Sidewinder ПНФ

• Overall
• Quality
• Value

well made good value for $

Sep 05, 2021

Lacks any assembly documentation, no info on the esc settings,very battery hungry draws up to 60 amps from 50 amp esc,so make sure you purchase 2200mah as a minimum 4 cell at least 60c,forget about dummy antenna and add lateral balance weights within the wing and add tail weight to balance the aircraft using 2200 mah battery forget using 1800 mah 4 cell as flight time is 2 mins.Suggest modify vtx compartment to increase air flow to cool. Noise is over 120db mostly prop noise try 6x4 prop versus 5.5x5.5. Limited space for flight controller carefully remove plastic shroud at rear near engine and fit within fuselage cavity. Cg is critical find on web.

• Overall
• Quality
• Value

High design quality - mediocre build quality - really fun yo fly!

Jun 27, 2020

Fast, fun wing! I'm flying my second one of these. I haven't installed FPV equipment. I enjoyed just flying LOS.
Things I have tried:
3S battery - wing doesn't flutter at full power, even without the included root reinforcement panels installed. For a 3S, I liked using a 6x4 APC style prop for better acceleration.
A 6x4 will go supersonic and disintegrate the tips at high speed with a 4S. The included prop is perfect for a 4S and seems quite efficient.
The recommended CG envelope is a little on the aft side IMHO. Pitch trim-speed coupling is increased, but low speed controll seems to improve a little with a CG about 10mm fwd of limit.
I have also installed 10mm long x 4mm high vortex generators about 30mm apart and at 10% chord on the outer 50% of each wing. They dramatically improved low speed stability and control. They were just thin polystyrene sheet glued into slits in the foam. They were set at alternating angles of about 15 deg to the aircraft centerline.
Another thing I want to play with is getting rid of adverse yaw. Obviously, this can't be done with control throws with elevons. Maybe a little strip glued along the lower fwd edge of the elevons to create a Frise-style control...

• Overall
• Quality
• Value

Good solid fpv wing

Nov 03, 2019

You have to source your own prop as there wasnt one in the box apart from the 5x5. Good quality wing. Fitting rx in is a little challenging so is the vtx

• Overall
• Quality
• Value

To flimsy

Aug 30, 2019

This wing looks nice but at full speed it starts shaking uncontrollably. Wouldn’t recommend buying it

• Overall
• Quality
• Value

Wing tips needs to be much STIFFER

Jul 22, 2019

Flimsy wing tips will flutter. I cutabout 2" off the wing and made the first 2" of the trailing edge(from the tip) FIXED, to prevent flutter. This is How it should have been made in the Factory

• Overall
• Quality
• Value

My first flying wing, and what a thrill!

Mar 30, 2019

This is one tough flying wing! Before I finally killed it off the other day after my receiver failed me, I think I crashed and repaired the thing no less than 20 times before the motor mount ripped in half and basically made the wing un-repairable to be safe to go over 100mph again safely.
It does get a nasty wing shudder if you take it too fast for sure, but you just slow down and it stops right away with no consequence. I will be waiting for this to go on a flash sale again and I will buy it a second time for sure.

• Overall
• Quality
• Value

I'll take the prop and adjust accordingly..Nice stuff if you use things right.. I'll get better mileage this way

Mar 21, 2019

I received my wing, and I like it.. getting ready to fly it as soon as the rain stops ( several days now in a row)..no instructions, but I already know where to calculate my cg at..from 7.75" to 8.10" depending on how you fly.. basically from beginner to advanced.

• Overall
• Quality
• Value

Incorrect parts included

Apr 27, 2018

Nicely built, but came with the wrong prop and 2 left hand, larger vertical fins. Shouldn’t be too big of a problem though.

• Overall
• Quality
• Value

WRONG PROP SUPPLIED

Apr 22, 2018

5045 prop supposed to be included----5.5x5.5 included with mine--induces savage wing shudder at full speed---beware!!!
Suitable 5045 props seem hard to find !