On this evaluate, I’ll be taking a detailed have a look at the BetaFPV Air75, a 75mm tiny whoop that guarantees light-weight and spectacular flight capabilities. I’ll share my private experiences with this quad, highlighting its strengths, areas for enchancment, and the way it stacks up towards the favored Mobula7.
New to Tiny Whoop? Don’t miss out on my equipment suggestions: https://oscarliang.com/best-tiny-whoop/
The place to Purchase?
Get the BetaFPV Air 75 whoop from these distributors:
Batteries aren’t included, get them right here:
Get some spare props right here: https://s.click on.aliexpress.com/e/_DB5XEVH
Specs
- Body: Air75
- Cover: Air Cover
- FC & ESC: Air 4in1 Flight Controller
- Video Transmitter: Onboard 5.8G 25mw~400mw VTX
- FPV Digicam: C03 Digicam
- Motors: 0802SE 23000KV
- Props: Gemfan 40mm 2-Blade
- Battery Connector: BT2.0 U Pigtail
- RX Choices: ELRS 2.4G or TBS Crossfire
- Weight: 21g
- Really useful Battery: LAVA 1S 450mAh 75C
First Impressions
For $95, the {hardware} high quality and worth of the BetaFPV Air75 are spectacular.
The Air75 is principally a much bigger model of the Air65 we not too long ago evaluations, with bigger props and motors: https://oscarliang.com/betafpv-air65/. Nonetheless the flight traits are very completely different.
The BetaFPV Air75 weighs simply 21g, practically 4 grams lighter than its predecessor, the Meteor75. With a 1S 450mAh LiPo, the load involves 33.5g, and with a 1S 550mAh battery, it’s 35.2g. For comparability, the Mobula7 1S Tiny Whoop weighs 24g with out battery.
It’s extremely gentle—about the identical as a 65mm whoop from two years in the past. Don’t underestimate the distinction a number of grams could make; it considerably impacts effectivity and flight traits for small quads on this weight class.
This weight financial savings primarily comes from the upgraded 75mm body, which shares the identical design because the Air65 however is barely bigger to accommodate the 40mm bi-blade propellers from Gemfan and the 0802 23000KV motors.
The remainder of the electronics are similar to the Air65, together with the 4in1 Air AIO FC, an exterior ExpressLRS receiver, and the C03 FPV digicam. The digicam even features a piece of black tape on the again of the PCB to stop gentle leakage.
The U form battery connector is comparable to good contact, no extra struggling when connecting the battery.
Motor and Cover Design
The Air75 options highly effective 23000KV motors, that are extremely highly effective for this construct. The decreased weight not solely enhances maneuverability but additionally minimizes affect throughout crashes, resulting in elevated sturdiness.
Nonetheless, much like the Air65, the digicam tilt angle is a tad too excessive for indoor flying, even at its lowest setting. I want BetaFPV had included extra adjustment factors for the digicam angle on the cover. The present angle is adjustable between 25 and 35 levels, which is okay for outside flying, however for indoor use, it’s a bit an excessive amount of—15 levels can be splendid, particularly for rookies.
You possibly can, nevertheless, use the identical modification I did with the Air65 to decrease the lean angle.
Picture and VTX Efficiency
The digicam within the Air75 delivers superior picture high quality in comparison with the Mobula7. The footage under speaks for itself.
The VTX efficiency is one other spotlight. At 100mW, it supplied constant efficiency, even when flying open air inside 100 meters by bushes and bushes. For indoor use, 25mW was greater than sufficient. I didn’t want to make use of the utmost 400mW energy setting throughout my testing. This dependable video sign is essential for an pleasing FPV expertise.
Nonetheless, word that the 25mW setting on the VTX outputs greater than 25mW, which may very well be a difficulty for tiny whoop racing occasions with strict guidelines about energy output. BetaFPV has acknowledged this and promised to deal with it in future batches. They may ship me a brand new FC this month to verify in the event that they’ve mounted the VTX output problem.
Connecting to Betaflight requires the USB adapter which is supplied.
Flight Efficiency
The BetaFPV Air75 is arms down the perfect 75mm tiny whoop I’ve flown to date. It flies impressively nicely proper out of the field. Though the PID/filter tuning nonetheless has room for enchancment, as with the Air65, it’s fairly good general.
Not solely is it highly effective, but it surely’s additionally extremely nimble. Flying the Air75 and Mobula7 again to again, the distinction in flight traits is noticeable, and it makes you recognize the load discount. With a 1S 450mAh battery, the Air75 hovers at 31% throttle (absolutely charged), and with a 1S 550mAh battery, it hovers at 33% throttle. You barely want greater than 50-55% throttle when flying indoors—it zooms round like a rocket.
One other standout function is the spectacular flight time. On a 1S 450mAh battery, I constantly acquired about 5:30 to six minutes of flight time, whereas on a 1S 550mAh battery, I used to be getting nearly 7 minutes! For comparability, the Mobula7 solely provides me about 4:30. That is largely as a result of light-weight design, which considerably improves effectivity.
Initially, I had issues concerning the 23000KV motors, provided that its predecessor used 19000KV motors. Nonetheless, these motors carried out admirably, offering loads of energy and responsiveness with out sacrificing flight time.
Air65 or Air75?
The choice is easy: For those who primarily fly indoors, go for the Air65. For those who largely fly open air, the Air75 is the higher alternative.
The bigger 75mm whoop is extra steady open air and handles breezes higher. The elevated platform dimension and momentum additionally make it extra enjoyable to fly in freestyle and acro mode. Nonetheless, it’s so quick that it’s tougher to manage exactly in tight areas in comparison with the Air65.
Find out how to Setup
The FC comes with Betaflight 4.5.0, and the FC goal is BETAFPVG473. You could find the default CLI diff right here.
Firstly, bind the receiver,
Receiver firmware goal is BETAFPV 2.4GHz Lite RX. Observe this information in case you don’t know the way: https://oscarliang.com/bind-expresslrs-receivers/
For maiden flight, listed below are the Betaflight configurations:
- Load ExpressLRS Preset
- Set Your Charges
- Allow Telemetry
- Set Arm swap, angle mode swap, turtle mode swap
- Set OSD (disable “Core Temperature” beneath warnings)
- In Energy & Battery, set Minimal Cell Voltage to three.0V, Warning Cell Voltage to three.2V. Set Scale from 750 to 720 beneath Amperage Meter.
See this submit for the perfect settings and tricks to improve your Tiny Whoop expertise: https://oscarliang.com/best-tinywhoop-settings/
Conclusion
General, the BetaFPV Air75 is an impressive 75mm BNF tiny whoop. Its light-weight design, spectacular flight time, and sturdy efficiency make it a best choice for each rookies and skilled pilots. For $95, it’s onerous to discover a higher possibility on this class, and I extremely suggest it to anybody searching for a 1S 75mm whoop.
Get the BetaFPV Air 75 whoop from these distributors:
Batteries aren’t included, get them right here:
Get some spare props right here: https://s.click on.aliexpress.com/e/_DB5XEVH
