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Author Topic: RingStreakster/FP .20 weight question  (Read 3677 times)

Offline Terry Caron

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RingStreakster/FP .20 weight question
« on: October 26, 2015, 09:30:14 AM »
The RingStreakster is a Flight Streak wing on a Ringmaster fuselage.
I can lower weight from 32.6 oz to 31 oz by using the Flight Streak monopod LG.
Worthwhile?

FWIW, I'm trying to learn basic maneuvers so it's not fine-tuning for a few more points.  :)

Terry
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Offline Dane Martin

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Re: RingStreakster/FP .20 weight question
« Reply #1 on: October 26, 2015, 10:08:29 AM »
I fly my ring masters off of grass. I dont have lg on the ones i fly the most, but its not to save weight. If you like the lg and the way it lands, leave it on. Its not worth the small weight savings if you enjoy it. If you dont care and can belly land in the grass, go for it. That weight is not terrible. Practice with yours and scratch build a lighter one

Offline Tim Wescott

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Re: RingStreakster/FP .20 weight question
« Reply #2 on: October 26, 2015, 12:00:44 PM »
It should be fine either way, but might be more sprightly with the monopod.  If it's convenient, try it each way.
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Offline Terry Caron

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Re: RingStreakster/FP .20 weight question
« Reply #3 on: October 26, 2015, 12:06:08 PM »
I suspected it wouldn't make a significant difference, but I'm going with the mono - less weight sure can't hurt.  :)
Thanks guys.

Terry
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Offline Jim Hoffman

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Re: RingStreakster/FP .20 weight question
« Reply #4 on: November 08, 2015, 05:03:59 PM »
Terry,

1 oz. out of 30 is a significant weight savings, especially for someone learning to do the maneuvers.  Even 1/2 oz is noticeable.

If you fly off smooth grass, I would recommend you abandon the landing gear, hand launch, and enjoy take the weight savings.  Set the prop so that it is horizontal during the landing when the air blows it towards compression.

BTW, I have a 25 oz. Ringmaster w/ an OS 20 FP.  The weight makes for a good performing model which is EASIER to fly that a heavier equivalent.

Hope this is helpful

Jim Hoffman

Offline Terry Caron

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Re: RingStreakster/FP .20 weight question
« Reply #5 on: November 08, 2015, 06:31:45 PM »
With you and Dane recommending it, Jim, since I have a flying buddy who can hand launch well I'll try it w/o gear, saving another ounce or so.
I may not fly any better but at least it won't have to dissipate as much energy when it hits the ground!!  LL~  LL~

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Online Brett Buck

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Re: RingStreakster/FP .20 weight question
« Reply #6 on: November 09, 2015, 12:20:50 PM »
I think the ability to attempt correct takeoffs and not tip over on the inboard wingtip greatly outweighs the the value of saving an ounce, particularly on an airplane with the (pretty decent) Flite Streak wing. The Skyray wing is nearly identical aside from lacking the "fixed flaps" and it will fly pretty well even at the kit weight of about 36 ounces, as long as you have a good engine. Almost all of the local Flite Streaks have conventional 2-wheel gear. And, there's no reason to make it weigh more. I think the cut-in-half-and-rebent Hallco gear on the Skyray, plus the new spoked wheels, weighs less than the single-wheel gear that came with it.

   For a Ringmaster I might have another opinion, but even then, one of the best-flying Ringmasters I have ever flown was a stock kit-wood version with a full, opaque dope finish, that probably weighed around 30 ounces - with a 15FP.

    Brett

Offline Terry Caron

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Re: RingStreakster/FP .20 weight question
« Reply #7 on: November 09, 2015, 12:57:23 PM »
After a minor rebuild to it, I have an FP .20 replacing the previous Fox .35 so power's no issue.
I often read "build light!" - Jim mentions a 25 oz Ringmaster/.20FP (light) and you a 35 oz Skyray/.15FP (not so light) as good flyers, so it's a bit confusing.
Must be more to it than weight alone or hp/lb.

Terry
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Offline Dane Martin

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Re: RingStreakster/FP .20 weight question
« Reply #8 on: November 09, 2015, 01:19:45 PM »
In Texas last year, my rm with 25la weighed 24oz.
Joe Gilbert's with a brodak 25 weighed 23oz. Somehow his flew much better.... Lol

Ps, i flew in intermediate. Don't want anyone thinking i think I'm in any way at that level. However, i did issue the threat that next time he and i fly together, i would compete in his class... I better keep practising!

Offline Balsa Butcher

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Re: RingStreakster/FP .20 weight question
« Reply #9 on: November 09, 2015, 02:14:50 PM »
I would would go with the single gear. I have 2 super slow rat racers, one fox racer and a Shark 402 all with single gear. Take offs and landings are as good or better than similar airplanes with standard LG on any surface. Crash wise, the 1/8" single gear will bend backward absorbing much of the shock of a crash rather than transmit it to the fuselage(unless your specialty is crashing inverted or assuming the ever popular "lawn dart" flight profile). A wire skid on the outboard wing is optional but recommended.  8)  
« Last Edit: November 09, 2015, 08:40:20 PM by Balsa Butcher »
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Offline Terry Caron

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Re: RingStreakster/FP .20 weight question
« Reply #10 on: November 09, 2015, 02:28:37 PM »
My 2 local(ish) flying sites are both grass so tip skids or belly landings aren't issues.
I guess if an oz or 2 were really significant, take-off dollies and grass fields would be the norm.

Terry
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Offline Tim Wescott

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Re: RingStreakster/FP .20 weight question
« Reply #11 on: November 09, 2015, 02:49:57 PM »
After a minor rebuild to it, I have an FP .20 replacing the previous Fox .35 so power's no issue.
I often read "build light!" - Jim mentions a 25 oz Ringmaster/.20FP (light) and you a 35 oz Skyray/.15FP (not so light) as good flyers, so it's a bit confusing.
Must be more to it than weight alone or hp/lb.

Re-read Brett's post -- he mentions a 30 ounce Ringmaster with a 15FP, and opines on the flight characteristic of a 36 ounce Skyray, but not with a 15FP -- by "good engine" he probably meant a 20FP or 25LA.

A 36 ounce Skyray should be OK if it has a 20FP or 25LA.  I can't remember what weight my Skyray was, but it flew fine with a 20FP and -- because it was heavy -- better with a 25LA.  I have the remains of a 32 ounce Ringmaster that flew ok-ish on a 20FP, but I had it on 60' lines and I always needed to be mindful of not asking for too tight a corner because if I went there I got to experience the dread Ringmaster Stall.
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Offline Terry Caron

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Re: RingStreakster/FP .20 weight question
« Reply #12 on: November 09, 2015, 03:12:05 PM »
I stand corrected Tim - I thoroughly confused Brett's remarks.
Maybe correct balance between weight/power is the important point when the plane is already built.
Building light isn't to be discounted when one has the option.

Terry
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Offline Tim Wescott

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Re: RingStreakster/FP .20 weight question
« Reply #13 on: November 09, 2015, 03:42:40 PM »
I stand corrected Tim - I thoroughly confused Brett's remarks.
Maybe correct balance between weight/power is the important point when the plane is already built.
Building light isn't to be discounted when one has the option.

Weight, size and power.  A 30 ounce hunk of 2x4 with a 15FP on it won't fly nearly as well as a 30 ounce Ringmaster with the same engine.

If you read enough posts from the big boys you'll see that it's possible to build too light -- but the likes of you and me aren't going to get to that point for a good long time.
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The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.


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