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I need your Advice

I working on Story were German history goes little different
Here goes Aerospace industry in VTOL with Do-31 and EWR VJ 101 get into service.
One of civilian application is a VTOL Business Jet

I took the MBB HFB 320 Jet as template
With Mass 9600 kg it need around 117,67kN thrust for vertical take off and landing.
Divided in eight engines each with around 14,7kN (for engine-out backup)
The HFB 320 is ideal since the wings have a negative sweep of 15 °
putting the lift engines on wingtips near centre of gravity fuselage

but there question:
would a shoulder wing work better as low wing of original HFB 320 ?
who improve visibility for Crew downwards ?
and would be control improvement to install a system of reaction control valves directing jets of bleed air from the lift or main engine ?

<blockquote data-quote="Michel Van" data-source="post: 440808" data-attributes="member: 760">I need your Advice I working on Story were German history goes little different Here goes Aerospace industry in VTOL with Do-31 and EWR VJ 101 get into service.One of civilian application&nbsp; is a VTOL Business Jet I took the MBB HFB 320 Jet as template With Mass 9600 kg it need around 117,67kN thrust for vertical take off and landing.Divided in eight engines each with around 14,7kN&nbsp;&nbsp; (for engine-out backup) The HFB 320 is ideal since the wings have a negative sweep of 15 °putting the lift engines on wingtips&nbsp; near centre of gravity fuselage but there question:would a shoulder wing work better as low wing of original HFB 320 ?who improve visibility for Crew downwards ?and would be control improvement to install a system of reaction control valves directing jets of bleed air from the lift or main engine ?</blockquote>

[QUOTE="Michel Van, post: 440808, member: 760"] I need your Advice I working on Story were German history goes little different Here goes Aerospace industry in VTOL with Do-31 and EWR VJ 101 get into service. One of civilian application is a VTOL Business Jet I took the MBB HFB 320 Jet as template With Mass 9600 kg it need around 117,67kN thrust for vertical take off and landing. Divided in eight engines each with around 14,7kN (for engine-out backup) The HFB 320 is ideal since the wings have a negative sweep of 15 ° putting the lift engines on wingtips near centre of gravity fuselage but there question: would a shoulder wing work better as low wing of original HFB 320 ? who improve visibility for Crew downwards ? and would be control improvement to install a system of reaction control valves directing jets of bleed air from the lift or main engine ? [/QUOTE]

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