How are you going to do the cooling on the cylinders ? The 500 is notorious for over heating on the rear cylinders ?

There is no problem putting two wires into a pin as long as the sum of the cross sectional area meets the requirements for the pin. Obviously, you will need a pin a size or two larger than the gauge of wire being used, but as long as the sum of the cross sectional areas is within the range of areas specified for the pin, you are good to go.

Hey Doc, any updates?? Hope all is well.

nice video.

Hi, thanks for posting this video. I actually have a BD4 that I've installed a Garmin GPS Nav system in. I have a GN-355 with dual G5's. I'm about to tear my hair out because I can't seem to get my system to calibrate properly. I've don't it more than eight times and every time....even after it says "calibration successful"...the Garmin HSI is anywhere between 3-20 degrees off from my whiskey compass. And before trying to calibrate the Garmin I had just swung the whiskey compass using my airports compass rose. After calibration how closely does your Garmin's compass readout match your whisky compass?

Do you have any details on how you made the controller for the recognition pattern?

Where is your plane located, how do I contact U

nice panel dude!

Hey. Really nice channel. I have a question for you. I have setup G3X with autopilot servos. But when i activate the autopilot on ground like you did on the video, my autopilot servos rotates continuously. Do you have any recommendations?

Do you have a video on the drive system and where to get one?

Nice tks!

BD-5 flat plate drag area can be calculated from top speed, and known horsepower and propeller efficiency. Better yet, and far easier, is from speed and given thrust: BD-5J maximum speed given as 319mph. This calculates to 260.16Lbs/ft^2 of dynamic pressure. Known as "q". [0.5*(Rho*V^2)] Where V is in ft/sec. And 1mph = (22/15)ft/sec. And Rho = 0.002377. Microturbo TRS18-46 has 1,000N max continuous thrust. But actually 1,100N Maximum for a few minutes. This is 247.29lbf. Thrust divided by drag gives 0.9505. Correct it down over 3% to account for compressibility at 0.42 mach. Is 0.923. This is flat plate drag of BD-5J. Easily under the magic 1 square foot. Where q can be greater than thrust. Take flat plate area, Divided by 37.8sqft wing area. Gives 0.0244 drag coefficient. This is beliveable, as Vans RV-3s which are aluminum single seat centerline seating airplanes have a similar CD0min around 0.022-0.024. This 2.4 square feet is probably at maximum lift over drag speed, where induced drag makes up half of the drag (doubles the drag). And there is extra interference drag also.

Sir, I commend your work and dedication. With respect to the cooling; may I recommend a review of NACA ARR E4E31. Unless you aim those engine exhaust tubes down the centre of the exhaust duct you have only half of the cooling system Jim Bede intended to have for the BD5.

Are you going to use the pbs engine?

You know the Garmin screens are good, when they are full of spit and fingerprints….

Are you OK? It is now almost Thanksgiving a year later... Geese, hope your health is holding up and a new video comes soon. Wishing for good news...

Thank you.

I’m anxiously waiting for an update. Coming soon?

Not being able to open the canopy from outside is definitely a safety issue that most of the builders don't consider. People on the ground coming to your rescue are not going to have an ax with them unless you are super fortunate. You are correct to be thinking about how to implement that feature.

Sep 2023 So how is the engine install coming along ?

I know this is 2 years old but I was hoping you might be able to tell me what the measurement is from the top of your head to the top of the helmet? Any info would be greatly appreciated. Thank you.

Thanks for posting. How much does it weigh?

Thank you for your videos. Can you please show us the mechanism of opening and closing of BD5 landing gear ?

Good video

Very cool! I have a BD-5 project now myself! Long way to go, lol

Here we are in May of 2023, hoping with the warmer season you again make progress on the build.

Enjoy watching your work. Nice to see someone that pays attention to details. A true craftsman.

Looking forward to see you back on with more progress. Nice work.

I've heard different opinions on the force required to pull the gear up. Do you have an opinion of that?

I just found your video. I am the major builder (of several previous builders/owners) of your airplane. Great work, I will be watching your progress to first flight.

How you making out? Inquiring minds want to know. 😁

Looking forward to the next video.

Thanks for sharing.

Wait it's not a jet now.....

My father and I built a BD-5B in the early 70's. The plane was finished except for the engine installation. Much to my dismay, he sold it while I was on active duty to someone in the Tri-Cites, Wa. I am now flying an Aeriane Swift and plan to replace the Solo engine currently in it with a ZDZ 360B4-J.

Glad to see progress! and they look beautiful!

Hi Zane, Aaron Oswald - N1734A , Nice Job....., Can't wait to hear the Engine Running

How many horsepower does this engine produce?

I have never built a plane, my concern is the engine mounts. Will they not pass the engine vibration to the body and in the future perhaps create stress or cracks?

Glad to see you posting again.

Great video! I installed Garmin G3X GDU470 10" display, G5 and 507 auto pilot last Winter in my RV7A by myself. Feel free to contact me if I can help you.

You are living the dream of many, here watching you... Keep it up!

That is beautiful craftsmanship! I hope that engine works, but I can't see how it's going to give you the torque or reliability you're going to need. It's going to be screaming.

Thanks for your videos. Can you please show us the landing gear mechanism (front on and rear) and how it works.

Excellent as always! When do you think a test flight will occur?

It is great to see progress so quickly after the last post ! Keep up the good work !!

Been wondering... happy to see an update👍👍

Looking forward to the next installment.

Well done. Looking forward to the next installment.

Oh man I'm so jealous of the BD-5, I'm building a Kolb Mark 3 right now "mainly because it has folding wings and fits in a box trailer. Can you share how you wired all this up, would be a perfect setup for my plane. Thank you!