RE: Hobbyking BD5 for Jetcat P20
[quote]ORIGINAL: drdoom Yeah I know, Their are people who want to change the name to Hobby Ding. I can fix it my self. [/quote] Hobby Ding ... V Funny ... [:D] Scott.
Posted on: 9/14/2012 10:06 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11228428

RE: JAS-39 Gripen Owners/Build Thread
Alasdair, May possibly be attending Elvington, but not with the Gripen .... It needs replacement Pins on the retracts, I had Titianium pins sorted, but they seem to be worse than the Hardened steel ones ... If I go Ill take my Starfighter .. I had to remount the steering servo to make room for the trailing link but nothing to difficult, it wasnt for the shockingly poor quality of the Skymaster retracts this model would have had so many more flights ... I had a mate make my one, he did and ace job .... £35 including the wheel! One of it flying with the old leg ... just to prove to myself it does fly ... Scott.
Posted on: 9/6/2012 12:56 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11219815

RE: JAS-39 Gripen Owners/Build Thread
Alasdair, I had numerious issues with my gripen noseleg ....I too substituted the long spindley nose leg for a trailing link version that is more robust. I was having issues with mine just going over rough concrete / tarmac joins and small grass tuffts ... the last straw was an off rough experience after a fast taxi back that bent pin .. I would change it ... mines 23lbs wet ... Scott.
Posted on: 9/6/2012 12:12 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11219760

Wish I had the plan for this ...
I wish I had plans for this one .... Amazing ... [youtube]http://www.youtube.com/watch?v=rGALfBuKbWc&feature=youtube_gdata_player[/youtube] If anybody has any advice on building something like this, possible half the size get in touch ... I have a spare AMT 20lber [:D] Scott.
Posted on: 9/1/2012 2:42 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11213727

RE: The New JR XG 11 Transmitter DMSS
We have a club member with one ... he changed after a period of massive attrition along with a massive exodus from his spektrum stuff ... he’s been using for a couple of months now and loves it ... the bind / rebind is instant - I use fasst but was very impressed with the look and the functionality and it had the same quality feel as my old 10x. If I were to change I would definitely consider the new JR DMSS ... Scott.
Posted on: 8/27/2012 10:58 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11208600

RE: Avonds F104G Starfighter build thread.
Congrats .... try and get some in flight pictures eh? and some on the landing if poss .... [;)] I flew mine 4 times at the BMFA Nationals showline this August bank holiday seem to go down quite well against far larger expensive models ... Im chuffed [:)] Scott.
Posted on: 8/27/2012 11:20 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11207839

RE: O rings for AMT Mercury
My local contact at Wren Uk ordered them from there source... as a one of favour Scott
Posted on: 8/14/2012 2:13 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11193448

RE: O rings for AMT Mercury
The correct type of bearing is D6900 (10 x 22 x 6) Have you got it apart yet? Ive changed the bearings in mine with help of a local specialist ... Scott.
Posted on: 8/14/2012 12:17 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11193299

RE: Old F-104+Kingtech K140F=A dream come true
Nice mate, you must be very pround ... I get great satisfaction flying my 104 infront of crowds .. well done! Scott.
Posted on: 8/13/2012 11:31 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11192606

RE: Savox Servos
Ive had a couple of 1256's on the tails of my Avonds F15 .... loads and loads of flights .... No problems ... Scott.
Posted on: 8/13/2012 9:26 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11191633

RE: CofG location on big model Concordes
Ive built a couple of edf and foamies and the CG is about 50% of the total length on them .... Scott.
Posted on: 8/9/2012 5:05 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11186707

RE: JetCat servicing for UK users
Great work, ill certainly consider sending mine to yours when a service is needed [:D] Scott.
Posted on: 8/4/2012 2:25 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11180924

RE: What's new in Sport Jets?
[quote]ORIGINAL: Mach1 Thanks, I've almost got all the bugs worked out of the design and the construction methods solved. Here's a few more pics. Wing area comes out to about 1600 sq's. Any thoughts are greatly appreciated. [/quote] I like it and I have a spare Wren 54 kicking about .... when wil the plans be available? Scott.
Posted on: 8/2/2012 8:35 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11178419

RE: Elvington Jet meet
It was a great day, had to bail early as I felt a little unwell .... 4 in the air all day but im pleased I got my require 4 flights in [:D] Thanks for the invite lads, cant make it today, but have a great time... Hopefully some good photos will emerge [;)] Scott.
Posted on: 7/22/2012 12:23 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11164173

RE: Elvington Jet meet
Rob, I went to the last one and I did get to fly plenty at Elvington [:D], but some flyins Ive been too seem to have you waiting around for ages ... Wasnt a moan I promise, of course I can understand some people own jets worth 1000's unlike my 100's [&o] Scott.
Posted on: 7/19/2012 11:43 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11161355

RE: Elvington Jet meet
Aiming to arrive early .... finishing work early tomorrow so I can run my up my Starfighter ... make sure all is well [;)] I have a Ducty as well, so will bring that if I can squeeze it in the car ... Martin I will bring my Insurance and some cash so we can discuss the JMA thing ... I appreciate that some people like there own slot, but please tell me its not going to be a day of having to wait around for others? [:o] Regards Scott.
Posted on: 7/19/2012 11:28 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11161339

RE: Time to take the leap - JR12X or Futaba 12FG
[quote]ORIGINAL: TimWatson [quote]ORIGINAL: siddus74 I would not put Spektrum stuff anywhere near a Jet, im still seeing anomalies in fellow flyers at various clubs that have casued crashed with even this far down the line with DX8's etc... if they cant get those right what chance do they have with more complicated radios .... Scott. [/quote] Well Thousands of people do and it works
Posted on: 7/18/2012 7:42 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11159818

RE: Time to take the leap - JR12X or Futaba 12FG
I would not put Spektrum stuff anywhere near a Jet, im still seeing anomalies in fellow flyers at various clubs that have casued crashed with even this far down the line with DX8's etc... if they cant get those right what chance do they have with more complicated radios .... Ive had a Futaba 10CG for 2 years and and fellow jet flyer has had one for a couple of years after migrating away from spektrum also, not a single issue ... its all about the confidence in the equipment for me above how many channnels they have and telemetry etc ... Had another jet flyer friend using a DSX9 with the Spektrum power safe RX's put 3 jets in in as many months only to sell it all and go out an buy a JR11XG ... go figure ... Futaba stuff just works in my experience ... Scott.
Posted on: 7/18/2012 12:43 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11159555

RE: JetCat Startmotor Specs
The ECU can run safely from 9v to 16.4v .... 2S is not enough ... Scott.
Posted on: 7/16/2012 11:44 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11157480

RE: JetCat Startmotor Specs
I have a Jetcat starter motor and Pod fitted to it at the moment (from an older P80) ... the voltage still needs to be 6volt and not 12 volt ... Scott.
Posted on: 7/15/2012 11:35 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11156138

RE: JetCat Startmotor Specs
hmmm.. I think I get what Bennie, DB and Skycat mean ... V=IR ECU = 12.6 volt Can Supply 20amps Motor 6v Drop 6.6v V/I=6.6volts/20amp=0.33Ω V/I=6.6volts/10amp=0.66Ω V/I=6.6volts/05amp=1.32Ω 10/05 6.6x5=30 watts ECU = 16.8 volt Can Supply 20amps Motor 6v Drop 10.8v V/I=10.8volts/20amp=0.54Ω V/I=10.8volts/10amp=1.08Ω V/I=10.8volts/05amp=2.16Ω The old ECU battery is a 10cell Mimh so is 12.5v so im thinking 3Cell would be better .... any thoughts on the above? Scott.
Posted on: 7/15/2012 10:48 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11156083

RE: JetCat Startmotor Specs
Having tested the startermotor on a 5cell 6v (6.54v) it was drawing just over 20 amps for a breif moment dropping to about 13amps or so one spinning .... the watts were about 95 watts at peak ... Im considering going back to running the ECU @12 Volts .... be easier to step down from 12 volts ( 3s 12.60v ) to 6 volts ... DW must be correct about the voltage supplied to the JetCat starter if below is the motor used ... Graupner Speed 300 6V (3306) Micro hi-performance motor, ideal for small model boats. Provides good performance already at a mere 1.2 V Specification: Nominal voltage 6V Operating voltage range 1.2-6 V No-load speed 29000 No-load current drain 0.7A Current drain at max. efficiency 5A Stall current 28A Max. efficiency excl. gearbox 65% Permissible directions of rotation L and R Case length excl. shaft 30.8mm Case diameter 24.4mm Free shaft length 7mm Shaft diameter 2mm Weight 50g Part No: G3306 Scott.
Posted on: 7/15/2012 9:39 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11155928

RE: JetCat Startmotor Specs
Its an air start that im converting, but the V2 ecu has the Electric start capabilities ... I set it to E start and soldered the wires on and went for a test the starter turned but only briefly and only once .. it had been sent to Amt and he had repaired it. Below is the response from Bennie, im sure it wasnt a direct short as the starter definately spun Subject: Re: AMT Mercury Starter motor   Hi Scott, The ECU is repaired and ready for shipping back to you today, we will use registered mail. The starter output of the ECU PCB was damaged most likely by short circuit of that output. Also the 2 leads to that output were poorly soldered, anyhow we fixed that all and did run an Mercury engine with that ECU and all worked OK. Scott :-)
Posted on: 7/13/2012 2:10 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11154140

RE: So close but yet so far
[quote]ORIGINAL: erbroens IMHO if you want to fly, it is cheaper and better to buy a turbine in wich this development was already done. Believe me, you have a lot to learn and things to pay attention while flying a HS. you don´t need extra workload with the engine issues while learning to fly. [;)] Best regards, Enrique. [/quote] Very good advice .... Scott.
Posted on: 7/13/2012 11:57 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11154013

RE: JetCat Startmotor Specs
[quote]ORIGINAL: dbsonic Its too bad they didnt tell you how much current the ECU could source but lets assume less than 1 amp. Start off by assuming you drop the entire voltage across that resistor (the motor a short). And size it accordingly. if you are really supplied by a 4s lipo then that is roughly 16volts so start off with 100ohm. So thats only 160mA and should do no harm and see if that spins your motor sufficiently. Then work down to a 50ohm and perhaps maybe as low as 10ohm. my 2 cents. [/quote] db thanks for the advice .... I dont suppose you can tell me how you came to the above conclusion? I dont mind you treating me as if im thick [;)] Scott.
Posted on: 7/13/2012 10:58 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11153931

RE: JetCat Startmotor Specs
Just had an email response from Bennie ....the man is right geaser ... Can any of you electric guru confirm if the required resistor from the email response is correct please, obviously when I tryed it last time it damaged the ECU as the starter still works ... [b]"The start motor output from the ECU is equal to the supply voltage (4SLiPo). When you use a electric motor like the 280, it is best to put a resistor in one of the starter cables to limit the current and so protect the ECU and also the 280. What kind of resistor I do not know, I guess something like 1 Ohm/5 Watt could work."[/b] Many thanks, Scott.
Posted on: 7/13/2012 2:01 AM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11153517

RE: JMA Long Marston Jet Meet July 14th-15th
Sounds like you guys are going to have a great time ... I should have pulled my finger out and joined the JMA .... Scott.
Posted on: 7/12/2012 11:43 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11153474

RE: JetCat Startmotor Specs
[quote]ORIGINAL: jetnuno Hi What matters is what tension the ECU delivers to the motor. Did you measured the starter motor tension while running? A 6V speed 300 won't fry with a 6 cell pack running a starter motor in a turbine. I believe the motor is a slighly modified speed 300, but the same motor as fuel pump. Regards Nuno [/quote] Nuno ... I dont understand the term "tension" please explain. Regards, Scott.
Posted on: 7/12/2012 11:34 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11153470

RE: JetCat Startmotor Specs
Alan, I think I understand what your saying ... it did actually turn the starter over once then never again (hence the trip to AMT and the above text) I dont want to have the repaired unit damaged due to the stater being of the incorrect specs .... Its a jetcat one (a fraction of the price) brushed (2 wires) ... I think is a 280??? Being that it turned over once doe that mean to say that it may not have been shorted due to the soldering on the board but due to the starter specs? I have been using the starter with 6cell 7.2v nimh for starting through a relay on the ASU with out an issue, but the ECU does have E start capabilities hence the above experiment ... May opt for a fadec from Gaspar? Scott.
Posted on: 7/12/2012 12:55 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11152875

RE: JetCat Startmotor Specs
Its not 3 phase so I guess brushed .... Scott.
Posted on: 7/12/2012 12:35 PM by Author "siddus74" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11152840