Ripmax Xcalibur Sports jet
07-23-2020, 08:44 PM
#2502
You see, I prefer propane start engines, my P60 is propane start, this one is not, my only Kero start is my K80 that is mounted on my Reaction 54, that's why I use the exhaust deflector, if a Kero start engine doesn't start then there is Kero or diesel left inside the engine and on the next start you get flames, that doesn't happen with propane start, also the start up sequence is much faster.
Forgot to mention that the double wall pipes that we use for exhaust deflectors can take the heat from the flames, the single wall ones can not.
Forgot to mention that the double wall pipes that we use for exhaust deflectors can take the heat from the flames, the single wall ones can not.
Last edited by CARS II; 07-23-2020 at 08:54 PM.
07-24-2020, 03:16 AM
#2503
Originally Posted by CARS II
You see, I prefer propane start engines, my P60 is propane start, this one is not, my only Kero start is my K80 that is mounted on my Reaction 54, that's why I use the exhaust deflector, if a Kero start engine doesn't start then there is Kero or diesel left inside the engine and on the next start you get flames, that doesn't happen with propane start, also the start up sequence is much faster.
Forgot to mention that the double wall pipes that we use for exhaust deflectors can take the heat from the flames, the single wall ones can not.
Forgot to mention that the double wall pipes that we use for exhaust deflectors can take the heat from the flames, the single wall ones can not.
07-24-2020, 01:33 PM
#2506
Junior Member
Dear fellow xcal-flyers,
i've been reading this thread for quite some time and i must say i am overwhelmed by the amount and the quality of information available.
After being hooked up to jets last year with a used (and crappy built) trainer with VT80, i've decided to build my own xcal.
Here's some photos and the mods i did and finished model, please do comment -> especially things you DONT like
Equipment is:
Jetsmunt M100XBL
Electron 40 with electron steering
Savox 2264MG all-round, on flap is 1270TG
Cortex PRO
2x 2s2p 3600mAh packs, 2 for turbine and 2 for RC system
intairco fuel trap
(edit) sorry just saw i am unable to add photos until i have 10 posts, will do that shortly
i've been reading this thread for quite some time and i must say i am overwhelmed by the amount and the quality of information available.
After being hooked up to jets last year with a used (and crappy built) trainer with VT80, i've decided to build my own xcal.
Here's some photos and the mods i did and finished model, please do comment -> especially things you DONT like
Equipment is:
Jetsmunt M100XBL
Electron 40 with electron steering
Savox 2264MG all-round, on flap is 1270TG
Cortex PRO
2x 2s2p 3600mAh packs, 2 for turbine and 2 for RC system
intairco fuel trap
(edit) sorry just saw i am unable to add photos until i have 10 posts, will do that shortly
07-24-2020, 11:55 PM
#2509
Junior Member
what connectors/probes do you use to fuel your jets ?
what i use is simple 4/6mm festo tube and double connectors, closed with one-way valve.
while it does provide basic function i was thinking of going the festo KD/KS way.
what are your solutions ?
what i use is simple 4/6mm festo tube and double connectors, closed with one-way valve.
while it does provide basic function i was thinking of going the festo KD/KS way.
what are your solutions ?
07-25-2020, 01:33 AM
#2511
On these pic you can see the tygon line safety wire to the UAT and at the end you can almost see the fuel dot, by now I've swapped the 6mm fuel line from the tank to the UAT and replaced with Tygon also, Tygon fuel line is fine there up to 27lbs thrust engines and I have a 6mm from the UAT to the pump with a small piece of 4mm over the fuel intake on the pump also safety wired and the 4mm going to the engine with safety wire also, that is my standard install at the moment.
07-25-2020, 02:18 AM
#2512
Junior Member
that was one of the options too and still is, frankly.
i was also considering the above option + a fuel dot and actually got one myself but didnt realise that in none of my jets yet.
i was also considering the above option + a fuel dot and actually got one myself but didnt realise that in none of my jets yet.
07-27-2020, 12:23 PM
#2513
I made the first flights with my Xcalibur today, July 27. Actually made four flights with my instructor pilot. He made the first one and trimmed it for normal flight, then take off flaps and finally landing flaps. I set up 3 flight modes in the DX9 which makes flying it easier. I did make a takeoff on flight 4. I’m not ready for landings just yet. All of my experience is with large scale Extras and Citabrias, etc. Many flights on these types of planes. Jets are a new gig but is already becoming a lot of fun. I love to learn as much as I can in this hobby, having been at it for quite a number of years.
My instructor pilot Likes the Xcalibur quite a bit and thinks it was a very good choice for a first turbine jet. He’s an excellent teacher and an expert jet guy so I’m lucky to have him and other experienced jet types at my field here in Columbus Ohio.
More later guys...
My instructor pilot Likes the Xcalibur quite a bit and thinks it was a very good choice for a first turbine jet. He’s an excellent teacher and an expert jet guy so I’m lucky to have him and other experienced jet types at my field here in Columbus Ohio.
More later guys...
07-27-2020, 01:28 PM
#2516
Originally Posted by k8svrick
I love the smell of jet exhaust and kerosene in the morning! 😆
The following users liked this post:
Tom ling (07-28-2020)
07-28-2020, 01:19 PM
#2521
Technical note on the operation of the Jet Tronics proportional brake valve.
I use down elevator to apply the brakes after landing if needed. Here at my field we have 1000 feet of manicured grass runway so it’s not need for most jets. Brake setting is off with stick neutral. Brake valve is “off” during flight whenever the gear is up. So brake air is not used until gear is deployed. Once gear goes down the brake valve becomes alive. There’s down trim in the elevator in flaps 1 and flaps 2 flight modes so the brakes came on, although it was a small amount of braking action. This required reprogramming the brake valve, which required 10 seconds to accommodate the in-flight change in down trim.
I thought this was worth mentioning for those who have no previous experience with this and other similar devices for brakes.
I use down elevator to apply the brakes after landing if needed. Here at my field we have 1000 feet of manicured grass runway so it’s not need for most jets. Brake setting is off with stick neutral. Brake valve is “off” during flight whenever the gear is up. So brake air is not used until gear is deployed. Once gear goes down the brake valve becomes alive. There’s down trim in the elevator in flaps 1 and flaps 2 flight modes so the brakes came on, although it was a small amount of braking action. This required reprogramming the brake valve, which required 10 seconds to accommodate the in-flight change in down trim.
I thought this was worth mentioning for those who have no previous experience with this and other similar devices for brakes.
07-28-2020, 04:49 PM
#2522
It is helpful, I have done some flight modes before and they work great! I assembled a Kincat and used flight modes, my friend also owns this Xcalubur and since he isn't that active at this time I have to KISS the install, I installed an older retract Jetronics valve, because it was his valve, I prefer the standard valves ( acctuated by a servo ) simpler set up.
07-29-2020, 01:46 AM
#2524
Originally Posted by CARS II
It is helpful, I have done some flight modes before and they work great! I assembled a Kincat and used flight modes, my friend also owns this Xcalubur and since he isn't that active at this time I have to KISS the install, I installed an older retract Jetronics valve, because it was his valve, I prefer the standard valves ( acctuated by a servo ) simpler set up.
