TOST Flugzeuggerätebau
Kontakt Tost
Tost Produkte
Order Form
Tost Produkte Suche

Retrofit to disk brake wheel

Many modern gliders and power gliders are originally equipped with disk brake wheels nowadays. To also make their advantages availalbe for elder aircraft types, we offer retrofit kits from shoe brake wheel to disk brake wheel.
Depending on the aircraft type, the available space varies. With very tight space in the landing gear box, the existing shoe brake wheel has to be replaced by a complete new disk brake wheel.
If there is more space available, a brake disk only can be fitted to the existing wheel hub, after removing the shoe brake assembly.

Retrofit from shoe brake wheel to disk brake wheel

EASA-approved retrofit kits, where the existing shoe brake wheel is replaced by a new disk brake wheel or a brake disk is fitted onto the existing shoe brake wheel.
The extend of delivery includes the full documentation acc. to the Technical Note/ Minor Change Approval with detailed installation instructions, parts list, drawing and EASA FORM 1.

 

 P/N Aircraft type Disk brake wheel Approval
051412 Discus a to Discus 2a
Discus CS
Ventus a to Ventus 2b
4′′ Classic 110-20 Tost
EASA Minor Change Approval
051415 LS3 – 8 4″ Classic 110-20 Tost
EASA Minor Change Approval
051564 Mosquito 5′′ Classic 122-105-20 Streifeneder TM
051562 ASK13 5′′ Classic 109-92-20 Tost
EASA Minor Change Approval
051570 Swift 5′′ Classic 115-102-25 Marganski SB
051520 Twin-Astir Brake disk 170-35-5 Grob TM
051530 Astir CS 5″ Standard TN 01-2020
051810 Piaggio P149D 8′′ Cleveland 40-98B German Air Force

 

 

Retrofit to disk brake wheel Penta

The advantages of the 5 inch Penta disk brake wheel – low weight and good servi- ceability – can be transferred to modern gliders with the help of the following retrofit kits. All retrofit kits are EASA approved as Minor Change Approvals.

 

 P/N Aircraft type Disk brake wheel Remarks
051710 Duo Discus, Arcus, Nimbus 5′′ SBP 135-75-30 ersetzt
5′′ Classic-Rad Tost TM 01-2011
051720 Duo Discus, Arcus, Nimbus 5′′ SBP 135-70-30 ersetzt
5′′ Beringer-Rad Tost TM 01-2011
051740 Discus 2b bis Discus 2cT
Nimbus 2 + 3
Ventus 2c bis Ventus 2cM
5′′ SBP 100-51-20 ersetzt
5′′ Classic-Rad Tost TM 02-2011
051742 Discus 2b bis Discus 2cT Ventus 2c
bis Ventus 2cM
5′′ SBP 100-51-20 ersetzt
5′′ Beringer-Rad Tost TM 02-2011
051730 ASK 21 ASK 21 Mi 5′′ SBP 125-77,5-11⁄4′′ Schleicher TM 33 Schleicher TM 5

Important notice:
We recommend the retrofitting of your brake system to TOST brake hydraulics at the same time!
You will find detailed information in the chapter “Brake hydraulics”.

 

Retrofit to disk brake wheel Classic

For the following aircraft types, we offer complete retrofit kits to disk brake that include all necessary components. Please check for an approval previously with your inspector.

 

P/N Aircraft type Disk brake wheel
051430 Avo Samburo 4′′ Gnom 202-30
051433 Scheibe SF 25B Slingsby T61 4′′ Gnom 212-30
051571 SZD-50 Puchacz 5′′ Classic 122-25
051572 SZD-9 Bocian 5′′ Classic 122-25
051567 PW-6 5′′ Classic 122-20
051566 DG600 5′′ Classic 122-20
051564 Glasflügel 304 5′′ Classic 122-20
051564 Kiwi 5′′ Classic 122-20
051565 SZD-45 Ogar 5′′ Classic 115-25 /115-35
051570 Jantar 5′′ Classic 115-25
051550 SZD-55 Promyk 5′′ Classic 115-25
051610 Bölkow 207 6′′ Classic 128-1,5′′
051640 DR 400 6′′ Classic 80/120-50
051651 DR 1050/DR 1051 6′′ Classic 95/50
051661 Morane 6′′ Classic 95/50
051510 Scheibe SF 34 B Brake disk is fitted to the existing wheel
051560 Kiwi Brake disk is fitted to the existing wheel
051560 Mosquito Brake disk is fitted to the existing wheel


The following components are included in each retrofit kit:

  • Brake disk or complete hub with brake disk
  • Brake calliper with the suitable anchor plate assembly
  • Master cylinder
  • Hydraulic hose and connecting part

Feel free to contact us if you have any questions regarding the retrofit kits, we will be pleased to tell you more about them.

Tost Produkt