fix(airframes/10043): Fix pusher being too weak

The airframe 10043 (make px4_sitl sihsim_standard_vtol) currently does
not have enough forward thrust to reach VT_ARSP_TRANS (10) or
VT_ARSP_BLEND (8), so we get front transition timeout.

By bisecting, we find that #26720 breaks it. The PR introduces a new
dynamic prop model, which is now used in the airframes 1101, 1102, 1103,
and 1105 (new addition), but not 10043.

The PR also removes a previous magic number that gave the standard VTOL
pusher twice the max thrust of the hover motors (2 * 2N = 4N). It
introduces a separate SIH_F_T_MAX, but by default it is 2N, causing the
weak pusher for 10043.

Fix by using the new dynamic propeller model by default, with the same
params that #26720 introduces for airframe 1103 (It would also suffice
to only set SIH_F_T_MAX=6, but now that we have the nicer model let's
use it).

Note that 10041 (sihsim_airplane) is not broken by #26720 in this way,
as it already has SIH_T_MAX of 6N.
This commit is contained in:
Balduin
2026-04-13 14:21:13 +02:00
committed by Balduin
parent 0f810a1cdb
commit 3008a496b4
@@ -93,5 +93,18 @@ param set SIH_IXZ 0
param set SIH_KDV 0.2
param set SIH_L_ROLL 0.2
# pusher propeller model with advance ratio, model from UIUC APC 8x6"
param set SIH_F_T_MAX 6
param set SIH_F_Q_MAX 0.03
# if SIH_F_CT0 > 0, SIH_F_T_MAX and SIH_F_Q_MAX will be overridden
param set SIH_F_CT0 0.131
param set SIH_F_CT1 0.004
param set SIH_F_CT2 -0.146
param set SIH_F_CP0 0.0777
param set SIH_F_CP1 0.0498
param set SIH_F_CP2 -0.11
param set SIH_F_DIA_INCH 8
param set SIH_F_RPM_MAX 9000
# sih as standard vtol
param set SIH_VEHICLE_TYPE 3