Thank you for your comment. Yes, it will be fun for the kids to learn flying skills. I am currently teaching 5 kids to build RC airplanes from laser cut balsa wood Sunbird V2 kits. We have a Real Flight RC simulator for them to practice on also. This is part of EAA Chapter 878's RC Build and Fly 2024 program. There is a 15 part video series "Building the Sunbird V2 powered Glider" on my Channel.

Thank you, the kids have the fuselage almost done except for the covering.

Thanks for your comment.

Thank you for the heart.

@@tomrammel wore welcome 🙏

Thank you for your comment, I am glad the DIY laser cutter video was helpful with your build.

Sorry, But I do not know the NACA airfoil number. You could ask the designer: Leonard Milholland PO Box 747 Brookshire, Texas 77423 (281) 785-3777

The transparent red covering is from HobbyKing. The blue came with the kit (and also some opaque red) China kit and covering. You can get the kit with many different accessories including covering film. Servos, motor, ESC, folding prop. Amazon sells the kit, but I purchased it from AliExpress. Real Hawk store at AliExpress. Thank You for the comment.

If you have time to wait for it to arrive: www.aliexpress.us/item/2251832666002469.html? Or if you want it fast Amazon. Be sure to select the options you want included with the kit. I bought from AliExpress with all options, folding prop, four servos, motor, ESC, and red and blue covering film. Then all that's left to purchase is Lipo battery and radio. (Transmitter and receiver) And charger for the Lipo battery if you don't already own a charger.

Timothy, I ordered it from EBAY (see link below) www.ebay.com/itm/121694987526

Timothy, I ordered it from EBAY (see link below) www.ebay.com/itm/121694987526 Tom

Brayden, Thank you for your kind comment. Good luck with your carb rebuild project.

Sorry about the shaky camera at the beginning of the video. The majority of the video is better as the camera is on a tripod. You can skip the beginning if it bothers you.

@algerc.5492, The saw is AC powered. It uses a hand compact circular saw from PERFORMAX part number 241-0943 5.8 Amp 3500 RPM. Menards Sku # 2410943 cost about $30.

Okay, Thanks for the Tip.

Sorry about that, My Wife was running the video camera and she is not the best at filming. She had a hard time finding the Navigator and I'm not Shure that she understands zooming in and out. I like the beautiful design and the nice lines of the old Jetco Navigator. This scaled up version flies even better than the original 51 inch version.

The file type that you need for a CNC Laser cutter is: Gcode. There are many different CAD or Standalone programs that can either output or convert DXF to Gcode. Do a search on KZfaq for "DXF to GCODE" and follow those instructions.

John, What a great story, Thanks for sharing. I wish that I had saved more of these things. Hind sight is 20 / 20.

It makes a nice handle for the sanding block, that's what.

Maxwell, I am not sure what things you have already tried so I will start from the beginning. First make sure it is a problem with the fuel not getting to the motor, by spraying starting fluid into the intake and see if it fires. If it fires you can continue with the fuel system. If it doesn't fire then troubleshoot the spark/electrical system. OK now assuming that it fires on starting fluid, make sure that the curved tube on the carb connects to an engine crankcase port. This is the pulse that moves the diaphragm back and forth and pumps the fuel (fuel Pump). Assuming you still cant get it to start, connect a separate fuel tank to the carb with known good fuel line and try again. If this still doesn't work then maybe the valves inside the fuel pump part of the carb are not working or got left out accidently when the carb was apart. I hope these suggestions get you running again. Good luck, Tom

@@tomrammel thanks for replying. Initially I got it running by spraying into the intake which prompted fuel flow, but the carb was too dirty to run properly. I've cleaned the tank and have all new fuel filters and have replaced a couple cracked lines, the petcock flows just fine. New plugs and battery as well, killswitch is working properly. When it did run, it cycled water properly as well. As far as I can think, it's the carb but I don't quite understand how they work. I get the concept but I can't seem to fully understand this particular carb

@@maxwellingersoll8046 , The carb is designed for the rough ride of the wave runner which is why the carb doesn't have a float and carb bowl. The fuel pump is built into the carb itself and is the last pieces that go on the round stack of parts and is where the fuel inlet hose connects. One of the layers has flaps/reeds that let fuel in but close to prevent fuel from going back the other way (one way valves). The next section of the stack is the diaphragm that moves back and forth with crankcase pressure pulses. The curved brass connection is where the crankcase pulse hose connects. The next section has a diaphragm with a metal plate attached that has a protrusion that presses on a lever that stops the fuel from going into the fuel metering part of the carb. The final tube on the carb body itself is the return line where unused fuel returns back to the fuel tank. The high and low speed needle valves are just like any other small engine carb.

Thats great to hear. Maybe we should race sometime.

Thanks for your comment, T88 epoxy glue is what most use. just don't mix so much that it starts to harden before it is all used. Hardening epoxy can also make week joints.

Thanks for your comment. Wishing your team good luck at the competition.

Team 5348 DC Chargers

Is your cad public? @@tomrammel

Thank you, that's what we strive for.

The weight for the trap door is on. Is that what you were asking about? Or were you asking about the counter weight for the robot arms?

Your trap door is not the same as you will see on the field. There is a steel counter weight on the back of the trap door.@@tomrammel

Allen key size is 1/4"

Not sure, do you have one of these?

Sorry, I will do a better job filming next time.

Yes it does have a high speed and low speed adjustable jets. plus the crankcase pressure diaphragm fuel pump is built into the carb. On many engines the fuel pump is a separate unit. Fuel pressure regulation is also done with a diaphragm pressure valve instead of a bowl and float like many small engine carbs.

Thanks for the comment. next time I will put the camera overhead. It's 20 degrees Fahrenheit today and the lake is frozen over. (Minnesota)

Get some glow fuel with 35% nitromethane. These small cox engines work best with this higher percentage nitromethane fuel. Also you may have to check the reed valve inside the front of the fuel tank to make sure it is not stuck from sitting for a long time. Make sure the glow cylinder head is glowing orange while the battery is connected. If not you either need a new glow head or the 1.5 Volt battery is week. some times the plastic tube inside the tank with the spring inside can get pluged up with gunk and not allow fuel into the engine. While trying to start the engine prime into the exhaust port with a few drops of fuel. I hope some of this helps, If you still can't get it started try asking some more questions or explain exactly what you are doing to try to start the engine.

thank you much! @@tomrammel

Thanks for the comment, I was going to move the wing back but my Grandson left for his other grandparents. They have more room to fly and I mentioned moving the wing back to them.

Hi Sam, Foam board planes are fast to build but don't last very long. The good thing is that you can build another one quickly. OH and they don't cost very much if you are building from plans.

@@tomrammel yep I finished it last night and it’s ready to fly

@@samuellondke9108 Cool, What airplane did you build? One of the Flite Test planes? from plans or quick build laser cut kits?

Glad you enjoyed it Charles.

Thanks for the tips!

Thank you, we had fun building and flying it.

Thanks for the tips.