Before pushback
Wingtip Whisperer
Hear the hangar wall before your wingtip does.
A clearance alarm that sits on your wingtip while you move the airplane by hand or with a tug. It beeps when anything gets inside the distance you set, and faster as you get closer.
$59 · pair $99 · whole airplane (4) $179
How it listens
Three sensors at the tip
They look forward past the leading edge, outward off the end of the wing, and aft past the trailing edge. Those are the three directions a wingtip hits things.
The tone rises as the gap closes
Slow beeps at your set distance, faster and higher as you get closer, a steady tone inside about six inches. It's built to be heard from the tug.
Set your distance on the screen
Up and down buttons, 1 to 10 feet in six-inch steps. No app, no phone. It remembers the setting.
Three AAA batteries
The kind you can buy anywhere. It shows the battery level and goes to sleep on its own after ten idle minutes.
A suction cup on top of the wing
Lever-lock cup on clean paint, within about six inches of the tip. A lanyard loop if you want a backup.
Off before you start
It's for moving the airplane with the engine off. Take it off before you start.
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Who this is for
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You hangar it yourself, with a tug, alone.
Every push into the T-hangar is you walking back to check the trailing edge against the door track. Nobody is on the other wing. This is the other wing.
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Shared box hangar.
Three airplanes, one door, somebody's strut eighteen inches from your tip. It beeps for the thing you can't see from the tug handle.
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Fly-ins and transient parking.
Tie-down rows get tight by Saturday afternoon. Put it on before you push in, pull it before you start.
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Clubs and schools.
Ten people move the airplane, and one of them is new. Four units on the corners cost less than one wingtip repair.
Why
A wingtip strike on a light single is typically a four-figure repair before paint. Then come the days the airplane sits waiting for it, and the damage entry in the logbook that follows it to the next owner. Hangar rash is the most common kind of ground-handling damage.
What it costs
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Single
$59
One unit for one wingtip.
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Pair
$99
One unit for each wingtip.
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Whole airplane
$179
Both wingtips + both stab tips
Four units, so you're covered backing in.
Nothing to pay yet. Get on the notify list and we'll email you when Batch 1 is ready to order.
REMOVE BEFORE ENGINE START
After shutdown
- Engine
- Off
- Cup
- Clean, dry paint
- Unit
- Off the wing before start
Ground use only. It is not for taxi or flight, and the cup is not rated for prop wash. Engine off the whole time it's on the airplane. Remove it before you start. It is not a substitute for a wing walker or your own eyes. It's a second set of ears.
Specs
| Sensors | 3 × ultrasonic: forward, outward, aft |
|---|---|
| Sensing range | 1 ft–13 ft |
| Alarm distance | You set it, 1–10 ft, in 6 in steps |
| Display | OLED, readable from the tip |
| Power | 3 × AAA |
| Battery life | ~20 h active; months on standby |
| Size | ~110 × 70 × 35 mm, without the cup |
| Mount | lever-lock suction cup, foam gasket, lanyard loop |
| Shell | PETG |
| Made in | Colorado |
Questions
Does it work on a curved tip?
Yes — the mount has a ball joint, so you level the unit on a curved tip.
Do I need one on each tip?
If you want both tips covered, yes. That's what the pair is: one unit for the left tip and one for the right. Four units cover the wingtips and the tips of the horizontal stabilizer, so you're covered backing in.
Can I use it in the rain?
No. It's for the hangar and the ramp in fair weather. Keep it dry and out of freezing temperatures.
Will it mark my paint?
A foam gasket keeps the cup from scuffing. Put it on clean, dry paint.
When can I get one?
Batch 1 shipping early 2027. Leave your email above and we'll tell you when it's ready to order.