Purple Helix

By Walker on Jun 02, 2017

3 145 3

To reiterate what everyone else has said - this is a very well thought out frame made of the highest quality carbon I have seen. I'm finding it a bit harder to tune for freestyle than my top mount frames, but is stable in the air and very durable. Finding I actually like the longer Pagodas because they bend in crashes and exert less force on the vtx sma connector.

Very tempted to buy the new top and bottom plates and the 6" arms to reincarnate the thing in stretch form, but I'm enjoying it just enough to stop myself.

Part List

Frame	Helix ZX5 FPV Frame Impulserc.com	$268.60
ESCs	2 x EMAX D-SHOT Bullet Series 30A ESC (BLHELI_S) (59 builds) Pitchrollyaw.net	$25.98
Motors	4 x EMAX RS2205S 2300kv Red Bottom Racing FPV Motor (164 builds) Racedayquads.com	$79.96
Propellers	DAL Cyclone T5046C Tri-Blade 5" Prop 4 Pack - Choose Your Color (391 builds) Racedayquads.com	$2.99
FPV Camera	RunCam EagleRunCam Eagle Shop.runcam.com	$54.99
Antenna	EMAX PAGODA II ANTENNA BY MAARTEN BAERT (44 builds) Pirofliprc.com	$14.99
Receiver	FrSky XSR CPPM/S.Bus Receiver (35 builds) Fpvheadquarters.com	$14.99
Batteries	BONKA POWER 1300MAH 4S 80C GRAPHENE XT-60 (6 builds) Bonkausa.com	$30.49

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Discussion

stefanm84 Jun 03, 2017

I've been debating between this or the alien for freestyle which one do you recommend?

Walker Jun 04, 2017

I think they both leave something to be desired - this being a racing frame, and the alien being a comparatively ancient design. If you're dead set on an impulse frame for freestyle, I'd probably wait for the newer designs they have in the pipeline.

Newer top mount frames with shorter stacks will provide tighter centers of mass, and are thus easier to tune. The two such frames I have and can comment on are the Corgette and the Chameleon, and both have their strengths and weaknesses. The Corgette has better geometry and seems faster and more stable through the air. The Chameleon is more durable and sports a slicker design, but I'm not a fan of the wide X layout - definitely harder to tune well

stefanm84 Jun 04, 2017

Thanks for your reply. I've been also looking at the chameleon due to its warranty, and I like the unique design. I'll check out the corgette though.

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