Tsunami Build Thread
03-19-2011, 10:15 AM
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RE: Tsunami Build Thread
Glad to help Kirt. The Tsunami is a really fun airplane to fly. I've got a 60-size version on my to-do list. Right now, a Deception build is consuming my time (or at least what time I have after work)..... and the list goes on.
Greg
Greg
03-19-2011, 10:17 AM
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RE: Tsunami Build Thread
Ray,
much appreciated. With those measurements, I'll get the root and tip rib sorted out and then hand things over to Greg for him to loft the remaining ribs in Compufoil.
I got the stab drawn up last night too. Little by little I may just get the plan drafted up in CAD which will then allow us to have a short kit laser cut of we wish. Both a little 15 size Tsunami as well as a 60 size Tsunami appeal to me. I am actually reconsidering my 60 size scalup and thinking that it might be a little undersized. Derek actually had a full 6' (72") span in mind but it never made it to fruition. It's a design which has long wing and stab planform for its size.
A 72" Tsunami would be really cool. I would be inclined on going with an electric motor and retracts to keep the sleek look of the nose intact. An inverted pumped RE engine with pipe down the center of the fuse could be another interesting approach.
David.
much appreciated. With those measurements, I'll get the root and tip rib sorted out and then hand things over to Greg for him to loft the remaining ribs in Compufoil.
I got the stab drawn up last night too. Little by little I may just get the plan drafted up in CAD which will then allow us to have a short kit laser cut of we wish. Both a little 15 size Tsunami as well as a 60 size Tsunami appeal to me. I am actually reconsidering my 60 size scalup and thinking that it might be a little undersized. Derek actually had a full 6' (72") span in mind but it never made it to fruition. It's a design which has long wing and stab planform for its size.
A 72" Tsunami would be really cool. I would be inclined on going with an electric motor and retracts to keep the sleek look of the nose intact. An inverted pumped RE engine with pipe down the center of the fuse could be another interesting approach.
David.
03-19-2011, 10:23 AM
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RE: Tsunami Build Thread
ORIGINAL: ChiefK
I've got a 60-size version on my to-do list.
I've got a 60-size version on my to-do list.
how large would you want it to be? Were you thinking of using the 65" span version?
What engine would you use?
I was considering making the canopy a removable unit like Frank did with his E-Tsunami for access to the radio/battery area. But this would only be necessary on an electric version.
Oh, another idea would be to ask Don or Scott to cut some foam cores for the 60 size version. Anyone prefer foam over wood or vice versa?
What about an airfoiled stab on the 60?
Food for thought...
David.
03-19-2011, 10:44 AM
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RE: Tsunami Build Thread
Ah, ha...! 
Looks like we're working in tandem.
Alright Bob, you're on! Are you going to kit this for the rest of us?
The 40 has a 58.5" span. Do you need a plan? If so, send me a PM with your email address.
Before setting that 60 in stone though, we might want to reconsider scale. Anyone prefer a 6 footer over the 65"? I suspect the 72" would do very nicely on a strong pumped 61 or some 1600W.
David.
Looks like we're working in tandem.
Alright Bob, you're on! Are you going to kit this for the rest of us?
The 40 has a 58.5" span. Do you need a plan? If so, send me a PM with your email address.
Before setting that 60 in stone though, we might want to reconsider scale. Anyone prefer a 6 footer over the 65"? I suspect the 72" would do very nicely on a strong pumped 61 or some 1600W.
David.
03-19-2011, 01:57 PM
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RE: Tsunami Build Thread
David,
I think the 65" version would work really well with my Kraft .61. What do you think? I'd probably use my OS .75 AX in a 72" version. Now that I'm considering the options, I have a J&J Troublemaker that the Kraft should work well in, my OS .75 has no immediate project. I might even install retracts if there is room in the nose for the nose gear. I have a set of Dave Brown retracts also looking for a project. I think I'd prefer a built-up wing with either version.
Greg
I think the 65" version would work really well with my Kraft .61. What do you think? I'd probably use my OS .75 AX in a 72" version. Now that I'm considering the options, I have a J&J Troublemaker that the Kraft should work well in, my OS .75 has no immediate project. I might even install retracts if there is room in the nose for the nose gear. I have a set of Dave Brown retracts also looking for a project. I think I'd prefer a built-up wing with either version.
Greg
03-20-2011, 07:27 PM
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RE: Tsunami Build Thread
Hi David,
Here are the measurements you asked for:
Root rib Le= 1/2", 12mm
Root rib length= 10 1/4", 261mm
Tip rib Le= 3/8", 9mm
Tip rib length= 5 3/4'', 147mm
Te height= 5/16", 8mm
Let me know if you need anything else!
Ray
Here are the measurements you asked for:
Root rib Le= 1/2", 12mm
Root rib length= 10 1/4", 261mm
Tip rib Le= 3/8", 9mm
Tip rib length= 5 3/4'', 147mm
Te height= 5/16", 8mm
Let me know if you need anything else!
Ray
03-21-2011, 03:14 AM
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RE: Tsunami Build Thread
limeybob and others,
I may have moved (Singapore BTW, not Thailand); however, Juno R/C (me) still retains the design rights to the Tsunami 40 & 60. I would kindly ask that you please not use my design in any venture you may be planning. As I stated in post #207 the Tsunami 60 has a wingspan of 72-inches, not 65. If you do produce something that is almost a direct copy of my design, please do not call it the Tsunami 60 for this leads the reader to believe it is the Juno R/C or Direct Connection design, which it is not. Change the name and do not associate Juno R/C or Direct Connection with it in any way. Yes, I do have all my design in AutoCAD format. The design right(s) is(are) for sale. Please e-mail me at [email protected] if are interested.
Derek Staha
Juno R/C
I may have moved (Singapore BTW, not Thailand); however, Juno R/C (me) still retains the design rights to the Tsunami 40 & 60. I would kindly ask that you please not use my design in any venture you may be planning. As I stated in post #207 the Tsunami 60 has a wingspan of 72-inches, not 65. If you do produce something that is almost a direct copy of my design, please do not call it the Tsunami 60 for this leads the reader to believe it is the Juno R/C or Direct Connection design, which it is not. Change the name and do not associate Juno R/C or Direct Connection with it in any way. Yes, I do have all my design in AutoCAD format. The design right(s) is(are) for sale. Please e-mail me at [email protected] if are interested.
Derek Staha
Juno R/C
03-21-2011, 06:58 AM
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RE: Tsunami Build Thread
Bob,
I was going to point out that the Tsunami 60 (as I happened to call it) was a simple scaling concept of a 65" span version that I came up with for my own entertainment purposes. I took a look at your website and the impression I got is that the 60 size model was designed by Dennis Caudill in the early 90's - that is not the case. Dennis' original design of the Tsunami was a 40 size model with a 58.5" wing span.
As Derek points out, you may have to call it something else and change the specs section as well as modify the design in order to not infringe on Juno's rights. Given the rights are for sale, that might perhaps be the right course of action.
I am also pleased that you have chosen this beautiful model and have provided a link to my build thread but I should point out that technically the Tsunami doesn't fall under the RCU category of a classic pattern design. A minor detail.
David.
I was going to point out that the Tsunami 60 (as I happened to call it) was a simple scaling concept of a 65" span version that I came up with for my own entertainment purposes. I took a look at your website and the impression I got is that the 60 size model was designed by Dennis Caudill in the early 90's - that is not the case. Dennis' original design of the Tsunami was a 40 size model with a 58.5" wing span.
As Derek points out, you may have to call it something else and change the specs section as well as modify the design in order to not infringe on Juno's rights. Given the rights are for sale, that might perhaps be the right course of action.
I am also pleased that you have chosen this beautiful model and have provided a link to my build thread but I should point out that technically the Tsunami doesn't fall under the RCU category of a classic pattern design. A minor detail.
David.
03-21-2011, 07:37 AM
#265
RE: Tsunami Build Thread
ORIGINAL: doxilia
Bob,
I was going to point out that the Tsunami 60 (as I happened to call it) was a simple scaling concept of a 65'' span version that I came up with for my own entertainment purposes. I took a look at your website and the impression I got is that the 60 size model was designed by Dennis Caudill in the early 90's - that is not the case. Dennis' original design of the Tsunami was a 40 size model with a 58.5'' wing span.
As Derek points out, you may have to call it something else and change the specs section as well as modify the design in order to not infringe on Juno's rights. Given the rights are for sale, that might perhaps be the right course of action.
I am also pleased that you have chosen this beautiful model and have provided a link to my build thread but I should point out that technically the Tsunami doesn't fall under the RCU category of a classic pattern design. A minor detail.
David.
Bob,
I was going to point out that the Tsunami 60 (as I happened to call it) was a simple scaling concept of a 65'' span version that I came up with for my own entertainment purposes. I took a look at your website and the impression I got is that the 60 size model was designed by Dennis Caudill in the early 90's - that is not the case. Dennis' original design of the Tsunami was a 40 size model with a 58.5'' wing span.
As Derek points out, you may have to call it something else and change the specs section as well as modify the design in order to not infringe on Juno's rights. Given the rights are for sale, that might perhaps be the right course of action.
I am also pleased that you have chosen this beautiful model and have provided a link to my build thread but I should point out that technically the Tsunami doesn't fall under the RCU category of a classic pattern design. A minor detail.
David.
I will take the appropriate action.
Mach-1 anyone, this one I flew in the 80's
bob
03-21-2011, 08:00 AM
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RE: Tsunami Build Thread
Bob,
in my view, the M1 could stand a major internal re-design if it is being "modernized". No change to the lines or moments of course but the use of 3/8" or thicker balsa "slabs" is in my opinion due for an overhaul.
Beautiful model.
David.
in my view, the M1 could stand a major internal re-design if it is being "modernized". No change to the lines or moments of course but the use of 3/8" or thicker balsa "slabs" is in my opinion due for an overhaul.
Beautiful model.
David.
03-21-2011, 08:03 AM
#267
RE: Tsunami Build Thread
ORIGINAL: doxilia
Bob,
in my view, the M1 could stand a major internal re-design if it is being ''modernized''. No change to the lines or moments of course but the use of 3/8'' or thicker balsa ''slabs'' is in my opinion due for an overhaul.
Beautiful model.
David.
Bob,
in my view, the M1 could stand a major internal re-design if it is being ''modernized''. No change to the lines or moments of course but the use of 3/8'' or thicker balsa ''slabs'' is in my opinion due for an overhaul.
Beautiful model.
David.
The 3D is done, so now I can create new fuselage sections.
bob
04-02-2011, 10:18 AM
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RE: Tsunami Build Thread
hey david i have a question. Do you think a scorpion 3008 1220 kv 425 watt motor would be to much for the 75% tsunami or not. I have one laying around that aquired from my dads estate and would love to use it on one these. Phil
04-02-2011, 11:40 AM
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RE: Tsunami Build Thread
Hi Phil,
the 75% Tsunami (named the Vortex by yours truly) is a 43.25" span (40" effective lift span) version. I scaled this one for a 28 mm 300W outrunner.
I'm not familiar with the Scorpion you mention but if it puts out 425W, it would be a tad too powerful for the 75%. I suspect it is also a 35 mm can diameter which would make it hard to fit into the narrow nose.
But there's no problem, we can just scale the plan to suit your motor!
425W would pull a 3 lb Tsunami around nicely. A 48" span (82%) would probably be ideal if built to 48 oz. Here's the plan at that scale.
The spinner and wheels scale somewhere in between 1.75" and 2" in size - I would go with 2" and just modify the spinner ring and front formers slightly to suit.
Hope this helps,
David.
P.S. Did you get a Pico or UFO 66 built? There's now a UFO 77 as well that I had laser cut. 600W would do well on that puppy.
the 75% Tsunami (named the Vortex by yours truly) is a 43.25" span (40" effective lift span) version. I scaled this one for a 28 mm 300W outrunner.
I'm not familiar with the Scorpion you mention but if it puts out 425W, it would be a tad too powerful for the 75%. I suspect it is also a 35 mm can diameter which would make it hard to fit into the narrow nose.
But there's no problem, we can just scale the plan to suit your motor!
425W would pull a 3 lb Tsunami around nicely. A 48" span (82%) would probably be ideal if built to 48 oz. Here's the plan at that scale.
The spinner and wheels scale somewhere in between 1.75" and 2" in size - I would go with 2" and just modify the spinner ring and front formers slightly to suit.
Hope this helps,
David.
P.S. Did you get a Pico or UFO 66 built? There's now a UFO 77 as well that I had laser cut. 600W would do well on that puppy.
04-02-2011, 01:54 PM
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RE: Tsunami Build Thread
no have'nt got to it yet . My dad just recently passed so i had to take care of a bunch of his stuff for a while. I'm back now and wouldn't you know my dad is a modeler too so i just inherited all kinds of new old stuff. Hoping to get to the pico this fall or winter. really want to do that one. I have a full size tsunami that i fly at our field It would be nice to have one to fly around the house. Figured i could throw this together quickly. Phil
04-02-2011, 07:36 PM
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RE: Tsunami Build Thread
Phil,
sorry to hear about your dad. I guess he'll be watching our flying from above now...
For a l'il Tsunami to fly around the house, I'd do a smaller one like the 75% you asked about (it's really 40" span plus wing tips). That's why I wanted to build one in that size. But it only takes about 300W for a 2-2.5 ponder. I bought a pair of low cost 28 mm high kV motors. One of them went into the Pico while the other was needing a home - hence the Vortex.
David.
sorry to hear about your dad. I guess he'll be watching our flying from above now...
For a l'il Tsunami to fly around the house, I'd do a smaller one like the 75% you asked about (it's really 40" span plus wing tips). That's why I wanted to build one in that size. But it only takes about 300W for a 2-2.5 ponder. I bought a pair of low cost 28 mm high kV motors. One of them went into the Pico while the other was needing a home - hence the Vortex.
David.
04-03-2011, 04:24 AM
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RE: Tsunami Build Thread
looks like i'm going to be ordering a couple of 300 watters tgen. Last question are these scaled from the the 40 sized plans? Need to know how much to scale my rib trcings so constuction can commence. Phil
04-03-2011, 04:51 AM
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RE: Tsunami Build Thread
Phil,
yes. The 40 size plan is the only one that I'm aware of. As you can see it has the original markings in the specs section in the bottom right of the plan.
Scalings:
Tsunami 20 (48/58.5 = 82.05%)
Length = 40.75" (Should be 41" but spinner has nose cutoff)
Wing Span = 48.0"
Wing Area = 377 sq in
Stab Span = 20.4"
Spinner & Wheels = 2.00"
Tsunami 10 (43.25/58.5 = 73.93%)
Length = 36.75"
Wing Span = 43.25"
Wing Area = 307 sq in
Stab Span = 18.4"
Spinner & Wheels = 1.75"
The percent scale numbers are the figures you should use to scale the ribs. I plan to omit ribs W6, W8 and W10 from the T10 for a wing with 8 ribs per panel. For the T20 I'd probably go with 9 ribs but spaced differently which would require relofting the ribs or simply band sawing blanks in between root and tip templates and spacing them out evenly.
Also, since the nose rings don't scale to even 1.75" or 2.00" diameters, modify the size of the nose to match that size and obtain the scaling factor increase to augment the width of the formers forward of the wing LE. The additional equivalent height can be added to the bottom of the formers for a slightly less pronounced curve to the top sheet fairing into the spinner but keeping the curvature of the bottom sheeting. The tail of the plane is simply brought together aft of the wing LE former and structured internally as required.
Attached are Greg's ribs for the 74% T10. I'm working on a CAD plan but still a ways to go.
David.
yes. The 40 size plan is the only one that I'm aware of. As you can see it has the original markings in the specs section in the bottom right of the plan.
Scalings:
Tsunami 20 (48/58.5 = 82.05%)
Length = 40.75" (Should be 41" but spinner has nose cutoff)
Wing Span = 48.0"
Wing Area = 377 sq in
Stab Span = 20.4"
Spinner & Wheels = 2.00"
Tsunami 10 (43.25/58.5 = 73.93%)
Length = 36.75"
Wing Span = 43.25"
Wing Area = 307 sq in
Stab Span = 18.4"
Spinner & Wheels = 1.75"
The percent scale numbers are the figures you should use to scale the ribs. I plan to omit ribs W6, W8 and W10 from the T10 for a wing with 8 ribs per panel. For the T20 I'd probably go with 9 ribs but spaced differently which would require relofting the ribs or simply band sawing blanks in between root and tip templates and spacing them out evenly.
Also, since the nose rings don't scale to even 1.75" or 2.00" diameters, modify the size of the nose to match that size and obtain the scaling factor increase to augment the width of the formers forward of the wing LE. The additional equivalent height can be added to the bottom of the formers for a slightly less pronounced curve to the top sheet fairing into the spinner but keeping the curvature of the bottom sheeting. The tail of the plane is simply brought together aft of the wing LE former and structured internally as required.
Attached are Greg's ribs for the 74% T10. I'm working on a CAD plan but still a ways to go.
David.