Fixed wing landing gear

 

Big Project

Project

Project Manager

Big Project

Project

Project Manager

Fixed wing

Landing gear

@Smile Khatri

Task Description

Design and manufacture a landing gear for the post-comp fixed wing airframe.

Constraints

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Append Date

Constraints

Written By

Append Date

Supports a 5 kg frame

  • Apply a safety factor of 2 - 3

@Smile Khatri

July 28, 2024

Plane does not tip about its center of gravity on ground. (need enough space between the front and rear wheels)

@Smile Khatri

July 28, 2024

Shock absorption mechanism (to prevent stress on the frame during landing)

@Smile Khatri

July 28, 2024

Minimum 2 inch prop clearance

 

 

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Subteam

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Contact Description

 

 

 

Assignees

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Asana Task

Date

Assignee

Asana Task

Date

@Ben Lovegrove

 

July 31 2024

Task Progression/Updates

Author: @ person updating Date: YYYY/MM/DD

UPDATE TITLE

Include any updates here + reasoning

  • Tricycle vs tail dragger

    • leaning towards tail dragger, gives prop clearance and easier to mount to the frame

    • tail dragger risk of tipping?

      • landing will be more flat

    • tail dragger good

    • spring steel to absorb shock

      • about the same price as shock absorbers.

      • springs easier to maintain, specs are available

      • pneumatic shocks? probably stick with spring shocks

      • spring shock can’t be tuned easily

    • start off w aluminum

Author: @Ben Lovegrove 2024/09/05

Initial Design

  • Implementing tail dragger design, two wheels at front one at tail

    • This will give prop more clearance as it is tilted back

  • Using aluminum sheet metal with bends to absorb energy

  • Aluminum was chosen as it is light weight and meets design specs with the lowest safety factor being about 30 when stationary

Screenshot 2024-09-07 175445.png
Front Support Study
  • The design uses the bends to also help create a more stable place

    • Front landing gear bend out to give wider base of support

    • Back landing gear goes straight back to try and keep the centre as in line with the CoG as possible