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  #1  
Old 02-28-2020, 03:34 PM
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burkefj burkefj is offline
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Default Full Fuse R/C X-15 rocket glider

I just finished this and got some flights on E-20 and F-24 motors, I had to have a custom plug and mold made to make 4" cones the right shape and meet 3.5 oz so I did not require any CG, wing loading is heavier than I would have liked but it flies and boosts nicely and glides somewhat better than a real X-15.....scale speed is about Mach 2.4

https://youtu.be/xkV7pvBVGLQ
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  #2  
Old 02-28-2020, 04:17 PM
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A F-15 does 2.4 easy. A clean F-4 could.
That's a bit shy of Mach 5.
Better UP the power.

My 1/11 scale RC F-4 does a bit better than scale top speed at 150mph.
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Old 02-28-2020, 04:26 PM
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This is modeling Ed White's May 19th 1960 flight to mach 2.31
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Old 02-28-2020, 09:55 PM
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Quote:
Originally Posted by ghrocketman
A F-15 does 2.4 easy. A clean F-4 could.
That's a bit shy of Mach 5.
Better UP the power.

My 1/11 scale RC F-4 does a bit better than scale top speed at 150mph.


I lways loved the Phantom. Post a video here when you can.
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  #5  
Old 08-18-2020, 07:28 PM
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Sprint60 Sprint60 is offline
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Quote:
Originally Posted by burkefj
I just finished this and got some flights on E-20 and F-24 motors, I had to have a custom plug and mold made to make 4" cones the right shape and meet 3.5 oz so I did not require any CG, wing loading is heavier than I would have liked but it flies and boosts nicely and glides somewhat better than a real X-15.....scale speed is about Mach 2.4



Hey Frank,

Love your gliders! Quick question, on big models like this one do you use bigger/stronger servers or do the micros you typically use for the E6 powered rockets have enough strength?
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  #6  
Old 08-18-2020, 07:58 PM
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burkefj burkefj is offline
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I use hitec hs65hb servos for all my models
Even the bigger G powered models I Fly, we have plenty of power and speed on a 1S battery and weigh 10 grams. mostly I use them because they have good centering where the cheaper servos sometimes dither or don't center very well.


Quote:
Originally Posted by Sprint60
Hey Frank,

Love your gliders! Quick question, on big models like this one do you use bigger/stronger servers or do the micros you typically use for the E6 powered rockets have enough strength?
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  #7  
Old 08-18-2020, 08:31 PM
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Quote:
Originally Posted by burkefj
I use hitec hs65hb servos for all my models
Even the bigger G powered models I Fly, we have plenty of power and speed on a 1S battery and weigh 10 grams. mostly I use them because they have good centering where the cheaper servos sometimes dither or don't center very well.


Thanks for the quick reply; R/C equipment has really changed in the last 20-years!
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  #8  
Old 08-18-2020, 08:33 PM
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ghrocketman ghrocketman is offline
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You can get REALLY strong servos in really small packages now.
Especially if you run them at 6v.
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