Heron "Riley Conversion"
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Heron "Riley Conversion"
Any Connellan / Air Tasmania / Kendall drivers out there that may have drawings and close ups of the Riley installation?
Where the props on the same "line"
In the same line / plane as the original Gypsy installation?
Where the props on the same "line"
In the same line / plane as the original Gypsy installation?
Found this site........scroll down and on the LHS is a pic of 'Heron 2 VH-NJI'
at 'Australia's Museum of Flight'....
de Havilland Heron - Wikipedia, the free encyclopedia
Photo appears to have the IO-540's on board.
Cheers with the modelling.
at 'Australia's Museum of Flight'....
de Havilland Heron - Wikipedia, the free encyclopedia
Photo appears to have the IO-540's on board.
Cheers with the modelling.
Join Date: Dec 2004
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'cac-s' I only did a quick search & found 3 views on the Queen donks but using them & the many pixs of both types it appears that both engine versions shared a common thrust line, slightly above the wings chord line.. I'd be surprised if the thrust lines where widely different anyway. I used to fly the DH-104 (Dove) Riley 400 gee gee's version & often looked closely at the Gypsy/Queen version & they looked about the same to me. They flew well but where typical pommy rubbish, ergonomic nightmare!
Good luck & if yr building a model of one & want the exact thrust line then you are certifiable buddy
Wmk2
Good luck & if yr building a model of one & want the exact thrust line then you are certifiable buddy
Wmk2
I have a few photographs of the Heron with an engine removed which shows good detail of the firewall etc. Plus a few others. They are in BNE. I'll be home on the 4th of next month on leave and can email them if you pm me. The IO-540 engine was 290 HP by memory (PA31 engine without the turbocharger de-rating it from 310 HP) Even on a hot day with a full load they performed better than most light twins. Very 'Pommy' though, rivets from a shipyard, phneumatics, rag flight controls and a cockpit that looked like a madmans tool shed.