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Old Jan 16, 2012, 02:51 PM
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Looking to maiden the Radjet this weekend, Would have done it Saturday but the black wire on my XT60 to EC3 adaptor came apart. Impressed on the quality you get for ~USD $35.00. Have the stock version. Anything I need to know ? Will start with a 3 cell 1300mah. More concerned about stability than speed at this point.
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Old Jan 16, 2012, 03:32 PM
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just remember to get the battery far enough in front. i used 1300 3s on stock, and i had the battery just peeking out into the cockpit. a little front heavy rather than opposite. deathspins are suppose to be a hassle. though it glides very well, and i think its capable of a nice big engine to power it
Old Jan 16, 2012, 03:49 PM
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"Take Off" eh!
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Quote:
Originally Posted by Oyvind M. View Post
ive flown some flights on my radjet. it weighs 394 grams w/o battery. ive used a 6x56 carbon rod through the wings.
setup is:

turnigy 2836-2350 (2800kv)
4s 1600mah 30c batteries.
turnigy plush 60amp

dont have a watt meter so havent emasured watts.
but i used the rc speedo on my phone, and it was from 170-175 km/h using a APC 6x4E pusher prop
I have the exact same setup coming in the mail

Quote:
Originally Posted by dahawk47 View Post
Looking to maiden the Radjet this weekend, Would have done it Saturday but the black wire on my XT60 to EC3 adaptor came apart. Impressed on the quality you get for ~USD $35.00. Have the stock version. Anything I need to know ? Will start with a 3 cell 1300mah. More concerned about stability than speed at this point.
Remember to set the CG at least 15mm rearward of the stock location. Do this and it will fly very good. Others have gone as far as 20mm. Ill be doing that too on my next flight.
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Old Jan 16, 2012, 05:03 PM
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Mine is on its way. I too will start off stock. Has anybody done radar or doppler on the stock set up.
Old Jan 16, 2012, 05:12 PM
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I didnt doppler it on 3s but your only going to get about 70-80kph out it. 4s is much better. Check out my vid on page 3
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Old Jan 16, 2012, 06:17 PM
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thanks vettster: so how is the stock motor holding up, or did it burn up
Old Jan 16, 2012, 06:24 PM
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only had about 5 flights before winter hit. But with only a 17amp draw.. I dont think its going to die anytime soon
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Old Jan 16, 2012, 06:48 PM
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vettster: I forgot to ask what prop r u running.
Old Jan 16, 2012, 06:50 PM
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RadJet power upgrade and other mods


HobbyKing RadJet Peformance Mods and test flight (10 min 59 sec)


This is a video of my HobbyKing RadJet 800 with a performance power system upgrade and some other mods done to make servicing the plane easier. The power system and mods are all covered at the end of the video.

2826-6 2200kv brushless outrunner

H-King 50A brushless esc

Rhino 1350mAh 30c 3s1p liPo

APC 6x4 sport prop

E-Flite removable stick mount / motor mount

With this setup the plane weighs in at about 16.4oz and is about 15-20mph faster than stock 3s setup. This is for those looking for good all around flight performance fast and slow.
Old Jan 16, 2012, 07:37 PM
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Good to see this plane (and thread) is getting some more followers.

For those flying this for the first time, make sure you have dialled back your rates and or are set up for minimal throws, this thing is crazy twitchy at full rates / throws. Dont ask me how i know.


Quote:
Originally Posted by kiwi_idiot View Post
cheers nogas good to know. Pretty sure I'll run your setup as it seems pretty popular

on the crazier side anyone got near 300k/hr out of these? Any suggestions to get one there?

thanks guys
300kph??? WOW, you really are trying to live up to your name

I've heard of over 200kph with the 2836 but nothing like 300. Good luck, hope you've got good eye sight.



Quote:
Originally Posted by nickelbn1 View Post
I did read the thread. I saw about a 1000mah 4 cell but I didnt see anything about a 1300mah 4 cell. that is why I asked. I would like to know what a good battery would be that wouldnt require a lot of foam removal. some is ok, but I dont want to remove a lot.
The 1300 wont require alot of foam removal. In any case you can counter balance on the rear end if you want to just mount it in the cockpit. I also believe a 1000 3S will balance OK without removing any foam.
Last edited by nogas; Jan 16, 2012 at 07:43 PM.
Old Jan 16, 2012, 08:04 PM
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That was a great video Frank! Though at the 2;05 mark..You said you scooted the CG forward a bit, when I think you meant to say..you moved it Rearward. We've found that 15-20mm rearward of the stock location is best.

Thanks for doing such a great review.

Trevor
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Old Jan 16, 2012, 09:19 PM
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That is what I'm running on mine with 4s 1000mah pack but small prop!
Old Jan 16, 2012, 10:18 PM
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Im telling you choopster.. 6x4 is were the fun is
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Old Jan 16, 2012, 10:35 PM
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Quote:
Originally Posted by vettster View Post
Im telling you choopster.. 6x4 is were the fun is
THatis my next move! 6x4 On 4s, that should move.
Old Jan 17, 2012, 08:57 AM
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Because gas is for BBQ's
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Quote:
Originally Posted by choopi View Post
THatis my next move! 6x4 On 4s, that should move.
Cant wait to see this. Video or it didn't happen.


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