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Search: Posts Made By: Ken Jack
Showing results 1 to 25 of 27
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Forum: Electric RC Jets
04-17-2010, 02:59 PM
Replies: 4
Views: 1,110
Posted By Ken Jack

RE: Trimming and balancing fan???

Hello again Trent, To balance a EDF rotor is very difficult to balance on a dubro prop unit as it only does a static balance ,a dynamic balance is better ,but static balance is better than none.I...
Forum: Electric RC Jets
04-17-2010, 02:12 PM
Replies: 10
Views: 1,380
Posted By Ken Jack

RE: what fan

You could use either motor to convert your Ramtech to edf with good results ,if i had to choose i would go with scorpion 630kv as it is able to handle very high power loads.Good luck with your...
Forum: Electric RC Jets
04-17-2010, 02:40 AM
Replies: 10
Views: 1,380
Posted By Ken Jack

RE: what fan

HI,F-16.I would go for Ramtech As Tony Rossen at Trim Aircraft has got his unit going real good ,and is fitted with special nue motor built in stator body .Regards Ken Jack.
Forum: Electric RC Jets
04-16-2010, 05:08 PM
Replies: 2
Views: 795
Posted By Ken Jack

RE: Ducted Jets

Hi,Scratch,Hobby King has a nice cheap model a HE162 already fitted out except for reciever and lipo for 85 dollars and is well made and finnished.It is a little ugly but different ,it is easy to...
Forum: Electric RC Jets
04-16-2010, 12:26 AM
Replies: 4
Views: 1,110
Posted By Ken Jack

RE: Trimming and balancing fan???

Hi,Trent,It is easy to trim down fan ,well it is easy for me and i have a dynamic balancer so not hard for me also .To trim dia. down to size you will need a metal shaft to hold fan on centre on...
Forum: Electric RC Jets
04-16-2010, 12:06 AM
Replies: 4
Views: 1,096
Posted By Ken Jack

RE: which EDF motors

Hi,Topgun,I believe you are trying to get too much power from your motors . You do not mention amps when you ran motors.When you ran Turnigy motor on 4s battery your motor would try to make...
Forum: Electric RC Jets
02-18-2010, 11:57 PM
Replies: 11
Views: 1,567
Posted By Ken Jack

RE: Choosing a Good EDF

Hi, pilot,I have just purchased a scale HE162 from Hobby King for $84 plus postage which is shoulder wing and makes an easy to fly trainer and is complete less reciever and transmitter.The kit is...
Forum: Electric RC Jets
02-13-2010, 04:33 PM
Replies: 4
Views: 3,038
Posted By Ken Jack

RE: Art-Tech F-18 problems and fixes

Hi,Scotty,To connect3 wires of ecs to motor just connect any way and test fan to see if it runs in correct direction if it runs wrong way reverse any two wires and it will run in correct...
Forum: Electric RC Jets
01-28-2010, 05:46 PM
Replies: 3
Views: 1,046
Posted By Ken Jack

RE: Fill small holes in a foamy

Hi,splais,The best material to fill small and large holes in foam and balsa is Red Devil ONETIME ready mixed filler super light formula .Whitch is made in the USA .Regards Ken Jack
Forum: Electric RC Jets
01-17-2010, 02:53 PM
Replies: 4
Views: 875
Posted By Ken Jack

RE: EDF selection

Hi ,Bea,I looked at fan you have found it is 68mm in dia. and uses a scremer motor which i cannot find on that site,the motor they recomend is 28mm dia. to fit fan and the 1400 they mention i think...
Forum: Electric RC Jets
01-17-2010, 12:45 AM
Replies: 1
Views: 2,098
Posted By Ken Jack

RE: F-111 - EDF Jet Tech Design / Questions / Suggestions

Hi,David,Do you want to make it with two fans or one,do you intend to fold the wings etc.The first thing to do is to decide size of ducted fans ,i would sugest 70mm to 90mm size and then decide size...
Forum: Electric RC Jets
01-17-2010, 12:28 AM
Replies: 4
Views: 875
Posted By Ken Jack

RE: EDF selection

hi ,Bea,I I think you are using a 600 size brushed motor rated at 9.6 volts and you run this motor on 18 volts to get enough power ,but you do not say what size ducted fan you are using.If you can...
Forum: Electric RC Jets
01-09-2010, 02:15 AM
Replies: 14
Views: 2,040
Posted By Ken Jack

RE: NEWBIE - PLEASE HELP TECHNICAL DIFFICULTIES!!!

Hi ,I had a look at what you have on Nitro site and for 130 dollars they give you a lot so it will not be a good unit as a good motor costs more than this whole kit .I recomend you get in touch with...
Forum: Electric RC Jets
01-07-2010, 01:23 AM
Replies: 24
Views: 3,732
Posted By Ken Jack

RE: will twin EDF ?

Hi ,Mal . You need to do some modifcations to the HK 4.5 inch fan and if you go to Hobby King forum under electric ducted fans you will see how i modified them.If you need more info on mods ,and...
Forum: Electric RC Jets
01-04-2010, 04:56 PM
Replies: 24
Views: 3,732
Posted By Ken Jack

RE: will twin EDF ?

Hi Mal ,Go for it as i have seen very large models powered by ducted fans similar in size as your vulcan.Ihave a 108 inch Horton 229 which is powered by 2 Hobby King 4.5 inch ducted fans .Regards...
Forum: Electric RC Jets
01-03-2010, 03:33 PM
Replies: 24
Views: 3,732
Posted By Ken Jack

RE: will twin EDF ?

Hi,Mal ,I think you have made an error in your question as you probably mean 84 inches long instead of 84 feet long.Also you need to inform us what DF units you intend to use. hope i can help...
Forum: Electric RC Jets
12-31-2009, 12:41 AM
Replies: 2
Views: 2,134
Posted By Ken Jack

RE: starmax he-162

Hi,DRH, I do not know the particular model you have purchased but the he162 is one of my favorite modeles as i have had 2 of them scratch built .The cg should be 25 to 30 % of the mac ,on the 162...
Forum: Electric RC Jets
12-31-2009, 12:20 AM
Replies: 47
Views: 13,555
Posted By Ken Jack

RE: Turbinator-E

Hi,Snappy,I built a Turbiator for a 90 mm fan , model is 130 per cent in size to origonal drawings and has regular spring air retracts and final weight is 4.5 pounds ,so i am sure your retracts will...
Forum: Electric RC Jets
12-05-2009, 02:35 AM
Replies: 6
Views: 1,733
Posted By Ken Jack

RE: CONVERTING DUCTED GAS FAN TO EDF

Hi,Gammby,To do the covertion to electric ducted fan is fairly easy and there are several ways ,you can buy a dynamax electric conversion,or can buy a Jet Hanger hobies fan ready to use,I think they...
Forum: Electric RC Jets
12-05-2009, 02:20 AM
Replies: 2
Views: 941
Posted By Ken Jack

RE: Phoenix Ice Light 50

Hi, silver.When you operate your fan on 3s lipo the rpm of fan isaround 44000 rpm and the amps are in a range the ECS can handle,however when you change to 4s lipo the rpm increase to over 59000...
Forum: Electric RC Jets
10-31-2009, 01:43 AM
Replies: 6
Views: 2,117
Posted By Ken Jack

RE: Heat sink for 45mm inrunner

Hi PT6 pilot.

To drill holes in motor ,I use drills sharpened like sheet metal drills i.e like aspade bit only centre of drill is longer by about 1 mm than tips of the drill. I drill 4 holes...
Forum: Electric RC Jets
10-30-2009, 01:01 AM
Replies: 6
Views: 2,117
Posted By Ken Jack

RE: Heat sink for 45mm inrunner

Hi,Pt6pilot,I have had some success with haoye 5 inch fan powered by kb45 1000kv motor modified with cooling holes in frot & back plates of motor aand a hand made heat sink which also cetres motor...
Forum: RC Jets
12-16-2008, 06:11 AM
Replies: 20
Views: 5,980
Posted By Ken Jack

RE: 2009 Jet events ( Outside the USA)

AUSTRALIA
Bundaberg Aeromodellers Club is hosting "JETS OVER BUNDABERG " on Easter weekend 11th - 12th April 2009 ,
at their Coonarr flying field on Coonarr Road.
Camping is available on the...
Forum: RC Jets
04-19-2008, 04:26 AM
Replies: 9
Views: 2,055
Posted By Ken Jack

RE: Whip Antenna Install

See Thread: Whip antenna for 14 channel Futaba
I can supply design for other type of receivers.
Please contact me, Ken Jack
Forum: RC Jets
04-19-2008, 04:08 AM
Replies: 8
Views: 1,088
Posted By Ken Jack

RE: Whip antenna for 14CH Futaba Rx?? Need help!

Hi Meesh,

I have been experimenting with whip antenna over the last 5 years and have come up with a base loaded whip. The loading coil brings this system into resonance (like a tuned pipe on an...
Showing results 1 to 25 of 27
 
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