Knief Racer - New Product & Build

[JustinMader]

The same powertrain on the Mini Q is pulling 380w according to Ecalc. I'm assuming I'll end up with similar speed/efficiency, just with more MAH to burn through.

 

[Wayne]

Sweet! Think the X-ray is a little better at converting watts to speed too.

 

[JustinMader]

Finally got the Xray finished up and several flights logged.

She's a real ripper, dialed in very well. CG is 46mm from LE.

 

[Chris]

How fast do you think it goes? Looks quick!

 

[Red]

Is there a 3rd motor in the nose?

 

[JustinMader]

Is there a 3rd motor in the nose?

Nope, it's a camera connected to the DJI FPV system.

 

[JustinMader]

How fast do you think it goes? Looks quick!

No FC/GPS, but landmarks and google maps math have this at 120mph WOT. Won't be setting any records, but I can run at that speed for 10 solid minutes, which is exhausting .

 

[Chris]

That's AWESOME!!! That must seem like a million mph under the goggles!

 

[Wayne]

Love it!

More stable than the Mini-Q you made?

 

[JustinMader]

Love it!

More stable than the Mini-Q you made?

TBD. I need to take it out to that big school field and fly them back to back. I will say though, the Xray is absolutely on rails right now. I can let go of the sticks with the plane pointed in any direction and it just holds the line, super steady. Moving the CG way back and minimizing the elevator travel really made it fly smooth.

 

[jure]

No FC/GPS, but landmarks and google maps math have this at 120mph WOT. Won't be setting any records, but I can run at that speed for 10 solid minutes, which is exhausting .

must be exhilarating to do an FPV low pass 10 ft above ground at that top speed !

 

[JustinMader]

must be exhilarating to do an FPV low pass 10 ft above ground at that top speed !

Dodging trees, fences, and power lines definitely makes it challenging.

 

[Red]

Nope, it's a camera connected to the DJI FPV system.

Bet that is fun!

 

[Diceman]

Wow! that looks likes a blast! Well done.

Now quads are super excited flying, but this is more unique and very cool!

 

[Wayne]

Love it. Interested in sharing your files? I'd bet others would want to do the same.

 

[Diceman]

Here is my Xray. Slope version. I had to change the paint scheme so I could see it much better with my older eyes. lol. Thing thing is a ripper! Lots of fun! So much easier to fly and see than my D40 was for sure. My first attempt in DS only got to 96mph but it still need to be tuned. It wasn’t the best time to DS, but wanted to try.

 

[MikeRC]

Want to buy mine? I think I spent a night or maybe two building it. So complex. LOL Dude it is 3 servos and a motor mount.

Sure , beats me being lazy .. i have 2 kits of this and still haven't built mine...i would love to buy Bnf , do you do build service .

Looks like you are just an hour away ....

 

[Jarron]

Sure , beats me being lazy .. i have 2 kits of this and still haven't built mine...i would love to buy Bnf , do you do build service .

Looks like you are just an hour away ....

do it, these fly so good

 

[MikeRC]

do it, these fly so good

Are these the favored servos?

KST X08 - 2.8Kg (38.88 oz in), .09-sec - Wide Voltage

KST's new tiny alloy servo, the X08 is just 8mm wide and weighs just 8 grams, but it packs a real punch!

alofthobbies.com

MikeRC

 

[Diceman]

Yes, those are awesome!