Hangar Haulers
Team 8B
Introduction
Hangars in High Demand,
But Short Supply
71 % of airports surveyed have a waiting list for their hangars (2021)
72 % of aircraft owners wait 6 mo. to 2+ years
36% of hangars described as in need of “some” or “major” repair
Impediments to Building New Hangars
Construction Costs
Difficulty attracting private investments
Shortage of Land
Alternative Solution:
Retrofit Existing Spaces &
Maximize Capacity
This may give rise to problems with avoiding infrastructural obstacles. which planes cannot easily avoid due to a basic limitation: their wheels only facilitate back and forth movement.
Problem Statement
Aircraft hangars need the ability to maneuver planes through tight spaces in order to maximize their storage capacity.
User
Aviation mechanic technicians and airport workers
Purchaser
Aircraft hangars and airports
State of the Art
Daytona Car Dolly
Red Viper
Best Tug
Specifications
Prototyping
Models
Foamcore
Created rough markups of the bracket dimensions/attatchment points, and illustrated the rotating drive wheel.
3d Model
Prototyped motor placement illustration.
Final Prototype
Drive wheel mounted on a steel frame welded to a Daytona Dolly.
Parts
Daytona Dolly
We modified this widely available and effective, albeit ummotorized, dolly.
Gears
These 3d printed gears reduced the motors and connected their force to the wheel or the bearing structure respectively.
Motors
24V DC motors purchased from amazon. They have a rated torque of 8 and 6.85 newton-meters respectively, which would be enough to move a small aircraft.
Electronics
Single pole single throw switch connecting each motor to a 12V battery.
Steel Legs
Provides the mount for the larger motor and the wheel's axel by connecting to the bottom part of the bearing structure.
Steel Brackets
Mounts the top part of the bearing structure to the side of the Daytona dolly while providing enough clearance for the motor to pass under it.
Assembly
Angle Grinding
Questionable Welding
Bearing Assenbly
Spare Part Graveyard
Testing & User Feedback
Testing
User Feedback
Positives
“We would 100% use this product - 10!”
“My favorite feature is the motorized part with the handheld remote control.”
“Thank you so much for designing this! I love the work.”
Questions and Concerns
“Is there is a brake on each dolly, so if I was by myself and needed to lock one wheel and pivot the two other dollies, that could happen.”
“I'm wondering if there could be several speeds.”
“I am wondering how hard it would be to integrate a "safety envelope" feature that …. sends out sensors, so when you're getting within say an inch of that envelope, it gives you a little warning.”
Ethics & Sustainability
Ethical Considerations
Sustainability
Improvements on Existing Models
easily taken apart: individual parts can be repurposed
much lighter: fewer materials
folds for minimizing packaging
long lifetime