6s Stupid Fast -HobbyKing EFXtra - 140mph?

[@flipfpv]

That's awesome haha. I bought one of these planes a few years ago with the intention of adding DJI FPV to it but it's just been sitting in the box. This gives me some motivation to finally put it together and fly it. IDK about going 6S on mine but man that would be a wild FPV ride lol

[@BillCranford]

Put it together! I flew this on 4s twice and it’s still pretty fast. This airframe glides really well and true. I imagine it would be great FPV 3 or 4s.

[@cadbuildflyrc3784]

Wow, that plane is fast!

[@BillCranford]

I’ll fit my skyRC gps in it next time 😁

[@paulkrapp]

If you had telemetry or a radar gun, you may be surprised! In my opinion, that is faster than 140 mph. Back in the early 1990s, my brother designed a foam/balsa plane powered by a Fox .36 glow engine running a 9X8 prop. Your plane appears to be going at least as fast as ours and our plane did 150 mph.

[@BillCranford]

Thanks! I do have a skyRC gps unit I plan to put in it. There’s no room in the battery bay so I’ll have to take the wing off and tuck it inside the rear of the fuselage. I was being conservative with my guess, I agree it’s probably closer to 150mph.

[@BillCranford]

kzbin.info/www/bejne/mIKzh5JoZ6iYgtEsi=h3J3gXcSvVuAPcgn My goblin recorded 139mph setup similar having a 20amp lower esc and the motor about 400kv lower

[@paulkrapp]

@@BillCranford 😎👍🛩

[@DaveGrennan]

I have a similar setup. Except on 4S, 7x6 prop, no sure of the motor, think it's around 1900kv. IIRC I clocked mine on GPS at 163mph (263kph) in a dive with a good tailwind. I would say yours is of similar speed. Ridiculously fast. I think yours is a lot faster than 140mph.

[@TDSgeek]

Looked about 150 to 160 to me. I have a v1200 and that looked like the 164 I get out of my stock v1200 with similar battery

[@BillCranford]

Nice 👍 I’ll get a gps reading next time

[@Royshanger]

It is pretty much an Eflite V 1200. With no gear

[@BillCranford]

Speed wise yeah probably. The v1200 has a swept wing and other obvious differences like flaps and retracts

[@Royshanger]

@@BillCranford Just the same type of speed demon.

[@redwineisfine]

V900, on 4s

[@Royshanger]

@@redwineisfine The V 1200 will fly on 4S as well. But it only does 120 and 4S

[@redwineisfine]

@@Royshanger sure does, but v900 on 4s is about 140mph

[@inigohierroribo4544]

Hi guys, just got this plane and cant love it more....But....landing....dont you brake the prop...? What about using folding prop....? Has anyone tried it?? Thanks for posting...😊

[@BillCranford]

Once in a while you’ll break a prop. Glide in for a soft landing and most times it’s fine. Personally I wouldn’t trust a folding prop used on gliders at this speed/ rpm.

[@inigohierroribo4544]

Finally I was forced😂 to use a folding prop...It performs PRFKT....😅

[@alexyanguas2950]

My EFXtra on 6S and 6x5.5 APC reach 250 Km/h.

[@LICobra]

Nice...speed on 6S. I fly mine on stock motor 4S with a 7X7 aeronaut prop and in level flight it's just under 120, and I thought that was fast.

[@BillCranford]

Sweet! I got 123mph on 4s 7x6 prop but that was a huge dive from 400’. 143mph with a 7x6 is actually too much for this airframe. Thanks for watching 😁✈️

[@toolbaggers]

Try a 7x10 APC

[@BillCranford]

That’s asking for trouble this 7x6 is already too much for the airframe

[@franks456]

Stock motor?

[@BillCranford]

Yup!