near the balance.
Dw
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RE: Eflight Blanik 4.2m with turbine?
I was also going to say, 1:1 on a glider would be silly, remember the lift efficiency these things have including a low drag fuse, even a P20 would assist the glider as it's used to being propelled by the natural thing called wind
I would go for a P60 though, bit of oomph and all that jazz
I would go for a P60 though, bit of oomph and all that jazz
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RE: Eflight Blanik 4.2m with turbine?
I agree 1:2 is nearer the mark. The glider will retain the energy for much longer than a normal scale aircraft. If you fly with 1:1 there is a real danger you would rip the wings off. I would think a wren 44 or kingtech k60 would be good candidates in addition to the p60.
Have a look at this video of my Swift S1 which is 3.2 m and weighs 8 kg wet and is powered with one of my Sprite engines of 3.2 kg thrust.
http://m.youtube.com/#/watch?v=QUv7j...%3DQUv7j_r-L1c
The wing on this glider is very strong and has a solid carbon joiner. As you can see it is no slouch.
John
Have a look at this video of my Swift S1 which is 3.2 m and weighs 8 kg wet and is powered with one of my Sprite engines of 3.2 kg thrust.
http://m.youtube.com/#/watch?v=QUv7j...%3DQUv7j_r-L1c
The wing on this glider is very strong and has a solid carbon joiner. As you can see it is no slouch.
John
#8
RE: Eflight Blanik 4.2m with turbine?
Pablo. If you look at this thread please post pictures. I have been thinking about this ever since this was announced
Inspiration:
http://youtu.be/LaFcFgqpc_Q
Inspiration:
http://youtu.be/LaFcFgqpc_Q
#9
RE: Eflight Blanik 4.2m with turbine?
Here you go. It actually Flys fantastic. I did have to add a nose wheel as the thrust pushes the nose down on takeoff.
I used Evolution engine standoffs for turbine mount.
Pablo
I used Evolution engine standoffs for turbine mount.
Pablo
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RE: Eflight Blanik 4.2m with turbine?
The Bee looks a good choice. I had overlooked that when replying earlier. Interesting you had the same issue about the nose wheel as I had with my Swift. I also had to add a nose wheel to stop the nose burying itself in the ground at takeoff. I have been too lazy to fit a retract mechanism and I know people hate seeing it.
Incidentally the price of this glider is really quite high. I see that there are optional flaps and air brakes. On a plane like this powered by a turbine I would strongly recommend you have them fitted. The glider will come in fast even at a low angle and float on. Our Swift has both flaps and airbrakes and it slows very quickly with the air brakes. In the Uk the Blanic with these options is over £800. Paf-Flugmodelle do a similar size Fox at about the same price as do TopModel in CZech republic and Blue airlines in Germany.
John
Incidentally the price of this glider is really quite high. I see that there are optional flaps and air brakes. On a plane like this powered by a turbine I would strongly recommend you have them fitted. The glider will come in fast even at a low angle and float on. Our Swift has both flaps and airbrakes and it slows very quickly with the air brakes. In the Uk the Blanic with these options is over £800. Paf-Flugmodelle do a similar size Fox at about the same price as do TopModel in CZech republic and Blue airlines in Germany.
John
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RE: Eflight Blanik 4.2m with turbine?
ORIGINAL: Jgwright
The Bee looks a good choice. I had overlooked that when replying earlier. Interesting you had the same issue about the nose wheel as I had with my Swift. I also had to add a nose wheel to stop the nose burying itself in the ground at takeoff. I have been too lazy to fit a retract mechanism and I know people hate seeing it.
Incidentally the price of this glider is really quite high. I see that there are optional flaps and air brakes. On a plane like this powered by a turbine I would strongly recommend you have them fitted. The glider will come in fast even at a low angle and float on. Our Swift has both flaps and airbrakes and it slows very quickly with the air brakes. In the Uk the Blanic with these options is over £800. Paf-Flugmodelle do a similar size Fox at about the same price as do TopModel in CZech republic and Blue airlines in Germany.
John
The Bee looks a good choice. I had overlooked that when replying earlier. Interesting you had the same issue about the nose wheel as I had with my Swift. I also had to add a nose wheel to stop the nose burying itself in the ground at takeoff. I have been too lazy to fit a retract mechanism and I know people hate seeing it.
Incidentally the price of this glider is really quite high. I see that there are optional flaps and air brakes. On a plane like this powered by a turbine I would strongly recommend you have them fitted. The glider will come in fast even at a low angle and float on. Our Swift has both flaps and airbrakes and it slows very quickly with the air brakes. In the Uk the Blanic with these options is over £800. Paf-Flugmodelle do a similar size Fox at about the same price as do TopModel in CZech republic and Blue airlines in Germany.
John
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RE: Eflight Blanik 4.2m with turbine?
I just fitted a fixed wheel, well to the front. It looks ugly and really needs a retractable wheel. Single wheel glider retracts are available in various sizes. Hobbyking do various sizes with and without gear doors and are with electrics. Not sure how strong they are though. This wheel is only used to stop the nose burying itself especially on grass runways. You want it well forward of the main landing wheel. The full size Grob 2 seater has twin wheels and there are others as well. Have a look for inspiration. Have a look at the video link I posted, takeoff is not a problem when you have a second wheel.
We have crow and in my opinion is not enough to make landings easy and spot on. If you are spending all that money on a plane it is a false economy not to fit them.
I shall follow this thread with interest.
John
We have crow and in my opinion is not enough to make landings easy and spot on. If you are spending all that money on a plane it is a false economy not to fit them.
I shall follow this thread with interest.
John
#17
RE: Eflight Blanik 4.2m with turbine?
The Blanik has a bit more drag than your swift. Maybe this is why slower landing speed are achived without the use of airbrake/ spoiler. Honestly there are no issuse with landing or landing speeds. I will try to get some video very soon.
Pablo
Pablo
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RE: Eflight Blanik 4.2m with turbine?
Pablo
Interested to see the video when you have it on line. Perhaps you could post a photo of your nose wheel addition.
John
Interested to see the video when you have it on line. Perhaps you could post a photo of your nose wheel addition.
John
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RE: Eflight Blanik 4.2m with turbine?
Pablo
Do you have some wood built up inside the fuse to support the mount and is there any cross bracing between the root ribs? I am so stoked to do this now that I see it is doable. Also, I would have gone way to big on the turbine. I was thinking K80 but now 60 is looking more resonable. the Super Bee is a nice engine if I could find one at a resonable cost
Scott
Do you have some wood built up inside the fuse to support the mount and is there any cross bracing between the root ribs? I am so stoked to do this now that I see it is doable. Also, I would have gone way to big on the turbine. I was thinking K80 but now 60 is looking more resonable. the Super Bee is a nice engine if I could find one at a resonable cost
Scott
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RE: Eflight Blanik 4.2m with turbine?
Hi Pablo:
I presume the nose wheel is to prevent rash when flying off asphalt and not to increase the angle of incidence of the wing during takeoff. If that is the case, since I would be flying the Blanik 100% off our grass field, I don't think I would need the nose wheel. Right?
Tom
I presume the nose wheel is to prevent rash when flying off asphalt and not to increase the angle of incidence of the wing during takeoff. If that is the case, since I would be flying the Blanik 100% off our grass field, I don't think I would need the nose wheel. Right?
Tom
#24
RE: Eflight Blanik 4.2m with turbine?
ORIGINAL: docgboy
Pablo
Do you have some wood built up inside the fuse to support the mount and is there any cross bracing between the root ribs? I am so stoked to do this now that I see it is doable. Also, I would have gone way to big on the turbine. I was thinking K80 but now 60 is looking more resonable. the Super Bee is a nice engine if I could find one at a resonable cost
Scott
Pablo
Do you have some wood built up inside the fuse to support the mount and is there any cross bracing between the root ribs? I am so stoked to do this now that I see it is doable. Also, I would have gone way to big on the turbine. I was thinking K80 but now 60 is looking more resonable. the Super Bee is a nice engine if I could find one at a resonable cost
Scott
I laid up carbon fiber in that area. Then I use 2"x2" 1/8 ply square glued in under the carbon. The area is Very rigid. Zero flex in that area.
#25
RE: Eflight Blanik 4.2m with turbine?
ORIGINAL: Tom Antlfinger
Hi Pablo:
I presume the nose wheel is to prevent rash when flying off asphalt and not to increase the angle of incidence of the wing during takeoff. If that is the case, since I would be flying the Blanik 100% off our grass field, I don't think I would need the nose wheel. Right?
Tom
Hi Pablo:
I presume the nose wheel is to prevent rash when flying off asphalt and not to increase the angle of incidence of the wing during takeoff. If that is the case, since I would be flying the Blanik 100% off our grass field, I don't think I would need the nose wheel. Right?
Tom
Actually it did help with angle of attack. I use full elevator on takeoff the whole way down the runway. Lifts off gently then starts becoming more responsive to pitch.