You are trying to create an irrational transfer function. System interconnections using internal delays can only be represented in state-space, that is why F is defaulted to state-space. Try creating the system using only one equation by simplifying F and then using Pade approximation for the transport delays. Try the following steps:
s = tf('s');
Fs = ((0.0303*s + 1.05)/(0.0303*s+1+0.05*exp(-0.1*s)));
F = pade(Fs, 0);
[num,den] = ss2tf(F.a,F.b,F.c,F.d);
Fsys = tf(num,den);
Check out this other answer that uses transport delays: https://www.mathworks.com/matlabcentral/answers/246815
Also, check the documentation on how this Pade approximation works: http://www.mathworks.com/help/symbolic/pade.html
