2018 Flite Test Forum Challenge: WWII Design & Build
- Thread starter rockyboy
- Start date
Question is: Does it need to sink to be considered
I keep pushing my mind around this LPL Flying Sub. I love the look of it. like a flying Manta Ray
I also keep thinking about this plane's design challenges. If I build it I'll want to make it easy to build yet sinkable.
The Numbers... How feasible *is* this... (thank you all for the notes about sinking systems, and the note about signal loss.)
I'm going to use metric here as volume/weight/displacement is VERY easy in metric.
Displacement: 534g
Each foam board displaces 36g of water. My initial design is 4 sheets. (a c-size will take 8 at least)
I will assume the entire plane floods except the cockpit area I would have a watertight container in there.
The size is roughly 6.5x12x5cm or 390 ccm so that means the plane must weigh 534g. (1.2 lbs) for a 3 (4) engine Plane.
Weight: 355 - 560(ish)
5 -9g servos - 45g
4 - 40g motor setups (2205 with 30a ESCs and 5" prop, producing around 1.8kg thrust (for 3 engines)) 120g
8 channel receiver or FC - 10g
4S 1500 - 3500maH battery - 188 - 385g
So I see this as a matter of playing with the WT capsule size VS. Battery or foam load-out. to get things to balance when the plane floods.
Wing loading is 19oz./1.57sf or 12oz.sf That's between glider and a trainer. Add two torpedoes, and now we're talking!
I put an A-size Plan set together.
I plan on building/testing it this week. *should've* cut it out last night. I realized soldering connectors on, and getting the Kalinin K-12 ready for a weekend test is time better spent (for now).
I have reached out to *the* Bob Martin IE www.RC-SUB.com and on Youtube he's RCSubGuy. This guy has a true passion and talent for submarines. He estimates a larger amount than I have to build this as a submerging vessel. (while I'm still trying to see what I can do to mitigate the Costs.) His sites, encouragement knowledge and thorough videos, should help me know how we can manage this. While a bit discouraged by the cost, I think I could set limitations of the vessel and get away with a less costly setup... but I'm not sure.
I think I can get a flying/floating model with plans and article/vid by year end. Just not sure about getting to Full-Montey completed by then.
Question is: If I add this craft, to the List of Projects - does it need to Sink to be considered?
I keep pushing my mind around this LPL Flying Sub. I love the look of it. like a flying Manta Ray
I also keep thinking about this plane's design challenges. If I build it I'll want to make it easy to build yet sinkable.
The Numbers... How feasible *is* this... (thank you all for the notes about sinking systems, and the note about signal loss.)
I'm going to use metric here as volume/weight/displacement is VERY easy in metric.
Displacement: 534g
Each foam board displaces 36g of water. My initial design is 4 sheets. (a c-size will take 8 at least)
I will assume the entire plane floods except the cockpit area I would have a watertight container in there.
The size is roughly 6.5x12x5cm or 390 ccm so that means the plane must weigh 534g. (1.2 lbs) for a 3 (4) engine Plane.
Weight: 355 - 560(ish)
5 -9g servos - 45g
4 - 40g motor setups (2205 with 30a ESCs and 5" prop, producing around 1.8kg thrust (for 3 engines)) 120g
8 channel receiver or FC - 10g
4S 1500 - 3500maH battery - 188 - 385g
So I see this as a matter of playing with the WT capsule size VS. Battery or foam load-out. to get things to balance when the plane floods.
Wing loading is 19oz./1.57sf or 12oz.sf That's between glider and a trainer. Add two torpedoes, and now we're talking!
I put an A-size Plan set together.
I plan on building/testing it this week. *should've* cut it out last night. I realized soldering connectors on, and getting the Kalinin K-12 ready for a weekend test is time better spent (for now).
I have reached out to *the* Bob Martin IE www.RC-SUB.com and on Youtube he's RCSubGuy. This guy has a true passion and talent for submarines. He estimates a larger amount than I have to build this as a submerging vessel. (while I'm still trying to see what I can do to mitigate the Costs.) His sites, encouragement knowledge and thorough videos, should help me know how we can manage this. While a bit discouraged by the cost, I think I could set limitations of the vessel and get away with a less costly setup... but I'm not sure.
I think I can get a flying/floating model with plans and article/vid by year end. Just not sure about getting to Full-Montey completed by then.
Question is: If I add this craft, to the List of Projects - does it need to Sink to be considered?
Michael9865
Elite member
Woohoo! Another Miles aircraft. Welcome.
Awesome!! :applause:
Just drop a message here when you start the build thread so I don't miss it please.
Awesome! :applause:
Why yes, yes you should! :applause:
Come on in - we're glad you are here! :applause:
With regret, Ben and I will withdraw from this...
http://forum.flitetest.com/showthre...-and-Mid7night&p=368599&viewfull=1#post368599
http://forum.flitetest.com/showthre...-and-Mid7night&p=368599&viewfull=1#post368599
Understand the decision, and while I'll not expect to include this project in the scoring part of this years challenge, I'm holding out hope that we'll still see her fly some day.
Dr. Looping Looie
Elite member
Hey guys!
I want to start a project, too.
The Lippisch P13a for team Luftwaffe:
I`m planing to start this project after 8th of August.
I want to build it with the Sea Duck powerpod in the front, which has Dymond GTX motors and Multiplex ESCs on it, because the FT powerpack C was not available in Germany.
Is it ok to use this components, because I just have Sea Duck powerpods?
I`d like to start a threat soon!
I want to start a project, too.
The Lippisch P13a for team Luftwaffe:
I`m planing to start this project after 8th of August.
I want to build it with the Sea Duck powerpod in the front, which has Dymond GTX motors and Multiplex ESCs on it, because the FT powerpack C was not available in Germany.
Is it ok to use this components, because I just have Sea Duck powerpods?
I`d like to start a threat soon!
Hey guys!
I want to start a project, too.
The Lippisch P13a for team Luftwaffe:
I`m planing to start this project after 8th of August.
I want to build it with the Sea Duck powerpod in the front, which has Dymond GTX motors and Multiplex ESCs on it, because the FT powerpack C was not available in Germany.
Is it ok to use this components, because I just have Sea Duck powerpods?
I`d like to start a threat soon!
That looks pretty wacky and cool! Welcome to the challenge, and welcome to the forums too! :applause:
That's just fine for the motors - the idea with the power pack guideline is just to make it easier for other builders to make your design with an easy to find motor - so as long as you're choosing a motor that's similar in power and works where an FT C pack would work, you're doing exactly what was hoped for!
Feel free to start up your build thread and leave a link to it here as soon as you like - no need to actually start designing to start thinking about how it's going to be done and sharing your research and planning. You'll notice that quite a few build threads start like that, including more than a few of mine
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