Yellow Aircraft Stingray
#51
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Better it climbs on power then duck under ...
I might add a few degrees. But I will wait if you can come up with any info.
For sure it needs reflex for takeoff... So, upthrust can only be good.
It seems she ducks under in turns too, signs of no up thrust. Me thinks.
I might add a few degrees. But I will wait if you can come up with any info.
For sure it needs reflex for takeoff... So, upthrust can only be good.
It seems she ducks under in turns too, signs of no up thrust. Me thinks.
#52
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Giving up thrust will help any time, you get to find the effects during flight, when it is going faster it wants to climb a bit then you push the Elevons down a bit then back to normal cruise speed ( 2/3 throttle ) all is back to normal trim.
These tailess airplanes are a diferent animals and your Stingray will fly a bit different than mine or my friend's, but it will fly and scare the pants off you
These tailess airplanes are a diferent animals and your Stingray will fly a bit different than mine or my friend's, but it will fly and scare the pants off you
Thanks for the encouragement!!! Haha😁😁🤞🤞🤞
#56
My Feedback: (7)
Here is what my friend said and I agreed on the suggestion of the mount from BVM, I used that mount, the more precise you build it the easier it will be to fly, I also agreed on 1/8 reflex up to start with.
On my Kangaroo I took half of the reflex up today, that's after 3 flights, it will take around 6 flights to get all dieled in.
Last edited by CARS II; 10-19-2019 at 04:56 PM.
#57
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Thanks all for the input!
So I got working this morning. Swapped everything over., Egt, fuel /tach wiring...
Everything swapped top side ..
Can't get lower than this....
Now, how do the BVM mounts look like?... Need to figure the next bit out.
So I got working this morning. Swapped everything over., Egt, fuel /tach wiring...
Everything swapped top side ..
Can't get lower than this....
Now, how do the BVM mounts look like?... Need to figure the next bit out.
#58
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Here is what my friend said and I agreed on the suggestion of the mount from BVM, I used that mount, the more precise you build it the easier it will be to fly, I also agreed on 1/8 reflex up to start with.
On my Kangaroo I took half of the reflex up today, that's after 3 flights, it will take around 6 flights to get all dieled in.
#59
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Something of the sort... Using 1.5mm or 2mm Aluminium... Tabs to be bent to the fuse profile...
I believe thrust line should be close to the longitudinal axis to avoid pitch moments ... Tell that to the 738Max, and our 320neos!😁😁😁
I will have to fabricate something to make it fit!
Thanks!
Last edited by Signofinfinity; 10-20-2019 at 01:00 AM.
#62
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Update... Was flying all over Europe yesterday! Some work this morning...
Will use the glow plug as an anti rotation pin..
Any lower... And good bolt touches..
Decent?
Left side thust..18.4cm
A parallel with the mold line.. engine has just the planned 2 degrees upthrust
Right side thrust...18.4cm
The mold line vrs longitudinal axis of engine... About 2 degrees cone up
#64
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Retracts...
Ok, last question to you guys in the know.
Attached is screen shot of what I am ordering from Robart.
Being in the US, and lack of availability, can some one double check I am placing the correct order?
Am planning to install a mini servo for the nose wheel...I hate pull pull....and get the suggested wire nose leg.
Makes sense? Robart confirmed just a trunion reversal... Servo bracket? No pull pull. Wire leg? Looks horrible.... Strut better but not recommended?
Or should I get the robo strut two wheels???
Thanks a million for the support guys! Appreciated!
Attached is screen shot of what I am ordering from Robart.
Being in the US, and lack of availability, can some one double check I am placing the correct order?
Am planning to install a mini servo for the nose wheel...I hate pull pull....and get the suggested wire nose leg.
Makes sense? Robart confirmed just a trunion reversal... Servo bracket? No pull pull. Wire leg? Looks horrible.... Strut better but not recommended?
Or should I get the robo strut two wheels???
Thanks a million for the support guys! Appreciated!
Last edited by Signofinfinity; 10-22-2019 at 04:02 AM.
#66
My Feedback: (7)
The engine looks at home now, nice work, I would go with that mount, all straps now days don't have an anti-rotational glow plug hole, not really needed, engines don't move around, they move forward if the airplane suddenly comes to a complete stop.
Last edited by CARS II; 10-22-2019 at 08:08 AM.
#67
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Thanks.. haha yes indeed! Engines go forward in the event of a dead stop stop!
#68
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[QUOTE=CARS II;1255830
I believe these are the Stingray's retracts and struts, they are Springair, air up/spring down retracts and struts, no main wheels with brakes wheels.[/QUOTE]
Thanks. I will check with the robart equivalent. I have the original Funky retracts... But, they are tooooo soft!!
I believe these are the Stingray's retracts and struts, they are Springair, air up/spring down retracts and struts, no main wheels with brakes wheels.[/QUOTE]
Thanks. I will check with the robart equivalent. I have the original Funky retracts... But, they are tooooo soft!!
#70
My Feedback: (10)
FWIW I used the stock retracts for a long time (with old bvm struts), they actually have some nice features, but I did eventually switch to robart. I can't remember which part number but the ones you have listed look right. At the same time I switched I put on some modified prolink trailing link main struts. I used the same bvm wheels and brakes with the trailing link.
I did keep the funkey nose gear though. I ran a twin nosewheel with bvm straight strut
I did keep the funkey nose gear though. I ran a twin nosewheel with bvm straight strut
#71
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FWIW I used the stock retracts for a long time (with old bvm struts), they actually have some nice features, but I did eventually switch to robart. I can't remember which part number but the ones you have listed look right. At the same time I switched I put on some modified prolink trailing link main struts. I used the same bvm wheels and brakes with the trailing link.
I did keep the funkey nose gear though. I ran a twin nosewheel with bvm straight strut
I did keep the funkey nose gear though. I ran a twin nosewheel with bvm straight strut
#72
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So, one stupid question....
Anyone use a 3/8 robo strut for the nose???
I want to order the servo plate too to remove pull pull.
But... How the heck do the 3/8 robo strut get hooked up on a nose wheel retract?
Can I use the servo plate with a robostrut at all??
https://robart.com/products/550sbd-steering-servo-mounting-bracket-mini-servo-7-16-strut-1-4-axle
Servo.. gear up..32mm
Servo.. gear in transit..32mm
Servo.. gear down..32mm
Anyone use a 3/8 robo strut for the nose???
I want to order the servo plate too to remove pull pull.
But... How the heck do the 3/8 robo strut get hooked up on a nose wheel retract?
Can I use the servo plate with a robostrut at all??
https://robart.com/products/550sbd-steering-servo-mounting-bracket-mini-servo-7-16-strut-1-4-axle
Servo.. gear up..32mm
Servo.. gear in transit..32mm
Servo.. gear down..32mm
#74
My Feedback: (7)
They come ( I think ) with a sleeve to increase the OD to 1/2" and an insert so it can be use with the retract's pin that it comes with which happens to be the thickness of the wire strut, we usually JB weld the insert into the strut then drill a hole and tap it, that screw will secure it to the pin, you could use two set screws if you like.
Last edited by CARS II; 10-23-2019 at 10:20 AM.
#75
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The servo plate comes with the 7/16 dowel to fit in the retract... But the center hole is 1/4!!! So how does the 3/8 strut be used for nosewheel???
Head scratching. Am sure someone must have used a 3/8 robostrut for nose wheel. 1/4 pin perhaps??