Bristell B23-915
Airplane Maintenance Manual
supplement
Chapter 03
Issue: 09.12.2021
Chapter 03 Page 1
03
Description
Table of Contents
Chapter
Title
Page
03-10
Change Description......................................................................... 1
03-10
Change Description
The goal of the design change DC-73-003 for the Bristell B23 is to
implement the more powerful Rotax 915 engine into the B23 airframe.
Major modifications to the Bristell B23 type design are following:
-
New powerplant installation:
o
New ECU controlled 141hp engine 915iSc3A featuring:
▪
Turbocharger
▪
Injection
▪
Intercooler
▪
2
nd
water cooler
o
New engine mount to fit the suspensions frame from Rotax
-
New upper & lower cowling:
o
New/repositioned openings for air inlet, cooling, exhaust, …
o
Upper cowling featuring two access hatches for oil and
coolant level control
-
New inspection access hatch on the fuselage belly skin for the main
and auxiliary fuel pumps
-
New instrument panel layout for Rotax 915 control switches
-
Fuel selector “dual valve” type and with remote location
-
Additional fuel return line into the RHS tank, to account for the
higher return fuel volume
-
Optional glider towing system