RE: Kudos Kingtech service!
Do you know if they have any higher thrust engines planned in the 200N-300N class? Rob.
Posted on: 5/18/2013 3:43 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11514993

RE: Jetcat P200SX question
Is it temperature limiting? Is the pump running at max voltage? Is the ecu still "learning" the engine/install? Rob.
Posted on: 5/16/2013 9:29 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11513875

RE: 3.48m Viperjet XXL
It's not big enough [:D] Rob.
Posted on: 5/16/2013 9:23 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11513873

RE: Kudos Kingtech service!
Yes, I have to say that although I have no personal experience with K'tech I have not heard anything negative, no better way to start as a new manufacturer. Rob.
Posted on: 5/16/2013 4:52 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11512984

RE: Kudos Kingtech service!
Sorry Ali, [:D] I only deal with 2 companies that both provide a similar level of service so probably not enough spread to experience service at a lower level. Rob.
Posted on: 5/16/2013 4:29 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11512971

RE: Kudos Kingtech service!
Are there manufacturers that don't provide this level of service? Rob.
Posted on: 5/16/2013 4:11 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11512963

RE: Alternative uses for turbine engines
Driveway de icer. Rob.
Posted on: 9/11/2012 10:24 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11225781

RE: NEIL ARMSTRONG RIP
That's a shame. Rob.
Posted on: 9/10/2012 4:14 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11223486

RE: NEIL ARMSTRONG RIP
I look forward to seeing the first man set foot on Mars, only hope it will happen in our lifetime. Rob.
Posted on: 9/10/2012 2:06 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11223442

RE: Wow Vulcan low passes from above perspective - VID
Hmmmm......conduct unbecoming a bomber as was once said. Rob.
Posted on: 8/25/2012 12:54 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11205694

RE: C-ARF Ultra Flash build Thread + Video
Wow, what a challenge, getting that wrong would be a "Miss Demeanour" [:D] Should look great when finished Rob.
Posted on: 8/21/2012 12:58 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11201154

RE: Wow Vulcan low passes from above perspective - VID
Vulcan was my intro into the world of nuke bombers, probably one of the best crowd pleaser displays. Unfortunately we fought a loosing battle on maintenance as the airframes were never up to the low level battering from the role change and used to joke about the need for umbrellas for the rivet showers [:D] Rob.
Posted on: 8/18/2012 7:05 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11197709

RE: Wow Vulcan low passes from above perspective - VID
[quote]ORIGINAL: Ram-bro so is the Vulcan still in service with the Brits? [/quote] No, retired in the early 80's. Rob.
Posted on: 8/16/2012 9:56 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11196481

RE: C-ARF Ultra Flash build Thread + Video
Yes, nice to have some good intelligent opinions without anyone getting offended, though it's quite often the case that opinions ned to have a qualifying note that it is just an opinion, etc. [:D] usually accompanied by a smily to judge "mood/context" On the subject of crow/wing camber changes a lot of the latest generation full size designs use constantly optimised wing camber to give the best possible solution for any given flight scenario using many different data inputs. This is all aimed at "carefree handling", might be interesting to see the effects say of one of the latest gen 3 axis stabilisation systems on the UF. I wonder if the near miss in the video would have a different result if one of these was fitted or even just a rol axis gyro? Rob.
Posted on: 8/15/2012 4:45 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11194130

RE: C-ARF Ultra Flash build Thread + Video
[quote]ORIGINAL: Walo I maidened mine last week. Unfortunately the first landing was a ''Snap Landing''. Deceleration was much faster then I expected (100 mm or 4 inches landing flap). Nothing happened but my next landings were way too fast what resulted in bumping and some damage to the nosegear. After studying the messages in this forum I will reduce the amount of flaps for my landing configuration. Regards Walter http://youtu.be/rqWCNXOwuOU [/quote] I don't think that is a snap, the airspeed is way too high. Something else is happening there. Rob.
Posted on: 8/14/2012 8:37 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11193031

RE: C-ARF Ultra Flash build Thread + Video
[quote]ORIGINAL: cbooth1979 I have the same struts. I am having an issue with the springs being way too soft especially with full fuel. Is anyone else having this issue? i havent yet found any springs that are stiffer, anyone have any ideas? [quote]ORIGINAL: IFlyEm35 Anyone using the Airtech trailing link struts? [img]http://i144.photobucket.com/albums/r187/mvedepo/gear2.jpg[/img] Not much of a fan of the square struts. Aside of looks how do they perform? [/quote] [/quote] Go for struts with compression springs...Behotec, no issues with stretching or weak springs. Rob.
Posted on: 8/12/2012 6:38 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11190245

RE: CARF Siai Marchetti
Nice, I think YT do some good value larger pilots, I'll be looking at them for my one off Tutor. Rob.
Posted on: 8/12/2012 2:18 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11190106

RE: C-ARF Ultra Flash build Thread + Video
The only reason a tank will implode is because the inward vent is too restrictive, so long as the space left by the fuel can easily be replaced with vent air and the feed lines through the series tanks to the pump are big bore there will be no issues. My setup proves it, with around 100 flights now with Merlin 140, bored out felt clunks, 1/4 inch o/d Tygon, original BVM UAT. Zero cavitation and the same tiny air volume in the UAT from start to finish. Rob.
Posted on: 8/12/2012 2:12 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11190102

RE: CARF Siai Marchetti
Very nice Ian......but for goodness sake get someone in the office though, I hate to see thousands spent on a "ghost" plane; and to think I always thought props were for boats [:D] Rob.
Posted on: 8/11/2012 11:58 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11190063

RE: C-ARF Ultra Flash build Thread + Video
[quote]ORIGINAL: timtoolman Hey How are guys plumbing the saddle tanks? I am concerned about running them parallel because I can't monitor them filling. So I am thinking of feeding them like this: UAT - Fuse tank - Saddle tank A - Saddle tank B - Overflow What's the consensus? Thanks! [/quote] That's the way I do it, (series), with 1/4 inch Tygon on everything including vent, resulting in zero fuel feed issues. I also only run my fuel bowser pump on a single cell to ensure the thin fragile saddle tanks are not under too much stress. Takes a little longer to fill though. Also be careful with the length of the two wing mounting bolts as they can damage the saddles when tightening down, I shortened mine so they are just long enough. Rob.
Posted on: 8/11/2012 11:47 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11190059

RE: Elvington Autumn Jet Weekend
Excellent news Martin. Rob.
Posted on: 8/7/2012 3:58 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11183956

RE: C-ARF Ultra Flash build Thread + Video
Phil, yes, I understand what you are saying and it's on my list of things to try but I'm not sure if it's treating a symptom rather than curing the root cause? Throttle position does not seem to make the jet zoom until I am at higher speeds, it seems to be airspeed related so maybe if I could mix trim with airspeed, I'm trying to think of a way of doing this I'd prefer not to be flicking another switch in and out if it can be avoided. Maybe a gyro on pitch with an airspeed input? Thanks for the input, it's one of the good things about online forums. Rob.
Posted on: 8/5/2012 1:21 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11181376

RE: C-ARF Ultra Flash build Thread + Video
I will try moving my CG rearwards to see if it helps. To my mind with the elevators at neutral any tendency to dive/climb should be minimal if the CG is in a comfortable position. I'm nor sure whether mixing pitch with with throttle % would be a cure at varying air speeds? Rob.
Posted on: 8/5/2012 12:45 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11181364

RE: Mobil DTE Light Oil or similar
I usually get 20 litres at a time, surprising how you can get through it. Show slots....yuck! Rob.
Posted on: 8/4/2012 8:23 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11180670

RE: C-ARF Ultra Flash build Thread + Video
Thanks gents, yes the only thing bugging me was the long dihedral,the wing is squeaky tight when tightening down those last few threads so I have to assume the geometry is correct. The permanent up trim though has always bothered me. I'll try the 45 up line test next time out. Rob.
Posted on: 8/3/2012 11:42 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11180428

RE: C-ARF Ultra Flash build Thread + Video
How do you know when your UF has the CG in the correct position? Rob.
Posted on: 8/3/2012 1:04 PM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11179874

RE: Powerbox iGyro
Has anyone actually fully entrusted their multi $€£K jet over many flights to this? Rob.
Posted on: 8/3/2012 9:52 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11179681

RE: CARF Ultra Flash
I'm sure there are plenty of people who would be happy to swap their standard flash wings/stab for an ultra set to save the 1k cost of an upgrade.[;)] Rob.
Posted on: 8/3/2012 9:33 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11179661

RE: Jets Over Kentucky Part III (Spectacular Mid-Air Crash)
Yes, absolutely gutting that both jets were lost, it is something that fortunately only happens rarely and I would not want to upset any one with speculation even though it is human nature. Hopefully at least one thing would have been learned from the incident. Unrelated to this incident I was flying at another event where on more than one occasion I had to ask while I was actually flying whether the circuit/pattern was left or right because someone was flying the wrong circuit! Rob.
Posted on: 8/2/2012 9:37 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11178495

RE: Jets Over Kentucky Part III (Spectacular Mid-Air Crash)
Commiserations, what a great jet, lessons learned....someone in the wrong pattern? Rob.
Posted on: 8/2/2012 4:56 AM by Author "Robrow" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=11178223