Pipistrel Velis Electro — 3-Leg Route Planner

A browser-based flight energy planner for the Pipistrel Velis Electro, supporting routes with up to two mountain passes (3 legs).

Files

• index.html — route planner (main page)
• velis_performance.html — performance data & settings
• velis_electro_poh.json — POH tables (rate of climb, %SOC, cruise power)

How to run locally

npx live-server --open=index.html

Deployment

• GitHub: https://github.com/brigger/velis-route-planner
• VPS: 95.217.222.205 (Ubuntu 24.04, Nginx)
• URL: http://95.217.222.205/velis-planner/

Update VPS after changes

git push
ssh [email protected] "cd /var/www/velis-planner && git pull"

Reboot VPS

ssh [email protected] "reboot"

Nginx starts automatically on boot.

TODO — DNS & HTTPS

After maillink.ch updates the DNS (A record for brigger.com → 95.217.222.205):

1. Verify it works: http://www.brigger.com/velis-planner/
2. Enable HTTPS:

   ssh [email protected] "certbot --nginx -d brigger.com -d www.brigger.com"

   This automatically gets a free SSL certificate and configures Nginx for HTTPS with auto-redirect.

Aircraft model

Pipistrel Velis Electro

Parameter	Value
Nominal battery	24.8 kWh
Climb power	48 kW at Vy (75 KIAS)
Cruise power	20–36 kW (selectable)
Descent	Power-off glide, 15:1 ratio at 70 KIAS
ROC	POH table, interpolated by altitude & ISA deviation
%SOC	POH table, interpolated by SOH

How it works

Climb: ROC from POH table (1,000 ft bands, altitude & ISA-deviation interpolated). Energy from %SOC table scaled by actual vs reference ROC (600 ft/min).

Cruise: speed and %SOC from POH power setting tables.

Descent: power-off glide (0 %SOC), distance from glide ratio.

Includes takeoff (5–10 %SOC) and arrival (straight-in 5% or traffic pattern 13%).

Reserve SOC configurable (default 30%).