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HomeAircraftHelicopterHIROBOHirobo Freya › Weight issue
03-21-2015 03:41 PM  3 years agoPost 1
Jerman

rrApprentice

Longview, TX

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Hi guys, as I'm building this Freya Evo I have really noticed how heavy the completed upper and lower frames are, I know this bird was intended for use of nitro but Im converting it for electric, my question is if I decided to use carbon lower frames later would that dramatically lower weight on this and be more ideal for use with electric, my guess is that it would and would carbon lower frames holes line up with the upper plastic Evo servo frame, thanks!

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03-22-2015 04:30 AM  3 years agoPost 2
Santiago P

rrProfessor

South West, Ohio

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Hi,
I converted a Freya X-Spec for FAI-AMA competition. It has lower carbon frames, eliminated the front plate, and replaced the boom and boom supports for carbon ones and saved a little over ~.25Lbs over an Evo.

It is a very costly mod for an Evo and not worth if you are flying for fun. The lower frames are ridiculously expensive.

I am also using 770gm packs and a modest HK4035 motor to keep the weight low. The performance over the Nitro engine is amazing. Any more power and you may start stripping main gears.

Santiago

Team Minicopter - PeakAircraft.com
bavarianDEMON- Team Kontronik - Scorpion Motors-

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03-22-2015 05:17 AM  3 years agoPost 3
Dr.Ben

rrMaster

Richmond, VA, USA

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The lowest weight model will be achieved with the carbon lower frames, no mechanical plate, small receiver battery, carbon boom, carbon boom braces, and glass canopy. All up weight will still not be less than about 12.5 pounds. The all up full plastic Evo conversion is right at 13 pounds.
Chago is correct about power and gearing. Be especially cautious with the 10 tooth pinion and the higher tooth count main gears. Grab a handful of pitch at higher headspeed, and I 100% promise you will tear the teeth off the maingear OD. Keeping the gear lubed is critical as well.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-23-2015 02:02 AM  3 years agoPost 4
Jerman

rrApprentice

Longview, TX

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Thank you for the feedback, it's good to know, those frames are very expensive anyways, I am looking for just casual flying, nothing to extreme

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04-27-2015 04:19 PM  3 years agoPost 5
Heimypilot

rrApprentice

Hengelo Netherlands

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You might wanna check this: https://rc.runryder.com/t697058p1/

You can use the lower part only for the freya. I did! You 'll need to be able to make some parts yourself maybe, but it is a very good conversion. My Freya (also shown there) weights just below 5.5 Kgs.

Steven.

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