RadJet from the KING! - Page 11 - RC Groups
Shop our Airplanes Products Drone Products Sales
Thread Tools
Jan 07, 2012, 09:23 PM
MAAC SAVED RC!!
vettster's Avatar
I dunn know.....i think you get more speed out of the 6x4 since your motor sounds as though its hitting it max rpm. Im going to try the larger prop if I ever get around to flying in the winter.
Sign up now
to remove ads between posts
Jan 07, 2012, 11:29 PM
Registered User
choopi's Avatar
Quote:
Originally Posted by vettster
I dunn know.....i think you get more speed out of the 6x4 since your motor sounds as though its hitting it max rpm. Im going to try the larger prop if I ever get around to flying in the winter.
I know! I did try once a bigger prop, but for some reason, it almost sound like it was loading the motor to much like it was bugging, I will have to plug my Eagletree to see.

An other quick clip of the Radjet:
Hobyking RADJET Jan 2012 (2 min 46 sec)
Jan 08, 2012, 12:11 AM
MAAC SAVED RC!!
vettster's Avatar
Maybe 6x3
Jan 08, 2012, 02:09 AM
Registered User
The_RattleSnake's Avatar
Quote:
Originally Posted by vettster
copied from my video,...

I run the Turnigy 2836 3700kv on my Model Engines FOX that I converted to RC.

Using a 1000mah 3s and an apc 4.5x4.1 it pulls 41 amps @ a bit over 30k rpm.

Ive had the maiden flight but not a speed run yet, Im hoping pass 150 kph.

143kph is my best so far with the old version of the fox.
That was my comment on your video :P

I have been looking on getting something that is fast and reliable.
( The fox is being pushed to 15 times or so its origional speed and I don't expect it to last long)

Was looking at This thing or a parkjet (Mini Skyfun) or the blue fiberglass pylon racer from HK.

do you guys think this one would be the best way to go ? I have a Turnigy 2836 2350kv that I was planning on running on 4s in it with a apc 5x5 prop
or I could put the 2836 3700 kv in it on 3s.
Jan 08, 2012, 05:35 AM
Registered User
unisev's Avatar
Quote:
Originally Posted by vettster
I think its 4.5x4.5 but the guys here are useing 6x4
Thank you guy !
I think I'll buy a 5x5
Jan 08, 2012, 09:48 AM
Registered User
choopi's Avatar
Quote:
Originally Posted by The_RattleSnake
That was my comment on your video :P

I have been looking on getting something that is fast and reliable.
( The fox is being pushed to 15 times or so its origional speed and I don't expect it to last long)

Was looking at This thing or a parkjet (Mini Skyfun) or the blue fiberglass pylon racer from HK.

do you guys think this one would be the best way to go ? I have a Turnigy 2836 2350kv that I was planning on running on 4s in it with a apc 5x5 prop
or I could put the 2836 3700 kv in it on 3s.

I don't know but the shaft will have to be move on the 2836. If you use this one it's 2200kv and it work on 4s and the shaft is the right way: http://www.hobbyking.com/hobbyking/s...dproduct=12919
Jan 09, 2012, 06:52 AM
Registered User
The_RattleSnake's Avatar
Quote:
Originally Posted by choopi
I don't know but the shaft will have to be move on the 2836. If you use this one it's 2200kv and it work on 4s and the shaft is the right way: http://www.hobbyking.com/hobbyking/s...dproduct=12919
I already have the 2836 2350kv and 3700kv versions.
But that is a nice ( and very cheap ) Motor.

Its not hard to swap the shaft on the 2836 motors.
I did a step by step vid here:

Brushless Motor, Shaft / Pusher Conversion (5 min 47 sec)
Jan 09, 2012, 07:02 AM
Registered User
choopi's Avatar
Nice!
Jan 10, 2012, 10:25 AM
Rookie
planex's Avatar
Quote:
Originally Posted by choopi
I don't know but the shaft will have to be move on the 2836. If you use this one it's 2200kv and it work on 4s and the shaft is the right way: http://www.hobbyking.com/hobbyking/s...dproduct=12919
Are you sure this motor can take 4s?
It only says 2-3s in the specs?
Jan 10, 2012, 04:55 PM
MAAC SAVED RC!!
vettster's Avatar
Quote:
Originally Posted by planex
Are you sure this motor can take 4s?
It only says 2-3s in the specs?
LOL who cares if it cant. Its only a $4 motor. If it blows up...upgrade to a $13 motor

Ive already had several flights with the stock motor on 4s 2200 and no problems
Jan 10, 2012, 10:30 PM
fly and then fly some more!
nickelbn1's Avatar
subscribed
Jan 11, 2012, 09:11 PM
but sometimes crashes
Vettster, are you sure the rcspeedo app is accurate? I'm curious about the radjet so that's how I came across this thread, but I clocked 269 km/h (167miles/h) on a skyfun this morning and just wanted to know if it's accurate. Have the turnigy 2350 powered by a 4S 2200 running a graupner 6.5x4 speed prop. Pulled 963 watts during ground testing. Graupner props rock! Very smooth props. Wouldn't the radjet be a bit of a flying brick on a 2350 with very little glide?
Jan 11, 2012, 11:06 PM
Registered User
choopi's Avatar
For my experience with RC Speedo, you do sometime get a bad pass, but most the time it's super accurate as I have a GPS(Eagletree) and most the time it is within 1mph accurate. What was the average passes on that particular flight?
Jan 11, 2012, 11:08 PM
MAAC SAVED RC!!
vettster's Avatar
Like Choppi said. But you need to make sure you have the correct temperature inputted.

Other wise....HOLY COW!!
Jan 11, 2012, 11:27 PM
Registered User
choopi's Avatar
Quote:
Originally Posted by vettster
Like Choppi said. But you need to make sure you have the correct temperature inputted.

Other wise....HOLY COW!!
Ya temp is the key, also, how windy was it when you did that pass


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Contest Habu 32 Speed Contest Tumbler Unlimited Class 165.2 keithtsr Electric Ducted Fan Jet Talk 2157 May 22, 2017 01:49 AM
Discussion RadJet from the KING! vettster Foamy EDFs 1 Jun 01, 2014 07:00 PM
Help! New ViperJet From Hobby King dviperjet Electric Ducted Fan Jet Talk 20 Sep 30, 2011 08:04 AM
For Sale orange rx from hobby king and orange satilite from hobby king ZEROSKIN76 Aircraft - General - Radio Equipment (FS/W) 8 Mar 15, 2011 02:41 PM
Sold orange rx from hobby king and orange satilite from hobby king ZEROSKIN76 Aircraft - General - Radio Equipment (FS/W) 4 Feb 21, 2011 01:06 PM