DH VAMPIRE

flyingpete
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9 years 4 months ago #5243 by flyingpete

Replied by flyingpete on topic DH VAMPIRE

Thanks for the pics Dave, I think if I shorten the ducts a little at th exit end it will bring them away from the1/4 ply spar/ former enough for me to fabricate some balsa ducts to obtain a good airflow into the fuselage

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DavidTappin
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9 years 4 months ago #5251 by DavidTappin

Replied by DavidTappin on topic DH VAMPIRE

Pete wrote of

fabricate some balsa ducts

Pete, when fabricating the ducts don't forget that I want to get the turbine as far forward as possible otherwise there won't be enough lead on the roof of St Mary's Fordingbridge to get the C of G in the right place.

With the Simjet Kerry Sterner shows in position on the plans he told me that he needed over 3lb of lead in the nose.

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DavidTappin
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9 years 4 months ago #5252 by DavidTappin

Replied by DavidTappin on topic DH VAMPIRE

Dave, where did you find those DerJet pictures?

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flyingpete
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9 years 4 months ago #5254 by flyingpete

Replied by flyingpete on topic DH VAMPIRE

DavidTappin wrote: Pete wrote of
fabricate some balsa ducts

Pete, when fabricating the ducts don't forget that I want to get the turbine as far forward as possible otherwise there won't be enough lead on the roof of St Mary's Fordingbridge to get the C of G in the right place.

With the Simjet Kerry Sterner shows in position on the plans he told me that he needed over 3lb of lead in the nose.

Yes David i remember you saying about getting the turbine well foreward,your lucky you still have some lead left on your church :ohmy:
The ducts are not a problem as they can be fitted at any time from the inside so next time we meet up i will take the turbine with me

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